FALK™ CONCENTRIC & RIGHT ANGLE GEAR DRIVES 1000 SERIES F SELECTION GUIDE

Selection Guide 311-310, December 2006

Tabel of Contents People Conveying Equipment Selection of Rexnord gear drives
for applications whose primary purpose is the transportation of
Basic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
people is not approved. This includes such applications as freight
Conditions Affecting Selection. . . . . . . . . . . . . . . . . . . . . . 4 & 5
or passenger elevators, escalators, man lift platforms and ski tows
Service Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 & 7
and ski lifts.
Load Classification Factors . . . . . . . . . . . . . . . . . . . . . . . . 8 & 9
Type FC & FZ Concentric Drives If the primary purpose of the application is material conveyance
How to Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 and occasionally people are transported, the Rexnord warranty
How to Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 may remain in effect provided the design and load conditions are
Horsepower & Torque Ratings . . . . . . . . . . . . . . . . . 12 & 13 not exceeded and certification to the appropriate safety codes
Thermal Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 and load conditions has been obtained by the system designer or
Overhung Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-17 end user from the appropriate enforcement authorities.
Thrust Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Exact Ratios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Gear Drive Ratings
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 & 21 All gear drive ratings in this selection guide allow 100%
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-29 overload for starting loads and momentary overloads for
Type FCB & FZB Right Angle Drives electric motor driven applications operating ten hours per
How to Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 day under uniform conditions (unity service factor). For other
How to Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 conditions, compute an equivalent power by multiplying the actual
Horsepower & Torque Ratings . . . . . . . . . . . . . . . . . . . 32-39 power required for the application by the appropriate service
Thermal Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 & 41 factor.
Overhung Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-44 Gear Drive Identification Tables in this selection guide identify
Thrust Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 gear drives by size, type and ratio. See Gear Drive Identification
Exact Ratios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Pages 11 & 31.
Right Angle Assemblies & Shaft Rotations. . . . . . . . . . . . . . 47
Horsepower & Torque Gear drive mechanical horsepower and
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48-52
torque ratings are tabulated in the selection guide to permit
selections for specific application requirements.
When ratings are shown in bold type in either the horsepower or
torque tables, a thermal condition may exist. For more
information, refer to Page 14 for concentric drives or Pages 40 &
41 for right angle drives.
Stored & Inactive Drives Each gear drive is spin-tested with a
rust preventive oil that will protect parts against rust for a period
of four months in an outdoor shelter or twelve months in a dry
Factory Warranty We’re so confident in the performance and building after shipment from the Factory.
reliability of these Falk gear drives that we’re backing this Periodically inspect stored or inactive drives and spray internal
comprehensive offering with the best standard warranty in the parts with rust inhibitor every six months or more often, if
business. Our full, 3-year Heavy-Duty Warranty provides necessary. Drain oil before adding rust inhibitor. Indoor dry
“shaft-to-shaft” protection on all Falk components – including storage is recommended.
bearings and seals (warranty extends for 3 years from date of
Drives ordered for extended storage can be treated at the Factory
shipment). It’s an industry first... and one more powerful reason
with a special preservative and sealed to rust-proof parts for
why Rexnord is your ultimate bottom-line value.
periods longer than those cited above, if specified on the order.

Basic Information Refer to appropriate service manual for extended storage of gear
drives which have been in service.
Falk Renew Nothing lasts forever. Not even Falk products. But
Safety Notes even after years of hard use, your Falk equipment can be restored
Gear Drives The power supplied to the geared drive must be to fully-warranted, as new condition.
equal to or less than the power for which the drive was selected Falk Renew can repair or rebuild your worn or damaged Falk
using the appropriate service factor for the application. The equipment to the original specifications preserved in Falk
customer must also assume the responsibility of isolating the engineering files. Quickly and economically. Call your Rexnord
geared drive from any vibratory or transient load induced by the office or Rexnord-Falk Distributor for details.
driven equipment.
Install and operate Rexnord products in conformance with
applicable local and national safety codes and per Rexnord
installation manuals which are shipped with gear drives and are
also available upon request. Suitable guards for rotating members
may be purchased from Rexnord as optional accessories. Consult
your local Rexnord Representative for complete details.

Copyright 1997, 2006. Rexnord Industries, LLC. All Rights Reserved. Litho in U.S.A. FALK, Renew,
RAM and Rexnord are registered trademarks.
The contents of this selection guide are subject to change without notice or
obligation. Information contained herein should be confirmed before placing orders.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 4

Conditions Affecting Selections
Non-Standard Application Procedures
The following conditions may affect the drive selection procedure, Effects of Solar Energy If a drive operates in the sun at ambient
drive size and auxiliary equipment being furnished. temperatures over 100°F (38°C), then special measures must be
taken to protect the drive from solar energy. This protection can
Excessive Overloads The maximum momentary or starting load
consist of a canopy over the drive or reflective paint on the drive. If
must not exceed 200% of rated load (100% overload). Rated load
neither is possible, additional cooling may be required, such as
is defined as gear drive rating with a service factor of 1.0. If the
shaft fans, cooling tubes, or heat exchangers.
maximum starting or momentary load exceeds the above
conditions, compute a second equivalent power rating by dividing Overhung Loads & Thrust Loads The overhung load and thrust
the peak load by two. The gear drive selected must have capacity load ratings published in this selection guide are based on a
equal to, or in excess of, the larger equivalent power rating. service factor of unity and a combination of the most unfavorable
conditions of rotation, speed, direction of applied load and drive
Reversing Service Applications involving either more than 20
loading. If the calculated load exceeds the published value, or if
reversals per ten hour period, or less than 20 reversals per ten
an overhung load and thrust load are applied simultaneously to a
hour period with peak torques greater than 200% of normal load
shaft, refer complete application information to the Factory. For
must be referred to Falk.
more information refer to tables and guidelines on Pages 15-18 or
Brake Equipped Applications When a gear drive is equipped 42-45.
with a “working” brake that is used to decelerate the motion of the
Product Modifications Rexnord can supply special product
system and the brake is located between the prime mover and the
modifications to suit your application needs. Contact your local
gear drive, select the drive based on the brake rating or the
Rexnord-Falk Representative for housing modifications, special
highest equivalent power rating, whichever is greater. If the brake
ratios, special shafts, special mounting conditions, accessory
is used for holding only and is applied after the motion of the
modifications and other special application requirements.
system has come to rest, the brake rating must be less than 200%
of the catalog rating, refer the application to the Factory. Also Non-Standard Motors Factory approval is required for motors
refer to the Factory all applications in which the brake is located and motor positions that vary from those shown in this selection
on the output shaft of the gear drive. guide. Motor brackets are designed to suit the standard Type T10
Steelflex couplings furnished with the drives and current standard
Oversized Prime Mover Published service factors do not cover
1750 rpm, single speed, A-C, NEMA, T series motor frames.
applications that require oversize prime movers for high energy or
Standard length and semi-standard length blank bracket
peak loads. Refer such applications to the Factory for selection of
dimensions are covered in 317-315. Use of oversized motors, the
suitable drives.
extending or modifying of motor brackets, addition of clutches,
Speed Variation or Multi-Speed Applications brakes, etc., require Factory approval. Normally, motor plates are
When selecting gear drives for variable or multi-speed recommended for these applications.
applications, determine the speed which develops the greatest
torque and select the gear drives on this basis. If the speed is not
listed in the selection table, use the next lower output speed.
All variable or multi-speed applications will be referred to the
Engineering Department to specify lubrication components for
adequate lubrication at the slowest speed, without excessive
heating or churning at the highest speed. It is essential that all
orders indicate minimum and maximum speeds, as well as the
speed duration cycles.

5 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Motoreducer Selections for Non-NEMA Motors
After determining the correct drive size by using standard selection
Max NEMA T-Frames
procedures, determine which T-frame motor listed in the table for Standard Brackets
below is dimensionally equal to or larger than the substitute D Max. NEMA
DRIVE SIZE
motor. If the T-frame size does not exceed the maximum listed in T-Frame
the table below, a standard motor bracket can be used with A 1020 & 1030 215T
appropriate shim blocks. If the substitute motor is dimensionally 1040 &1050 326T
too large for the drive selected, use a larger drive with a bracket 1060 365T
U 1070 405T
that will accept the substitute motor, or use a motor plate, or 1080-1100 445T
consider the use of a semi-standard or special motor bracket.
Total cost of the reducer system should be considered in deciding
the use of a motor plate or special motor bracket. Contact the
local Rexnord-Falk sales office for assistance if necessary. L

HP Ratings & Mounting Dimensions for Standard 1750 rpm, 1964 Rerated, NEMA 60 Hertz,
Open Drip Proof & Enclosed Motors
T-Frame Size 143T 145T 182T 184T 213T 215T 254T 256T 284T 286T 324T 326T 364T 365T 404T 405T 444T 445T
HP (Drip Proof) 1 11/2-2 3 5 71/2 10 15 20 25 30 40 50 60 75 100 125 150 200
HP (Enclosed) 1 11/2-2 3 5 71/2 10 15 20 25 30 40 50 60 75 ... 100 125 150
U (Inch) .875 .875 1.125 1.125 1.375 1.375 1.625 1.625 1.875 1.875 2.125 2.125 2.375 2.375 2.875 2.875 3.375 3.375
D (Inch) 3.50 3.50 4.50 4.50 5.25 5.25 6.25 6.25 7.00 7.00 8.00 8.00 9.00 9.00 10.00 10.00 11.00 11.00
A (Inch) 7.00 7.00 9.00 9.00 10.50 10.50 12.50 12.50 14.00 14.00 16.00 16.00 18.00 18.00 20.00 20.00 22.00 22.00
L (Inch) 8.50 9.50 10.00 11.00 12.38 13.88 16.50 18.25 18.88 20.38 21.00 22.50 23.00 24.00 26.12 27.62 30.50 32.50

Maximum Standard Allowable Tilt & Incline Mounting Limits H

TILTED INCLINED

DRIVE L.S. DRIVE

SIZE END
H VIEW SIZE H

LEFT HAND TILT RIGHT HAND TILT OUTPUT SHAFT DOWN OUTPUT SHAFT UP

Left Hand Right Hand H.S. Shaft Up L.S. Shaft Up

1020 5° 5° 5° 10° 1020
1030 5° 5° 5° 10° 1030
1040 5° 5° 5° 10° 1040
1050 5° 5° 5° 10° 1050
1060 5° 5° 5° 2° 1060
1070 5° 5° 5° 2° 1070
1080 5° 5° 5° 2° 1080
1090 5° 5° 5° 2° 1090
1100 5° 5° 5° 2° 1100

H Maximum limits shown above apply to standard Type FC, FCB, FZ & FZB drives without modification. For applications requiring higher tilt or incline angles, refer to the Factory.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 6

 Table 3 — Service Factors Listed by Industry
Service Factors For electric motor, steam turbine or hydraulic motor drives . . .
recommendations are MINIMUM and normal conditions are assumed.
Table 1 — Class/Service Factor Conversion Table
Service Service
Class Service Factor Industry 3 to Over Industry 3 to Over
I 1.00 10 10 10 10
II 1.41 Hour Hour Hour Hour
III 2.00 BREWING & DISTILLING Extruder . . . . . . . . . . . . . . . . . . . . 1.50
Bottling Machinery. . . . . . . . . . 1.00 1.25 Fourdrinier Rolls—Lumpbreaker,
Brew Kettles, Continuous Duty . 1.25 1.25 Wire Turning Dandy &
Can Filling machines . . . . . . . . 1.00 1.25 Return Rolls . . . . . . . . . . . . . . . . 1.25
Service Factors Cookers—Continuous Duty . . . 1.25 1.25
Mash Tubs—Continuous Duty . 1.25 1.25
Jordan . . . . . . . . . . . . . . . . . . . . .
Kiln Drive . . . . . . . . . . . . . . . . . . .
1.50
1.50
Drives may be selected by Service Factor or Load Classification. Scale Hoppers—Frequent Starts. 1.25 1.50 Mt. Hope & Paper Rolls . . . . . . . . . 1.25
CLAY WORKING INDUSTRY Platter . . . . . . . . . . . . . . . . . . . . . 1.50
Selections may vary, so compare Service Factor against Load Brick Press . . . . . . . . . . . . . . . 1.75 2.00 Presses (Felt & Suction) . . . . . . . . . 1.25
Classification. Selecting the lowest Service Factor from Table 1 will Briquette Machines . . . . . . . . . 1.75 2.00 Pulper (Continuous) . . . . . . . . . . . . 1.50
Repulper (Heavy Shock) . . . . . . . . . 2.00
result in the most economical selection. Clay Working Machinery . . . . . 1.25 1.50
Reel (Surface Type) . . . . . . . . . . . . 1.25
Pug Mills . . . . . . . . . . . . . . . . 1.25 1.50
A gear drive is rated to a specific application by the use of Service Screens
DISTILLING . . . . . . . . . . . . See Brewing
Chip & Rotary . . . . . . . . . . . . . . 1.50
Factors. Each application has its own conditions and operating DREDGES Vibrating . . . . . . . . . . . . . . . . . 2.00
Cable Reels, Conveyors . . . . . . 1.25 1.50 Size Press . . . . . . . . . . . . . . . . . . . 1.25
requirements. These have been analyzed and catalogued. Cutter Head, Jig Drives . . . . . . 1.75 2.00 Super Calenders l . . . . . . . . . . . . 1.25
Numerical values, based on field experience. Have been assigned Maneuvering Winches & Pumps. 1.25 1.50 Thickener & Washer
Screen Drives . . . . . . . . . . 1.75 2.00
to these classifications for intermittent service of 3 to 10 hours per Stackers, Utility Winches. . . . . . 1.25 1.50
AC Motor . . . . . . . . . . . . . . . . . 1.50
DC Motor. . . . . . . . . . . . . . . . . 1.25
day and for service over 10 hours per day and also for the type of FOOD INDUSTRY Vacuum Pumps . . . . . . . . . . . . . . . 1.50
prime mover. . . Electric motor or engine. Values for most Beet Slicers . . . . . . . . . . . . . . . 1.25 1.50 Wind & Unwind Stand . . . . . . . . . . 1.00
Bottling, Can Filling Machine . . 1.00 1.25 Winders (Surface Type) . . . . . . . . . 1.25
applications are listed by Application on Page 7, Table 4 and by Cereal Cookers. . . . . . . . . . . . 1.00 1.25 t Yankee Dryers . . . . . . . . . · · . . . 1.25
Industry at right, Table 3. Refer unlisted applications to the Factory. Dough Mixers, Meat Grinders . 1.25 1.50 PLASTIC INDUSTRY
LUMBER INDUSTRY Batch Drop Mill, 2 smooth rolls 1.25 1.25
Since most industrial applications are electric motor driven, Barkers—Spindle Feed. . . . . . . 1.25 1.50 Calenders. . . . . . . . . . . . . . . . 1.50 1.50
Service Factors are based on the use of electric motors. These Barkers—Main Drive . . . . . . . . 1.75 1.75 Compounding Mills. . . . . . . . . 1.25 1.25
Carriage Drive . . . . . . . . . Refer to Factory Continuous Feed, Holding &
factors can be easily converted to engine-drive factors as outlined Conveyors Blend Mill . . . . . . . . . . . . . . 1.25 1.25
in Table 2 below. Burner . . . . . . . . . . . . . . . . 1.25 1.50 Extruders . . . . . . . . . . . . . . . . 1.50 1.50
Main or Heavy Duty . . . . . . 1.50 1.50 Variable Speed Drive. . . . . . 1.50 1.50
Service Factors are based on the assumption that the system is free Main Log . . . . . . . . . . . . . . 1.75 2.00 Fixed Speed Drive . . . . . . . . 1.75 1.75
Re-Saw Merry-Go-Round. . . 1.25 1.50 Intensive Internal Mixers
of dynamic vibrations, as explained in the warranty section, and that Slab . . . . . . . . . . . . . . . . . . 1.75 2.00 Batch Mixers . . . . . . . . . . . . 1.75 1.75
maximum momentary or starting loads do not exceed 200% of the Transfer . . . . . . . . . . . . . . . 1.25 1.50 Continuous Mixers . . . . . . . 1.50 1.50
rated load. Refer applications subject to repetitive shocks and Chains—Floor . . . . . . . . . . . . 1.50 1.50 RUBBER INDUSTRY
Chains—Green. . . . . . . . . . . . 1.50 1.75 Batch Drop Mill, 2 smooth rolls 1.50 1.50
applications where exceedingly high energy load must be absorbed, Cut-Off Saws—Chain & Drag . 1.50 1.75 Calenders. . . . . . . . . . . . . . . . 1.50 1.50
as when stalling, to the Factory for special consideration. Debarking Drums . . . . . . . . . . 1.75 2.00 Cracker, 2 corrugated rolls . . . 2.00 2.00
Feeds—Edger . . . . . . . . . . . . . 1.25 1.50 Cracker Warmer—2 roll,
Feeds—Gang . . . . . . . . . . . . . 1.75 1.75 1 corrugated roll . . . . . . . . . 1.75 1.75
Occasional & Intermittent Service or Engine Feeds—Trimmer . . . . . . . . . . . 1.25 1.50 Extruders
Log Deck . . . . . . . . . . . . . . . . 1.75 1.75
Driven Applications Log Hauls—Incline, Well Type . 1.75 1.75
Continuous Screw Operation 1.50 1.50
Intermittent Screw Operation 1.75 1.75
Log Turning Devices . . . . . . . . 1.75 1.75
For multi-cylinder engine driven applications and all applications Planer Feed . . . . . . . . . . . . . . 1.25 1.50
Holding, Feed & Blend Mill— 2 Roll 1.25 1.25
Intensive Internal Mixers
operating intermittently up to 3 hours per day, continuously or Planer Tilting Hoists . . . . . . . . . 1.50 1.50 Batch Mixers . . . . . . . . . . . . 1.75 1.75
Rolls, Live, Off Bearing, Roll Cases 1.75 1.75
intermittently, require adjusted Service Factors. Determine the Sorting Table, Tipple Hoist . . . . 1.25 1.50
Continuous Mixers . . . . . . . 1.50 1.50
Mixing Mill—2 smooth rolls
normal Service Factor for the application from the 3 to 10 hours Transfers—Chain & Craneway . 1.50 1.75 (if corrugated rolls are used, use
per day column in Table 3 or 4. Next, in the first column of Table Tray Drives . . . . . . . . . . . . . . . 1.25 1.50 Cracker Warmer service factors) 1.50 1.50
Veneer Lathe Drives . . . . . Refer to Factory Refiner—2 roll . . . . . . . . . . . . 1.50 1.50
2 below, find this same Service Factor in bold face type. Then, to OIL INDUSTRY SEWAGE DISPOSAL
the right under the desired hours of service and prime mover, Chillers. . . . . . . . . . . . . . . . . . 1.25 1.50 Bar Screens. . . . . . . . . . . . . . . 1.00 1.25
Oil Well Pumping . . . . . . . Refer to Factory
locate the converted Service Factor. Paraffin Filter Press . . . . . . . . . 1.25 1.50
Chemical Feeders . . . . . . . . . . 1.00 1.25
Collectors . . . . . . . . . . . . . . . . 1.00 1.25
For example, from Table 4, the Service Factor is 1.25 for a heavy Rotary Kilns. . . . . . . . . . . . . . . 1.25 1.50 Dewatering Screens . . . . . . . . . 1.25 1.50
PAPER MILLS H Scum Breakers . . . . . . . . . . . . 1.25 1.50
duty belt conveyor. From Table 2, for the same application the Agitator (Mixer) . . . . . . . . . . . . . . . 1.50 Slow or Rapid Mixers . . . . . . . . 1.25 1.50
following are the Service Factors for various conditions. Agitator for Pure Liquids. . . . . . . . . 1.25 Thickeners . . . . . . . . . . . . . . . 1.25 1.50
Barking Drums, Barkers—Mech. . . . 2.00 Vacuum Filters . . . . . . . . . . . . 1.25 1.50
1. Engine driven (multi-cylinder): 3 to 10 hours per day; use 1.50 Beater . . . . . . . . . . . . . . . . . . . . . 1.50 SUGAR INDUSTRY
2. Engine driven (multi-cylinder): over 10 hours per day; use 1.75. Breaker Stack . . . . . . . . . . . . . . . . 1.25 Cane Knives, Crushers. . . . . . . . . . 1.50
t Calender . . . . . . . . . . . . .
3. Motor driven (electric): up to 3 hours per day, use 1.00. ... 1.25 Mills (low speed end) . . . . . . . . 1.75 1.75
Chipper . . . . . . . . . . . . . . . . . . . . 2.00 TEXTILE INDUSTRY
Chip Feeder . . . . . . . . . . . . . . . . . 1.50 Batchers, Calenders. . . . . . . . . 1.25 1.50
Coating Rolls ... 1.25 Card Machines . . . . . . . . . . . . 1.25 1.50
Conveyors— Dry Cans, Dryers . . . . . . . . . . . 1.25 1.50
Table 2 — Service Factor Conversions Chip, Bark, Chemical . . . . . . . . 1.25 Dyeing Machinery . . . . . . . . . . 1.25 1.50
Log (incl. Slab) . . . . . . . . . . . . . 2.00 Knitting Machinery . . . . . . Refer to Factory
3 to 10 Hours Intermittent – Up to Couch Rolls . . . . . . . . . . . . . . . . . 1.25
Table 3 or 4 Over 10 Hours per Day Cutter. . . . . . . . . . . . . . . . . . . . . . 2.00
Looms, Mangles, Nappers, Pads 1.25 1.50
3 to 10 Hour per Day 3 Hours per Day † Cylinder molds . . . . . . . . . . . . . . . 1.25
Range Drives Refer to Factory
Slashers, Soapers, Spinners,
Service Multi-Cyl. Multi-Cyl. Multi-Cyl. t Dryers —
Tenter Frames, Washers,
Factor Engine ‡ Motor Motor Paper Mach. & Conveyor Type . . . 1.25
Engine ‡ Engine ‡ Embosser . . . . . . . . . . . . . . . . . 1.25
Winders . . . . . . . . . . . . . . . 1.25 1.50
WINDLASS . . . . . . . . . . . . . . Refer to Factory
1.00 (Class I) 1.25 1.25 1.50 .80 1.00
1.25 1.50 1.50 1.75 1.00 1.25 H Service Factors for paper mill applications are applied to the nameplate rating of
1.41 (Class II) 1.75 1.75 2.00 1.25 1.50 the electric drive motor at the motor rated base speed and are consistent with those
1.50 1.75 1.75 2.00 1.25 1.50 shown in TAPPI standards.
1.75 2.00 2.00 2.25 1.50 1.75 t Anti-friction bearings only.
2.00 (Class III) 2.25 2.25 2.50 1.75 2.00
l A service factor of 1.00 may be applied at base speed of a super calender
† For applications operating one half hour or less per day and applications driven by operating over a speed range of part constant hp and part constant torque where
single cylinder engines, refer to Factory. the constant hp speed range is greater than 1.5 to 1. A service factor of 1.25 is
‡ These service factors are based on the assumption that the system is free from
applicable to super calenders operating at constant torque over the entire speed
serious critical and torsional vibrations and that maximum momentary or starting range or where the constant hp speed range is less than 1.5 to 1.
loads do not exceed 200% of the normal load.

7 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Table 4 — Service Factors Listed by Application
For electric motor, steam turbine or hydraulic motor drives . . . recommendations are MINIMUM and normal conditions are assumed.

Service Service Service Service

Application 3 to Over Application 3 to Over Application 3 to Over Application 3 to Over
10 10 10 10 10 10 10 10
Hour Hour Hour Hour Hour Hour Hour Hour
AGITATORS sCONVEYORS—Uniformly sHOISTS PUMPS
Pure Liquids . . . . . . . . . . . . . . 1.00 1.25 loaded or Fed: Heavy Duty . . . . . . . . . . . . . . . 1.75 2.00 Centrifugal . . . . . . . . . . . . . . . 1.00 1.25
Apron, Assembly, Belt, Bucket, Medium Duty . . . . . . . . . . . . . 1.25 1.50
Liquids & Solids. . . . . . . . . . . . 1.25 1.50 Proportioning . . . . . . . . . . . . . 1.25 1.50
Liquids-Variable Density . . . . . . 1.25 1.50 Chain, Flight, Oven, Screw . 1.00 1.25 Skip Hoist . . . . . . . . . . . . . . . . 1.25 1.50 Reciprocating
sCONVEYORS—Heavy Duty, INDUCED DRAFT FANS . . 1.25 1.50 Single Act., 3 or more Cyl . . 1.25 1.50
APRON CONVEYORS Not Uniformly Fed
Uniformly Loaded or Fed . . . . . 1.00 1.25 Apron, Assembly, Belt, Bucket, KILNS . . . . . . . . . . . . . See Mills, Rotary Double Act., 2 or more Cyl.. 1.25 1.50
Heavy Duty . . . . . . . . . . . . . . . 1.25 1.50 Chain, Flight, Oven, Screw . . 1.25 1.50 LAUNDRY WASHERS . . . . . 1.25 1.50 Single Act., 1 or 2 Cyl . . Refer to Factory
Double Acting, 1 Cyl . . . Refer to Factory
APRON FEEDERS . . . . . . . . 1.25 1.50 CONVEYORS—Severe Duty LAUNDRY TUMBLERS. . . . . 1.25 1.50
Rotary: Gear, Lobe, Vane. . . . . 1.00 1.25
ASSEMBLY CONVEYORS Live Roll . . . . . . . . . . . . . . Refer to Factory LINE SHAFTS
PUNCH PRESSES (Gear
Uniformly Loaded or Fed . . . . . 1.00 1.25 Reciprocating Shaker . . . . . . . . 1.75 2.00 Driving Processing Equipment. . 1.25 1.50
Other Line Shafts, Light . . . . . . 1.00 1.25 Driven) . . . . . . . . . . . . . . 1.75 2.00
Heavy Duty . . . . . . . . . . . . . . . 1.25 1.50 COOKERS (Brewing &
LIVE ROLL CONVEYORS .Refer to Factory RECIPROCATING
BALL MILLS See Mills, Rotary Distilling), (food) . . . . 1.00 1.25
BARGE HAUL PULLERS . . . . 1.75 2.00 Conveyors & Feeders . . . . . . 1.75 2.00
COOLING TOWER FANS .Refer to Factory LOBE BLOWERS OR
BARKING COMPRESSORS . . . . . . . 1.25 1.50 RECIPROCATING
sCRANES COMPRESSORS
Drums (Coupling Connected) . . . . . 2.00 Dry Dock Cranes, Main Hoist,
Mechanical. . . . . . . . . . . . . . . . . . 2.00 LOG HAULS (Lumber) Multi-Cylinder . . . . . . . . . . . . . 1.25 1.50
Bridge and Trolley Travel . . Refer to Factory Incline-well Type . . . . . . . . . . . 1.75 1.75
BAR SCREENS (Sewage). . . 1.00 1.25 Single Cylinder . . . . . . . . . . . . 1.75 2.00
CRUSHERS LOOMS (Textile) . . . . . . . . 1.25 1.50 ROD MILLS . . . . . . . . . . . .See Mills, Rotary
BATCHERS (Textile) . . . . . . 1.25 1.50 Ore or Stone . . . . . . . . . . . . . 1.75 2.00
LUMBER INDUSTRY . . . . . . See Table 3 ROTARY
BELT CONVEYORS Sugar . . . . . . . . . . . . . . . . . . . . . . 1.50 Pumps . . . . . . . . . . . . . . . . . . 1.00 1.25
Uniformly Loaded or Fed . . . . . 1.00 1.25 MACHINE TOOLS
DEWATERING SCREENS Screens (Sand or Gravel) . . . . . 1.25 1.50
Heavy Duty . . . . . . . . . . . . . . . 1.25 1.50 Auxiliary Drives . . . . . . . . . . . . 1.00 1.25
(Sewage) . . . . . . . . . . . . 1.25 1.50 RUBBER & PLASTICS
Bending Rolls . . . . . . . . . . . . . 1.25 1.50
BELT FEEDERS . . . . . . . . . . 1.25 1.50 DISC FEEDERS . . . . . . . . . . 1.00 1.25 Main Drives . . . . . . . . . . . . . . 1.25 1.50 INDUSTRIES . . . . . . . . . . See Table 3
BENDING ROLLS (Machine) 1.25 1.50 DISTILLING . . . . . . . . . . . . See Table 3 Notching Press (Belted) . . . Refer to Factory SAND MULLERS . . . . . . . . . 1.25 1.50
BLOWERS DOUBLE ACTING PUMPS Plate Planers . . . . . . . . . . . . . . 1.75 2.00
SCREENS
Centrifugal . . . . . . . . . . . . . . . 1.00 1.25 2 or more Cylinders. . . . . . . . . 1.25 1.50 Punch Press (Geared) . . . . . . . 1.75 2.00
Air Washing . . . . . . . . . . . . . . 1.00 1.25
Lobe . . . . . . . . . . . . . . . . . . . 1.25 1.50 Single Cylinder . . . . . . . . . Refer to Factory Tapping machines . . . . . . . . . . 1.75 2.00
Rotary—Sand or Gravel. . . . . . 1.25 1.50
Vane . . . . . . . . . . . . . . . . . . . 1.00 1.25 DOUGH MIXER (Food) . . . . 1.25 1.50 MANGLE (Textile) . . . . . . . 1.25 1.50 Traveling Water Intake . . . . . . . 1.00 1.25
BOTTLING MACHINERY. . . 1.00 1.25 DRAW BENCH (Metal Mills) MASH TUBS (Brewing & SCREW CONVEYORS
BREWING . . . . . . . . . . . . . See Table 3 Carriage & Main Drive . . 1.25 1.50 Distilling) 1.00 1.25 Uniform . . . . . . . . . . . . . . . . . 1.00 1.25
BRICK PRESS (Clay Working) 1.75 2.00 MEAT GRINDERS (Food) 1.25 1.50 Heavy Duty or Feeder . . . . . . . 1.25 1.50
DREDGES . . . . . . . . . . . See Table 3
BRIQUETTE MACHINES DRY DOCK CRANES . . . Refer to Factory METAL MILLS SCUM BREAKERS (Sewage) 1.25 1.50
(Clay Working). . . . . . . . 1.75 2.00 DRYERS & COOLERS (Mills, Draw Bench Carriages & SEWAGE DISPOSAL. . . . . . See Table 3
Rotary) . . . . . . . . . . . . . . . . . 1.50 Main Drives. . . . . . . . . . . . . 1.25 1.50 SHAKER CONVEYORS . . . . 1.75 2.00
BUCKET
Pinch, Dryer & Scrubber
Conveyors Uniform . . . . . . . . . 1.00 1.25 DYEING MACHINERY SHEETERS (Rubber) . . . . . . . . 1.50
Rolls, Reversing . . . . . . . Refer to Factory
Conveyors Heavy Duty. . . . . . . 1.25 1.50 (Textile) . 1.25 1.50 Slitters . . . . . . . . . . . . . . . . . . 1.25 1.50 SINGLE ACTING PUMP
Elevators Continuous . . . . . . . . 1.00 1.25
ELEVATORS Table Conveyors, Non-Reversing I or 2 Cylinders. . . . . . . . . Refer to Factory
Elevators Uniform . . . . . . . . . . 1.00 1.25
Bucket-Uniform Lood . . . . . . . . 1.00 1.25 Group Drives. . . . . . . . . . . . 1.25 1.50 3 or more Cylinders. . . . . . . . . 1.25 1.50
Elevators Heavy Duty . . . . . . . . 1.25 1.50
Bucket-Heavy Duty . . . . . . . . . 1.25 1.50 Non-Reversing Individual sSKI TOWS & LIFTS . . . . . . . Not Approved
CALENDERS Bucket-Continuous . . . . . . . . . 1.00 1.25 Drives . . . . . . . . . . . . . . . . 1.75 2.00 sSKIP HOIST . . . . . . . . . . . . 1.25 1.50
Rubber and Plastic . . . . . . See Table 3 Centrifugal Discharge . . . . . . . 1.00 1.25 Reversing . . . . . . . . . . . Refer to Factory SLAB PUSHERS. . . . . . . . . . 1.25 1.50
Textile . . . . . . . . . . . . . . . . . . 1.25 1.50 sEscalators . . . . . . . . . . . . Not Approved Wire Drawing & Flattening
sFreight . . . . . . . . . . . . . . SLITTERS (Metal) . . . . . . . . 1.25 1.50
CANE KNIVES . . . . . . . . . . . . . 1.50 Not Approved Machines . . . . . . . . . . . . . . 1.25 1.50
Gravity Discharge . . . . . . . 1.00 1.25 Wire Winding Machines. . . . . . 1.25 1.50 SLUDGE COLLECTORS
CAN FILLING MACHINES . 1.00 1.25
sMan Lifts, Passenger . . . . . Not Approved MILLS, ROTARY
(Sewage) . . . . . . . . . . . . 1.00 1.25
CARD MACHINES (Textile). 1.25 1.50
EXTRUDERS Ball and Rod Mills SOAPERS (Textile) . . . . . . . 1.25 1.50
CAR DUMPERS. . . . . . . . . . 1.75 2.00 (Plastic & Rubber) . . . . . . See Table 3 with Spur Ring Gear . . . . . . . . . . 2.00 SPINNERS (Textile). . . . . . . 1.25 1.50
CAR PULLERS. . . . . . . . . . . 1.25 1.50 FANS with Helical Ring Gear. . . . . . . . 1.50 STEERING GEARS . . . Refer to Factory
CEMENT KILNS . . See Mills, Rotary Centrifugal . . . . . . . . . . . . . . . 1.00 1.25 Direct Connected . . . . . . . . . . . 2.00 STOKERS . . . . . . . . . . . . . . 1.00 1.25
CENTRIFUGAL Cooling Towers . . . . . . . . Refer to Factory Cement Kilns, Dryers & Coolers,
Blowers, Compressors, Pebble, Plain & Wedge Bar Mills . . . 1.50 STONE CRUSHERS. . . . . . . 1.75 2.00
Forced Draft . . . . . . . . . . . . . . . . . 1.25
Discharge Elevators, Induced Draft . . . . . . . . . . . . . 1.25 1.50 Tumbling Barrels . . . . . . . . . . . 1.75 2.00 SUGAR INDUSTRY . . . . See Table 3
Fans or Pumps. . . . . . . . . . . 1.00 1.25 Large (Mine, etc.) . . . . . . . . . . 1.25 1.50 MIXER (Also see Agitators) TABLE CONVEYORS
CHAIN CONVEYORS Large lndustrial . . . . . . . . . . . . 1.25 1.50 Concrete, Cont. & lnt. . . . . . . . 1.25 1.50 (Non-Reversing) . . . . . .
Uniformly Loaded or Fed . . . . . 1.00 1.25 Light (Small Diameter) . . . . . . . 1.00 1.25 Constant Density . . . . . . . . . . . 1.00 1.25 Group Drives . . . . . . . . . . . . . 1.25 1.50
Heavy Duty . . . . . . . . . . . . . . . 1.25 1.50 FEEDERS Variable Density . . . . . . . . . . . 1.25 1.50 Individual Drives . . . . . . . . . . . 1.75 2.00
CHEMICAL FEEDERS Apron, Belt . . . . . . . . . . . . . . . 1.25 1.50 NAPPERS (Textile) . . . . . . . 1.25 1.50 Reversing . . . . . . . . . . . . . Refer to Factory
(Sewage) . . . . . . . . . . . . 1.00 1.25 Disc . . . . . . . . . . . . . . . . . . . . 1.00 1.25 OIL INDUSTRY . . . . . . . See Table 3 TENTER FRAMES (Textile). . 1.25 1.50
Reciprocating . . . . . . . . . . . . . 1.75 2.00 TEXTILE INDUSTRY . . . . . . See Table 3
CLARIFIERS . . . . . . . . . . . . 1.00 1.25 ORE CRUSHERS . . . . . . . . . 1.75 2.00
Screw . . . . . . . . . . . . . . . . . . . 1.25 1.50
CLASSIFIERS . . . . . . . . . . . 1.25 1.50 OVEN CONVEYORS THICKENERS (Sewage) . . . 1.25 1.50
FLIGHT CONVEYORS
CLAY WORKING . . . . . . . . See Table 3 Uniform . . . . . . . . . . . . . . . . . 1.00 1.25 Uniform . . . 1.00 1.25 TUMBLING BARRELS . . . . . 1.75 2.00
COLLECTORS (Sewage) . . . 1.00 1.25 Heavy. . . . . . . . . . . . . . . . . . . 1.25 1.50 Heavy Duty . 1.25 1.50 VACUUM FILTERS (Sewage) 1.25 1.50
FOOD INDUSTRY . . . . . . . See Table 3 PAPER MILLS. . . . . . . . . See Table 3 VANE BLOWERS . . . . . . . . 1.00 1.25
COMPRESSORS
Centrifugal . . . . . . . . . . . . . . . 1.00 1.25 sPASSENGER ELEVATOR . . Not Approved
GENERATORS (Not WINCHES (Dredges) . . . . . 1.25 1.50
Lobe . . . . . . . . . . . . . . . . . . . 1.25 1.50 Welding) . . . . . . . . . . . . 1.00 1.25 PEBBLE MILLS. . . . . . . . . . . . . . 1.50
Reciprocating WINDERS (Textile) . . . . . . . 1.25 1.50
GRAVITY DISCHARGE PLATE PLANERS . . . . . . . . . 1.75 2.00 WINDLASS . . . . . . . . . . . .Refer to Factory
Multi-Cylinder. . . . . . . . . . . 1.25 1.50 PRINTING PRESSES . . Refer to Factory
Single-Cylinder . . . . . . . . . . 1.75 2.00 ELEVATORS . . . . . . . . . . 1.00 1.25 WIRE
HAMMER MILLS . . . . . . . . . 1.75 2.00 PROPORTIONING PUMPS . 1.25 1.50 Drawing Machines . . . . . . . . . 1.25 1.50
CONCRETE MIXERS
PUG MILLS (Clay). . . . . . . . 1.25 1.50 Winding Machines. . . . . . . . . . 1.25 1.50
Continuous. . . . . . . . . . . . . . . 1.25 1.50
Intermittent . . . . . . . . . . . . . . . 1.25 1.50 PULLERS (Barge Haul) . . . . 1.75 2.00

s Selection of Rexnord products for applications whose primary purpose is the transportation of people is not approved. This includes such applications as freight or passenger elevators,
escalators, man lifts, work lift platforms and ski tows and ski lifts. If the primary purpose of the application is material conveyance and occasionally people are transported, the
Factory warranty may remain in effect provided the design load conditions are not exceeded and certification to the appropriate safety codes and load conditions has been
obtained by the system designer or end user from the appropriate enforcement authorities.
Contact your local Rexnord-Falk district office for proper selection of a Falk RAM mixer drive.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 8

Load Classification Factors
Table 5 — Class/Service Factor Conversion Table Table 6 — Load Classification Factors
Class Service Factor Listed by Industry
I 1.00 (For electric motor, steam turbine or hydraulic motor drives . . .
II 1.41 recommendations are MINIMUM and normal conditions are assumed.)
III 2.00
Service Service
Industry 3 to Over Industry 3 to Over
Load Classification Factors 10 10 10 10
Hour Hour Hour Hour
Drives may be selected by Service Factor or Load Classification. BREWING & DISTILLING PAPER MILLS
Selections may vary, so compare Service Factor against Load Bottling Machinery. . . . . . . . . . I II Agitator (Mixer) . . . . . . . . . . . . II II
Classification. Selecting the lowest Service Factor from Table 5 will Brew Kettles, Continuous Duty . — II Barker—Auxiliaries—Hyd . . . . . — III
Can Filling machines . . . . . . . . I II Barker, Mechanical . . . . . . . . . — III
result in the most economical selection. Cookers—Continuous Duty . . . — II Barking Drum . . . . . . . . . . . . . — III
Mash Tubs—Continuous Duty . — II Beater & Pulper . . . . . . . . . . . . — II
A drive is rated to a specific application by the use of Load Scale Hoppers—Frequent Starts II II Bleacher . . . . . . . . . . . . . . . . . — II
Classification Factors. Each application has its own conditions and CLAY WORKING INDUSTRY t Calenders . . . . . . . . . . . . · · — II
t Calendars—Super . . . . . . · · — II
operating requirements. These have been analyzed and Brick Press . . . . . . . . . . . . . . . III III
Converting Mach.—Except
Briquette Machines . . . . . . . . . III III
catalogued. Numerical values, based on field experience, have Clay Working Machinery . . . . . II II Cutters-Platers . . . . . . . . . . . — II

been assigned to these classifications for intermittent service of 3 to Pug Mills . . . . . . . . . . . . . . . . II II Conveyors . . . . . . . . . . . . . . . — II
DISTILLING . . . . . . . . . . . . See Brewing Couch . . . . . . . . . . . . . . . . . . — II
10 hours per day and for service over 10 hours per day and also Cutters, Platers . . . . . . . . . . . . — III
DREDGES
for the type of prime mover. . .electric motor or engine. Values for Cable Reels . . . . . . . . . . . . . . II
Cylinders . . . . . . . . . . . . . . . .
— t Dryers . . . . . . . . . . . . . . . · ·
— II
— II
most applications are listed by Application on Page 9, Table 7 and Conveyors . . . . . . . . . . . . . . . II II Felt Stretchers . . . . . . . . . . . . . — II
Cutter Head Drives . . . . . . . . . III III
by Industry at right, Table 6. Refer unlisted applications to the Jig Drives . . . . . . . . . . . . . . . . III III
Felt Whippers . . . . . . . . . . . . . — III
Jordans . . . . . . . . . . . . . . . . . — II
Factory. Maneuvering Winches . . . . . . . II — Log Haul . . . . . . . . . . . . . . . . — III
Pumps . . . . . . . . . . . . . . . . . . II III Presses . . . . . . . . . . . . . . . . . . — II
Since most industrial applications are electric motor driven, Load Screen Drives . . . . . . . . . . . . . III III Pulper (Continuous) . . . . . . . . . — II
Classification Factors are based on the use of electric motors. Stackers . . . . . . . . . . . . . . . . . II II Repulper (Heavy Shock) . . . . . . — III
Utility Winches . . . . . . . . . . . . II — Stock Chests . . . . . . . . . . . . . .
These factors can be easily converted to engine-drive factors as — II
FOOD INDUSTRY Suction Rolls . . . . . . . . . . . . . . — II
outlined in Table 2, Page 6. Beet Slicers . . . . . . . . . . . . . . . II II Washers & Thickeners . . . . . . . — II
Bottling, Can Filling Machine . . I II Winders . . . . . . . . . . . . . . . . . — II
Load Classification Factors are based on the assumption that the Cereal Cookers. . . . . . . . . . . . I II RUBBER INDUSTRY
system is free of dynamic vibrations, as explained in the warranty Dough Mixers, Meat Grinders . II II Mixer . . . . . . . . . . . . . . . . . . . III III
LUMBER INDUSTRY Rubber Calender. . . . . . . . . . . II II
section, and that maximum momentary or starting loads do not Barkers—Spindle Feed. . . . . . . II III Rubber Mill (2 or more) . . . . . . II II
exceed 200% of the rated load. Refer applications subject to Barkers—Main Drive . . . . . . . . III III Sheeter. . . . . . . . . . . . . . . . . . II II
Carriage Drive . . . . . . . . . Refer to Factory Tire Building Machines . . . Refer to Factory
repetitive shocks and applications where exceedingly high energy Conveyors Tire, Tube Press Openers. . Refer to Factory
load must be absorbed, as when stalling, to the Factory for special Burner . . . . . . . . . . . . . . . . II III Tubers & Strainers . . . . . . . . . . II II
consideration. Main or Heavy Duty . . . . . . II III SEWAGE DISPOSAL
Main Log . . . . . . . . . . . . . . III III Aerators . . . . . . . . . . . . . . Refer to Factory
Re-Saw Merry-Go-Round. . . II III Bar Screens. . . . . . . . . . . . . . . I II
Slab . . . . . . . . . . . . . . . . . . III III Chemical Feeders . . . . . . . . . . I II
Transfer . . . . . . . . . . . . . . . II III Collectors . . . . . . . . . . . . . . . . I II
Chains—Floor . . . . . . . . . . . . II III Dewatering Screens . . . . . . . . . II II
Chains—Green. . . . . . . . . . . . II III Grit Collectors . . . . . . . . . . . . I II
Cut-Off Saws—Chain & Drag . II III Scum Breakers . . . . . . . . . . . . II II
Debarking Drums . . . . . . . . . . III III Slow or Rapid Mixers . . . . . . . . II II
Feeds—Edger . . . . . . . . . . . . . II III Sludge Collectors . . . . . . . . . . I II
Feeds—Gang . . . . . . . . . . . . . III III Thickeners . . . . . . . . . . . . . . . II II
Feeds—Trimmer . . . . . . . . . . . II III Vacuum Filters . . . . . . . . . . . . II II
Log Deck . . . . . . . . . . . . . . . . III III
Log Hauls—Incline, Well Type . III III TEXTILE INDUSTRY
Log Turning Devices . . . . . . . . III III Batchers, Calenders. . . . . . . . . II II
Planer Feed . . . . . . . . . . . . . . II III Card Machines . . . . . . . . . . . . II II
Planer Tilting Hoists . . . . . . . . . II III Cloth Finishing Machines,
Rolls—Live—Off Bearing— Calenders, Dryers, Pads, II II
III III Tenters, Washers) . . . . . . . .
Roll Cases . . . . . . . . . . . . . .
Sorting Table, Tipple Hoist . . . . II III Dry Cans . . . . . . . . . . . . . . . . II II
Transfers—Chain & Craneway . II III Dyeing Machinery . . . . . . . . . . II II
Tray Drives . . . . . . . . . . . . . . . II III Knitting Machinery . . . . . . Refer to Factory
Looms, Mangles, Nappers . . . . II II
OIL INDUSTRY Range Drives . . . . . . . . . . Refer to Factory
Chillers. . . . . . . . . . . . . . . . . . II II Soapers, Spinners . . . . . . . . . . II II
Oil Well Pumping . . . . . . . Refer to Factory Tenter Frames . . . . . . . . . . . . .
II II
Paraffin Filter Press . . . . . . . . . II II Winders . . . . . . . . . . . . . . . . . II II
Rotary Kilns. . . . . . . . . . . . . . . II II Yarn Preparatory Machinery,
II II
(Cards, Spinners, Slashers) . .
t Anti-friction bearings only.

9 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Table 7 — Load Classification Factors Listed by Application
(For electric motor, steam turbine or hydraulic motor drives . . . recommendations are MINIMUM and normal conditions are assumed.)

Service Service Service Service

Application 3 to Over Application 3 to Over Application 3 to Over Application 3 to Over
10 10 10 10 10 10 10 10
Hour Hour Hour Hour Hour Hour Hour Hour
AERATORS Refer to Factory CONCRETE MIXERS FORMING MACHINES PUG MILLS (Clay). . . . . . . . II II
III III
AGITATORS Continuous . II II (Metal Mills) . . . . . . . . .. PULLERS (Barge Haul) . . . . III III
Paper Mills . . . . . . . . . . . . . . . II II Intermittent . I — GENERATORS (Not I II PUMPS
Pure Liquids . . . . . . . . . . . . . . I II CONVERTING MACHINES Welding) . . . . . . . . . . .. Centrifugal . . . . . . . . . . . . . . . I II
— II
Liquids & Solids. . . . . . . . . . . . II II (Paper). . GRAVITY DISCHARGE Proportioning . . . . . . . . . . . . . II II
Liquids-Variable Density . . . . . . II II sCONVEYORS—Uniformly I II
ELEVATORS . . . . . . . . .. Reciprocating
APRON CONVEYORS Loaded or Fed: Single Act., 3 or more Cyl.. . II II
Apron, Assembly, Belt, Bucket, GRIT COLLECTORS
Uniformly Loaded or Fed . . . . . I II I II I II Double Act., 2 or more Cyl.. II II
Chain, Flight, Oven, Screw . . (Sewage) . . . . . . . . . . . .
Heavy Duty . . . . . . . . . . . . . . . II II Single Act., 1 or 2 Cyl.. . Refer to Factory
sCONVEYORS—Heavy Duty, HAMMER MILLS . . . . . . . . . III III Rotary: Gear, Lobe, Vane. . . . .
APRON FEEDERS . . . . . II II I II
Not Uniformly Fed INDUCED DRAFT FANS . . . II II
ASSEMBLY CONVEYORS Apron, Assembly, Belt, Bucket, PUNCH PRESSES
II II III III
Uniformly Loaded or Fed . . . . . Chain, Flight, Oven, Screw . . KILNS (Mills, Rotary) . . . . . II II (Gear Driven) . . . . . . . . .
I II
Heavy Duty . . . . . . . . . . . . . . . II II Live Roll (Package). . . . . I II Cement . . . . . . . . . . . . . . Refer to Factory RECIPROCATING
Reciprocating, Shaker . . III III
BALL MILLS . . . . . . . . . . . . III III III III LAUNDRY WASHERS . . . . . II II Conveyors & Feeders . . .
BARGE HAUL PULLERS. . . . III III COOKERS (Brewing & LAUNDRY TUMBLERS . . . . II II RECIPROCATING
I II
Distilling), (food) . . . . LINE SHAFTS COMPRESSORS
BARKING COOLING TOWER FANS Refer to Factory Heavy Shock Load. . . . . . . . . . III III MultI-Cylinder . . . . . . . . . . . . . II II
Drums . . . . . . . . . . . . . . . . . . — III
COUCH (Paper). . . . . . . — II Moderate Shock Load . . . . . . . II II Single Cylinder . . . . . . . . . . . . III III
Hydraulic Auxiliaries . . . . . . . . — III
Mechanical. . . . . . . . . . . . . . . — III sCRANES & HOISTS Uniform Load . . . . . . . . . . . . . I II ROD MILLS . . . . . . . . . . . . III III
Main Hoists LIVE ROLL CONVEYORS .
BAR SCREENS (Sewage) . . l ll ROTARY
Heavy Duty. . . . . . . . . . . . . III III Package . . . . . . . . . . . . . . . . . I II
ll ll Pumps: Gear, Lobe, Vane . . . . I II
BATCHERS (Textile). . . . . . Medium Duty . . . . . . . . . . . II II LOBE BLOWERS OR II II Screens (Sand or Gravel) . . . . . II II
BEATERS & PULPERS Reversing . . . . . . . . . . . . . . . . II II COMPRESSORS . . . . . . .
— ll Skip Hoists . . . . . . . . . . . . . . . II II RUBBER & PLASTICS
(Paper) . . . . . . . . . . . . . LOG HAULS (Paper & See Table 5
Trolley Drive . . . . . . . . . . . . . . II II III III INDUSTRIES . . . . . . . . . .
BELT CONVEYORS Bridge Drive . . . . . . . . . . . . . . Lumber) . . . . . . . . . . . . . SAND MULLERS . . . . . Refer to Factory
II II
Uniformly Loaded or Fed . . . . . I II LOOMS (Textile) . . . . . . . . II II
CRUSHERS SCREENS
Heavy Duty . . . . . . . . . . . . . . . II II
Ore or Stone . . . . . . . . . . . . . III III LUMBER INDUSTRY . . . . . . See Table 5 Air Washing . . . . . . . . . . . . . . I II
BELT FEEDERS . . . . . . . . . . II II Rotary—Sand or Gravel. . . . . . II II
CUTTERS (Paper) . . . . . . . . — III MACHINE TOOLS
BENDING ROLLS (Machine) II II Auxiliary Drives . . . . . . . . . . . . Traveling Water Intake . . . . . . . I II
CYLINDERS (Paper) . . . . . . — II I II
BLEACHERS (Paper) . . . . . . — II Bending Rolls . . . . . . . . . . . . . II II SCREW CONVEYORS
DEWATERING SCREENS Main Drives . . . . . . . . . . . . . . II II Uniform . . . . . . . . . . . . . . . . . I II
BLOWERS II II
(Sewage) . . . . . . . . . . . . Notching Press (Belted) . . . Refer to Factory Heavy Duty or Feeder . . . . . . . II II
Centrifugal . . . . . . . . . . . . . . . I II
Lobe . . . . . . . . . . . . . . . . . . . II II DISC FEEDERS . . . . . . . . . . I II Plate Planers . . . . . . . . . . . . . . III III SCUM BREAKERS (Sewage). II II
Vane . . . . . . . . . . . . . . . . . . . I II DISTILLING See Table 5 Punch Press (Geared) . . . . . . . III III SEWAGE DISPOSAL . . . . . . See Table 5
I II Tapping machines . . . . . . . . . . III III
BOTTLING MACHINERY. . . DOUBLE ACTING PUMPS SHAKER CONVEYORS . . . . III III
2 or more Cylinders. . . . . . . . . II II MANGLE (Textile) . . . . . . . II II
BREWING . . . . . . . . . . . See Table 5 SHEETERS (Rubber) . . . . . . II II
Single Cylinder . . . . . . . . . Refer to Factory MASH TUBS (Brewing &
BRICK PRESS (Clay Working) III III — II SINGLE ACTING PUMP
DOUGH MIXER (Food) . . . . II II Distilling) . . . . . . . . . . . .
BRIQUETTE MACHINES 1 or 2 Cylinders . . . . . . . . Refer to Factory
III III DRAW BENCH (Metal Mills) MEAT GRINDERS (Food) . . II II
(Clay Working). . . . . . . . III III 3 or more Cylinders. . . . . . . . . II II
Carriage & Main Drive . . METAL MILLS
BUCKET SKI TOWS & LIFTS . . . . . . Not Approved
DREDGES . . . . . . . . . . . See Table 5 Draw Bench Carriages & sSKIP HOIST . . . . . . . . . . . . II II
Conveyors Uniform . . . . . . . . . I II III III
Main Drives. . . . . . . . . . . . .
Conveyors Heavy Duty. . . . . . . II II DRYERS & COOLERS SLAB PUSHERS. . . . . . . . . . II II
II II Forming Machines. . . . . . . . . . III III
Elevators Continuous . . . . . . . . I II (Mills, Rotary) . . . . . . . . . SLITTERS (Metal) . . . . . . . . II II
Pinch, Dryer & Scrubber
Elevators Uniform . . . . . . . . . . I II DYEING MACHINERY II II Rolls, Reversing . . . . . . . Refer to Factory SLUDGE COLLECTORS
Elevators Heavy Duty . . . . . . . . II II (Textile) . . . . . . . . . . . . . I II
Slitters . . . . . . . . . . . . . . . . . . II II (Sewage) . . . . . . . . . . . .
CALENDERS ELEVATORS Table Conveyors . . . . . . . . . . .
Rubber . . . . . . . . . . . . . . . . . . SOAPERS (Textile) . . . . . . . II II
II II Bucket-Uniform Load . . . . . . . . I II Non-Reversing . . . . . . . . . . II III
Textile . . . . . . . . . . . . . . . . . . II II Reversing . . . . . . . . . . . Refer to Factory SPINNERS (Textile). . . . . . . II II
Bucket-Heavy Duty . . . . . . . . . II II
CANE KNIVES . . . . . . . . . . II II Bucket-Continuous . . . . . . . . . I II Wire Drawing & Flattening STEERING GEARS . . . . . . . II II
II III
CAN FILLING MACHINES . I II Centrifugal Discharge . . . . . . . I II Machines . . . . . . . . . . . . . . STOCK CHESTS (Paper) . . . — II
Escalators . . . . . . . . . . . . Not Approved Wire Winding Machines. . . . . . II II
CARD MACHINES (Textile). II II STOKERS . . . . . . . . . . . . . . I II
Freight . . . . . . . . . . . . . . Not Approved MILLS, ROTARY
CAR DUMPERS. . . . . . . . . . III — Gravity Discharge . . . . . . . . . . I II STONE CRUSHERS. . . . . . . III III
Ball, Pebble, Rod. . . . . . . . . . . III III
CAR PULLERS. . . . . . . . . . . II — Man Lifts, Passenger . . . . . Not Approved Cement Kilns . . . . . . . . . . Refer to Factory SUCTION ROLLS (Paper) . . — II
CEMENT KILNS . . . . . Refer to Factory FANS Coolers, Dryers, Kilns . . . . . . . II II TABLE CONVEYORS
CENTRIFUGAL Centrifugal . . . . . . . . . . . . . . . II II Tumbling Barrels . . . . . . . . . . III III (Metal Mills)
Blowers, Compressors, Cooling Towers . . . . . . . . Refer to Factory MIXER (Also see Agitators) Non-Reversing . . . . . . . . . . . . III III
Discharge Elevators, I II Forced Draft . . . . . . . . . . . Refer to Factory Concrete—Continuous . . . . . . II II Reversing . . . . . . . . . . . . . Refer to Factory
Fans or Pumps. . . . . . . . . . . Induced Draft . . . . . . . . . . . . . II II Concrete—Intermittent. . . . . . . I — TENTER FRAMES (Textile). . II II
CHAIN CONVEYORS Large (Mine, etc.) . . . . . . . . . . II II Constant Density . . . . . . . . . . . I II
Large lndustrial . . . . . . . . . . . . TEXTILE INDUSTRY . . . . . . See Table 5
Uniformly Loaded or Fed . . . . . I II II II Variable Density . . . . . . . . . . . II II
Light (Small Diameter) . . . . . . . I II THICKENERS (Sewage) . . . II II
Heavy Duty . . . . . . . . . . . . . . . II II NAPPERS (Textile) . . . . . . . II II
FEEDERS TUMBLING BARRELS . . . . . III III
CHEMICAL FEEDERS OIL INDUSTRY . . . . . . . See Table 5
I II Apron, Belt . . . . . . . . . . . . . . . II II II II
(Sewage) . . . . . . . . . . . . VACUUM FILTERS (Sewage)
Disc . . . . . . . . . . . . . . . . . . . . I II ORE CRUSHERS . . . . . . . . . III III
CLARIFIERS . . . . . . . . . . . . I II VANE BLOWERS . . . . . . . . I II
Reciprocating . . . . . . . . . . . . . III III OVEN CONVEYORS
CLASSIFIERS . . . . . . . . . . . II II Screw . . . . . . . . . . . . . . . . . . . II II Uniform . . . . . . . . . . . . . . . . . I II WINCHES (Dredges) . . . . . II —
CLAY WORKING. . . . . . See Table 5 FELT Heavy Duty . . . . . . . . . . . . . . . II II WINDERS (Textile)
COLLECTORS (Sewage) . . . I II Stretchers (Paper) . . . . . . . . . . — II PAPER MILLS. . . . . . . . . See Table 5 Paper . . . . . . . . . . . . . . . . . . . — II
Whippers (Paper). . . . . . . . . . . — III Textile . . . . . . . . . . . . . . . . . . II II
COMPRESSORS PASSENGER ELEVATORS . . Not Approved
FLIGHT CONVEYORS WINDLASS. . . . . . . . . . . . . II II
Centrifugal . . . . . . . . . . . . . . . I II PEBBLE MILLS. . . . . . . . . . . III III
Lobe . . . . . . . . . . . . . . . . . . . II II Uniform . . . . . . . . . . . . . . . . . I II WIRE
PLATE PLANERS . . . . . . . . . III III
Reciprocating Heavy. . . . . . . . . . . . . . . . . . . II II Drawing Machines . . . . . . . . . II III
Multi-Cylinder. . . . . . . . . . . PRESSES PAPER . . . . . . . . . — II Winding Machines. . . . . . . . . . II II
II II FOOD INDUSTRY . . . . . . . See Table 5
Single-Cylinder . . . . . . . . . . III III PROPORTIONING PUMPS . II II

s See Page 7 for footnotes.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 10

Types FC & FZ Concentric Shaft
How to Select
Rating Table Method by Horsepower or Torque
Selection Information 1. From Table 4, Page 7 . . . Motor-driven, heavy duty belt
conveyor at 16 hours per day requires a 1.50 Service Factor.
Use the Horsepower or Torque Rating Method to make Type FC or
2. Calculate equivalent horsepower — 1.50 x 5 = 7.5 hp.
FZ concentric drive selections.
3. The headshaft speed must be multiplied by the chain drive to
NOTE: If you have an unusual application involving any of the obtain the gear drive output speed. (62 rpm x 2 = 126 rpm)
following conditions, refer to Pages 4 & 5. Input speed is 1750 rpm, output required is 125 rpm, resulting
• Excessive Overloads in a required nominal ratio of 13.95:1.
• Reversing Service 4. Refer to the Concentric Drive Horsepower Selection Table on Page
• Brake Equipped Applications 12 for ratios 1.50 through 31.39. Since the 1030F2 rates 9.91 hp,
• Oversized Prime Movers and is the first drive to exceed the equivalent hp requirement of 7.5
• Multi-Speed or Variable Speed Applications hp, the 1030F2 is the correct selection.
• Excessive Ambient Temperatures 5. Since the 9.91 mechanical rating is not shown in bold type, the
• Excessive Overhung Loads or Thrust Loads thermal rating exceeds the mechanical rating. (If it were in bold
• Product Modifications type, check the thermal rating on Page 14.)
• Non-Standard Motors or Prime Movers 6. Check the L.S. Shaft overhung. Calculate the overhung load
• Non-Horizontal Mounting Positions using the formula on Page 15.
How to Select by Horsepower 126,000 x 5 x 100
. x 108.
1. Determine Service Factor or Load Classification Factor — See = 1089 lb
5.0 x 125
Pages 6 & 7 or 8 & 9.
7. Check thrust load. For this example there is no thrust load.
2. Calculate Equivalent Horsepower — Multiply the actual
8. Dimensions and weights for this reducer are given on Page 20.
horsepower to be transmitted by the Service Factor.
9. Place the order for the reducer per instructions on Page 11.
3. Determine Drive Input Speed, Output Speed and Ratio.
4. Determine Drive Size — Select the nearest standard ratio from How to Select by Torque
the Horsepower Rating Tables starting on Page 12. Opposite
the high speed shaft rpm, and the desired ratio and output Simply follow the steps outlined in the horsepower method,
speed, trace right to a horsepower capacity equal to or in substituting torque values for horsepower.
excess of the equivalent horsepower calculated in Step 2. Read When the torque rating is shown in bold type, convert the actual
the size of drive at the top of the column. When the required required torque to horsepower and check against the thermal
input speed falls between two tabulated input speeds of a drive rating on Page 14. To convert, use the torque (lb.-in.) and speed
with the same number of gear reductions, interpolate to (rpm) at low speed shaft of the drive in the following formula:
determine drive rating. torque x output speed
5. Select Drive Configuration — Type FC or FZ. See Pages 20 & 21. hp =
63,000
6. Check Thermal Horsepower Ratings — When the horsepower
rating is shown in bold type, check the drive thermal rating on
Page 14. For ambient temperatures above 100°F (38°C) or
altitudes above sea level, refer to correction factors on Page 14.
If the thermal horsepower rating is less than the actual required
horsepower (without service factor), check thermal rating with
cooling fan. Where the thermal rating exceeds the actual
required horsepower, the drive selection is satisfactory.
However, when the cooling fan ratings are still not adequate,
consider the use of an electric fan or pump and cooler. Contact
the district sales office for ratings, selections and pricing.
7. Check Overhung Loads and Thrust Capacity — See Pages
15-18 for instructions.
8. Check Reducer Dimensions — Pages 20 thru 21.
9. Place the Order — See Page 11 for How to Order.
Example
Application: Belt conveyor, heavy duty, headshaft speed is 62 rpm.
Duty Cycle: 16 hours per day.
Driver: 5 hp, 1750 rpm electric motor.
Output: 5” pitch diameter sprocket with a 2:1 chain drive. The
sprocket is to be mounted 1.75” from the L.S. Shaft seal cage.

11 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FC & FZ Concentric Shaft
How to Order
Gear Drive Identification How to Order Type F Gear Drives
Drives in this selection guide, product nameplates and customer The following information is required to quote or ship to your
orders are identified through the following nomenclature. Use the requirements.
appropriate designations when placing an order or inquiring with
a Rexnord Sales Engineer. Drive
TYPE A. Size and Type from selection tables.
B. Ratio.
1 030 F Z K 4 A S 105.9
C. Input and/or output speed (rpm).
1000 RATIO D. Horsepower — Motor or brake
SERIES E. Service Factor for application.
VARIANCE F. Mounting position —Horizontal. See Page 5 for tilt limits.
SIZES
G. Auxiliary equipment — Bed plate, couplings, backstop, etc.
BASIC DRIVE MODEL H. Thrust and overhung loads —Specify type and amount.

H.S. SHAFT NO. OF REDUCTIONS

ARRANGEMEN Motor — Prime Mover
ADDITIONAL
PRODUCT A. Type — Motor or engine.
B. Horsepower.
C. Speed — rpm.
D. Frame size — Dimension prints if Rexnord is to furnish
mounting surface and/or mount the equipment.
Sizes E. Motor — driver characteristics, e.g. enclosure, modifications
1020 & 1030 — Cast iron housings and accessories, altitude, brake, etc.
F. Furnished by: Rexnord... Purchaser...
H.S. Shaft Arrangement G. Fitted by: Rexnord... Purchaser...
C — Speed Reducer
Z — Motoreducer with motor bracket & H.S. coupling Driven Machine
M — Motoreducer with motor plate & H.S. coupling
A. Required horsepower or torque.
Additional Product Description B. RPM
K — Torque rated basic drive C. Application description —Belt conveyor, agitator, etc.
D. Service —Duty cycle, hours per day, reversals per minute
if reversing.
Reductions E. Ambient temperature and operating conditions — Outdoor,
taconite dust, etc.
2, 3, & 4

Model Auxiliary Equipment

A. Motors — If Rexnord is to furnish, specify complete
A, B, C, etc.
information, e.g. current characteristics, enclosure,
Variance Symbol modifications, accessories, etc.
B. Couplings — Specify size, type, driver or driven hub bore and
A — Drive with backstop keyway size.
S — Modified or special drive C. Backstop —Specify direction of rotation of the low speed shaft
(clockwise or counter clockwise) when looking toward the
Ratio drive from the low speed end.
D. Motor Mount — Specify complete motor information, required
Exact ratio to four digits belt centers and mounting arrangement.
E. Motor Plate — Specify complete motor, auxiliary equipment
and coupling information.
F. Coupling Guards — Furnish description of couplings or other
equipment to be guarded and all dimensions A-G below.

A C

G
D E F

© Rexnord Industries, LLC, 1997, 2006. (311-310) 12

Types FC2 & FZ2 Concentric Shaft
Horsepower & Torque Ratings
Double Reduction — Ratios 1.50 through 31.39
(TORQUE IS IN POUND INCHES AT LOW SPEED SHAFT . . . MULTIPLY VALUES LISTED BELOW BY 1000)

High Nominal
Approx. HORSEPOWER TORQUE High Nominal
Approx. HORSEPOWER TORQUE
Speed L.S. Speed L.S.
Shaft
Ratios Shaft DRIVE SIZE t
Shaft
Ratios Shaft DRIVE SIZE t
± 4% ± 4% rpm
rpm rpm 1020 1030 1020 1030 rpm 1020 1030 1020 1030
1.50 1170 10.8 21.5 .557 1.16 1.50 580 6.37 12.0 .660 1.31
1.84 950 9.58 19.1 .614 1.26 1.84 470 5.67 10.9 .731 1.44
2.25 780 8.58 17.2 .664 1.38 2.25 390 5.08 9.63 .791 1.55
2.76 640 7.57 15.1 .724 1.45 2.76 320 4.48 8.64 .862 1.67
3.38 520 6.52 13.1 .765 1.57 3.38 260 3.86 7.36 .911 1.78
4.13 420 5.69 11.3 .826 1.65 4.13 210 3.37 6.38 .984 1.87
5.06 350 7.47 21.1 1.36 3.95 5.06 175 4.42 12.0 1.62 4.52
6.20 280 6.40 18.3 1.45 4.16 6.20 140 3.79 10.9 1.72 4.99
1750 7.59 230 5.60 15.9 1.53 4.40 870 7.59 115 3.31 9.00 1.82 5.01
9.30 190 4.80 13.9 1.62 4.63 9.30 95 2.84 7.53 1.93 5.04
11.39 155 4.14 11.9 1.71 4.95 11.39 77 2.45 6.07 2.04 5.07
13.95 125 3.54 9.91 1.81 5.00 13.95 62 2.10 5.03 2.16 5.10
17.09 100 3.09 8.05 1.91 5.03 17.09 50 1.83 4.08 2.28 5.13
20.93 84 2.70 6.63 2.00 5.04 20.93 42 1.60 3.37 2.38 5.15
25.63 68 2.33 4.75 2.11 4.45 25.63 34 1.32 2.61 2.41 4.92
31.39 56 1.70 ‡ 4.05 1.92 ‡ 4.53 31.39 28 1.01‡ 2.20 2.30 ‡ 4.95
1.50 950 9.25 18.5 .583 1.23 1.50 470 5.53 10.0 .693 1.32
1.84 780 8.23 16.4 .645 1.32 1.84 390 4.92 9.12 .766 1.46
2.25 640 7.37 14.7 .698 1.44 2.25 320 4.41 8.06 .829 1.57
2.76 520 6.50 13.0 .761 1.53 2.76 260 3.89 7.22 .905 1.69
3.38 420 5.60 11.2 .804 1.65 3.38 210 3.35 6.14 .955 1.79
4.13 350 4.89 9.75 .869 1.74 4.13 175 2.93 5.33 1.03 1.89
5.06 280 6.42 18.1 1.43 4.15 5.06 140 3.84 10.0 1.70 4.55
6.20 230 5.50 15.8 1.52 4.40 6.20 115 3.29 9.06 1.81 5.01
1430 7.59 190 4.81 13.7 1.61 4.64 720 7.59 95 2.88 7.49 1.91 5.04
9.30 155 4.13 12.0 1.71 4.89 9.30 77 2.47 6.26 2.03 5.07
11.39 125 3.56 9.82 1.80 4.99 11.39 62 2.13 5.05 2.14 5.10
13.95 100 3.04 8.15 1.91 5.03 13.95 50 1.82 4.18 2.27 5.12
17.09 84 2.65 6.62 2.01 5.07 17.09 42 1.59 3.39 2.39 5.15
20.93 68 2.32 5.47 2.10 5.09 20.93 34 1.34 2.80 2.41 5.17
25.63 56 2.00 4.00 2.22 4.59 25.63 28 1.10 2.22 2.43 5.05
31.39 45 1.46 ‡ 3.40 2.02 ‡ 4.65 31.39 22 .875 ‡ 1.86 2.40 ‡ 5.05
1.50 780 7.96 15.8 .614 1.28 1.50 390 4.70 8.18 .731 1.34
1.84 640 7.08 14.2 .678 1.40 1.84 320 4.18 7.43 .808 1.47
2.25 520 6.34 12.7 .734 1.52 2.25 260 3.75 6.56 .876 1.58
2.76 420 5.60 11.2 .802 1.61 2.76 210 3.31 5.88 .956 1.71
3.38 350 4.82 9.66 .846 1.74 3.38 175 2.85 5.00 1.01 1.81
4.13 280 4.21 8.39 .914 1.83 4.13 140 2.49 4.33 1.09 1.90
5.06 230 5.52 15.6 1.50 4.37 5.06 115 3.26 8.18 1.79 4.62
6.20 190 4.73 13.6 1.60 4.63 6.20 95 2.80 7.35 1.91 5.05
1170 7.59 155 4.14 11.8 1.69 4.89 580 7.59 77 2.44 6.08 2.01 5.08
9.30 125 3.55 10.0 1.79 4.98 9.30 62 2.10 5.08 2.14 5.10
11.39 100 3.06 8.09 1.90 5.03 11.39 50 1.81 4.09 2.26 5.13
13.95 84 2.62 6.71 2.01 5.06 13.95 42 1.55 3.39 2.40 5.16
17.09 68 2.28 5.44 2.11 5.09 17.09 34 1.29 2.74 2.41 5.17
20.93 56 2.00 4.50 2.22 5.12 20.93 28 1.08 2.26 2.41 5.18
25.63 45 1.72 3.35 2.33 4.69 25.63 22 .886 1.84 2.43 5.20
31.39 37 1.26 ‡ 2.85 2.13 ‡ 4.77 31.39 18 .714 ‡ 1.55 2.43 ‡ 5.23

t Mechanical hp and torque ratings shown in bold type exceed the drive thermal hp ratings. Check required hp (without service factor) against thermal hp ratings on Page 14.
When selecting drive by torque method, convert required torque (without service factor) to hp and check against thermal ratings on Page 14. For ratings at speed higher than
1750 rpm and for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, reduce hp rating proportionately or use torque for 580 rpm.
‡ Size 1020 with 31.39:1 ratio is a triple reduction (FC3 or FZ3) drive.

13 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FC3 & 4/FZ3 & 4 Concentric Shaft
Horsepower & Torque Ratings
Triple & Quadruple Reduction — Ratios 38.44 through 194.6
(TORQUE IS IN POUND INCHES AT LOW SPEED SHAFT . . . MULTIPLY VALUES LISTED BELOW BY 1000)

High Nominal
Approx. HORSEPOWER TORQUE High Nominal
Approx. HP TORQUE
Speed L.S. Speed L.S.
Shaft
Ratios Shaft DRIVE SIZE t Shaft
Ratios Shaft DRIVE SIZE t
± 4% rpm ± 4% rpm
rpm 1020 1030 1020 1030 rpm 1030 1030
TRIPLE REDUCTION QUADRUPLE REDUCTION
38.44 45 1.47 3.15 2.05 4.41 238.4 7.5 .621 5.29
47.08 37 1.26 2.84 2.16 4.84 291.9 6.0 .511 5.30
57.66 30 1.09 2.51 2.31 5.15 357.5 5.0 .425 5.30
70.62 25 .944 2.03 2.42 5.19 437.9 4.0 .341 5.31
1750 86.50 20 .794
.649
1.68
1.36
2.43
2.44
5.21
5.24
1750 536.3 3.2 .282
.228
5.32
5.34
105.9 16.5 656.8 2.7
129.7 13.5 ... 1.12 ... 5.24 804.5 2.2 .187 5.33
158.9 11.0 ... .913 ... 5.27 985.3 1.8 .152 5.33
194.6 9.0 ... .715 ‡
... 5.01‡ 1207 1.5 .128 5.36
38.44 37 1.26 2.70 2.15 4.63 238.4 6.0 .508 5.30
47.08 30 1.09 2.44 2.28 5.09 291.9 5.0 .418 5.31
57.66 25 .935 2.07 2.43 5.20 357.5 4.0 .348 5.31
70.62 20 .776 1.67 2.43 5.23 437.9 3.2 .279 5.32
1430 86.50 16.5 .650
.532
1.38
1.11
2.44
2.44
5.24
5.23
1430 536.3 2.7 .231
.186
5.34
5.33
105.9 13.5 656.8 2.2
129.7 11.0 ... .919 ... 5.27 804.5 1.8 .153 5.33
158.9 9.0 ... .748 ... 5.28 985.3 1.5 .125 5.37
194.6 7.5 ... .586 ‡
... 5.03‡ 1207 1.2 .104 5.33
38.44 30 1.08 2.33 2.26 4.88 238.4 5.0 .416 5.30
47.08 25 .935 2.04 2.40 5.20 291.9 4.0 .343 5.32
57.66 20 .767 1.70 2.43 5.21 357.5 3.2 .285 5.32
70.62 16.5 .637 1.37 2.44 5.24 437.9 2.7 .229 5.33
1170 86.50 13.5 .533
.436
1.13
.914
2.44
2.45
5.25
5.26
1170 536.3 2.2 .189
.152
5.34
5.33
105.9 11.0 656.8 1.8
129.7 9.0 ... .754 ... 5.28 804.5 1.5 .126 5.37
158.9 7.5 ... .613 ... 5.29 985.3 1.2 .102 5.35
194.6 6.0 ... .481‡ ... 5.05‡ 1207 1.0 .085 5.32
38.44 22 .864 1.85 2.43 5.21 238.4 3.8 .310 5.31
47.08 18 .707 1.52 2.44 5.21 291.9 3.0 .255 5.32
57.66 15 .573 1.27 2.44 5.24 357.5 2.5 .212 5.32
70.62 12.5 .475 1.02 2.45 5.25 437.9 2.0 .170 5.32
870 86.50 10.0 .398
.325
.844
.682
2.45
2.45
5.27
5.28
870 536.3 1.6 .141
.114
5.36
5.37
105.9 8.3 656.8 1.3
129.7 6.8 ... .562 ... 5.29 804.5 1.1 .093 5.33
158.9 5.5 ... .457 ... 5.30 985.3 .90 .076 5.36
194.6 4.5 ... 3.59‡ ... 5.06‡ 1207 .75 .064 5.39
38.44 18 .717 1.54 2.44 5.24 238.4 3.0 .257 5.32
47.08 15 .586 1.27 2.44 5.26 291.9 2.5 .212 5.34
57.66 12.5 .475 1.05 2.45 5.23 357.5 2.0 .176 5.34
70.62 10.0 .394 .847 2.45 5.27 437.9 1.6 .141 5.34
720 86.50 8.3 .330
.270
.700
.566
2.46
2.46
5.28
5.30
720 536.3 1.3 .117
.094
5.37
5.35
105.9 6.8 656.8 1.1
129.7 5.5 ... .466 ... 5.30 804.5 .90 .077 5.33
158.9 4.5 ... .379 ... 5.31 985.3 .75 .063 5.37
194.6 3.8 ... .298‡ ... 5.08‡ 1207 .60 .053 5.40
38.44 15 .579 1.24 2.44 5.24 238.4 2.5 .207 5.32
47.08 12.5 .473 1.02 2.44 5.25 291.9 2.0 .171 5.35
57.66 10.0 .383 .852 2.45 5.27 357.5 1.6 .142 5.35
70.62 8.3 .318 .684 2.46 5.28 437.9 1.3 .114 5.35
580 86.50 6.8 .266
.217
.565
.456
2.46
2.46
5.29
5.30
580 536.3 1.1 .094
.076
5.36
5.37
105.9 5.5 656.8 .90
129.7 4.5 ... .376 ... 5.31 804.5 .75 .062 5.33
158.9 3.8 ... .306 ... 5.33 985.3 .60 .051 5.40
194.6 3.0 ... .241‡ ... 5.10‡ 1207 .50 .042 5.31

t Since thermal hp ratings for drives listed above exceed mechanical hp ratings, it is not necessary to check for thermal limitations. For ratings at speeds higher than 1750 rpm
and for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, reduce hp rating proportionately or use torque for 580 rpm.
‡ Size 1030 with 194.6:1 ratio is a quadruple reduction (FC4 or FZ4) drive.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 14

Types FC2 & FZ2 Concentric Shaft
Thermal Horsepower Ratings ‡
Double Reduction — Ratios 1.50 through 4.13
Thermal Horsepower Thermal Rating Factors
Thermal horsepower is the actual horsepower (without service Thermal horsepower ratings published herein are based on a
factor) that a drive will transmit continually for three hours or more 100°F (38°C) ambient temperature at sea level. For other
without overheating. conditions, the thermal horsepower rating may be multiplied by the
Thermal ratings need not be considered when the continuous factors shown in the tables below. Where no thermal horsepowers
operating period does not exceed three hours and the shutdown are shown in the tables, refer to Factory for selections at ambients
time equals or exceeds the running time. However, when the above 100°F (38°C) and altitudes above sea level.
running time exceeds the shutdown time, selection must be made
on a basis of adequate thermal rating.
Checking the thermal horsepower is extremely important, for if the
drive creates heat faster than it can be dissipated, severe damage
Table 1 — Altitude Factor
may occur. Altitude — ft. Factor with or without
Sea Level = 0 Auxiliary Cooling
When the horsepower or torque appears in bold type, compare
the actual horsepower required (without Service Factor) with the 0 to 2,500 1.00
2,500 .95
thermal horsepower capacity. If the actual load exceeds the 5,000 .90
thermal capacity, a fan or pump and cooler may be added or a 7,500 .85
larger drive may be required. 10,000 .81
12,500 .76
For ambient temperatures above 100°F (38°C) or altitudes above 15,000 .72
sea level see correction factor tables at right. 17,500 .68

High Nominal
Approx. DRIVE SIZE
Speed L.S.
Ratios WITHOUT FAN
Shaft ± 4%
Shaft Table 2 — Ambient Temperature Factor
rpm rpm 1030
Ambient Factor w/o Aux. Cooling
1.50 1170 18 Temperature H or with Fan
1.84 950 20
2.25 780 21 50°F (10°C) 1.39
1750 2.76 640 22
60°F (16°C) 1.32
70°F (21°C) 1.25
3.38 520 23 80°F (27°C) 1.17
4.13 420 25
90°F (32°C) 1.09
1.50 950 20 100°F (38°C) 1.00
1.84 780 22 110°F (43°C) .91
2.25 640 24 120°F (49°C) .81
1430 2.76 520 26 H Factors for other ambient temperatures can be interpolated.
3.38 420 28
4.13 350 30
1.50 780 22
1.84 640 25
1170 2.25 520 28
2.76 420 30
‡ This is actual hp (without service factor) that drive will transmit continually for three
hours or more without overheating. For thermal ratings of drives mounted other
than horizontal, refer to Factory.

Cooling Fan
If a drive creates heat faster than it can be dissipated, severe
damage may occur. Rexnord cooling fans provide a simple,
inexpensive way of permitting greater utilization of the mechanical
rating of drives by lowering operating temperatures, thus
increasing thermal horsepower capacity. Cooling fans have been
successfully used on electric motors and other related machinery
for many years and on Rexnord drives in paper mills, on desert
overland conveyors, steel mills, and other applications for over a
decade. Less than one quarter of one percent catalogued
horsepower rating is required to drive the fan.
Pump & Cooler
Where a cooling fan is not practical, a pump and cooler system is
an alternative to providing the necessary cooling to lower
operating temperatures. Refer to selection guide 141-931 for
pump and cooler information and contact the local Rexnord-Falk
representative for drive selection alternatives, application and
pricing considerations.

15 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Type FC & FZ Concentric Shaft
Overhung Loads
High & Low Speed Shaft
The overhung load and thrust ratings published in this selection Low Speed Shaft
guide are based on a combination of the most unfavorable
Calculate low speed shaft overhung load using the formula and
conditions of rotation, speed, direction of applied load and drive
Fc values at left. The Lf load location factors tabulated on Page 16
loading. If the calculated load exceeds the published value, or if
are based on the distance from the center line of the load to the
an overhung load and thrust load are applied simultaneously to a
drive seal cage.
shaft, refer complete application information to the Factory.
Thrust Loads — Refer to Page 18 for low speed shaft thrust
Overhung Loads — Overhung load is imposed upon a shaft
capacities. Thrust capacities are for pure thrust loads. If thrust and
when a pinion, sprocket or sheave is used as a power take-off.
overhung loads are applied simultaneously, or if loads exceed
The magnitude of the load varies with the type of take-off and its
these capacities, consult Falk.
proximity to the shaft bearing. Calculate the load and check the
result against the tabulated overhung load rating. High Speed Shaft
Overhung Load Formula: High speed shaft overhung load ratings published on Page 17
are for normal conditions where the center line of the load is one
shaft diameter from the seal cage (or external backstop), and for
126,000 x hp x Fc x L f speeds of 1430 rpm or lower. Where the center line of the load is
Overhung Load =
Pitch Diam x rpm one shaft diameter or closer, calculate the high speed shaft
overhung load using Lf = 1 in the formula at left. Check the result
CENTER LINE Fc = Load Connection Factor. against the rating on Page 17. Higher overhung load capacities
OF LOAD
Sprocket H . . . . . . . . . . . . . . . . . 1.00 are available when the full drive torque rating is not utilized. Refer
to Factory for higher ratings for these conditions or if the
Machined Pinion & Gear H . . . . . 1.25 calculated load (using Lf = 1) exceeds the published value or if
Synchronous (Timing)Belt . . . . . . 1.30 the load is applied at a distance greater than one shaft diameter
SEAL
CAGE V-Belt . . . . . . . . . . . . . . . . . . . . 1.50 from the high speed shaft seal cage or external backstop.

DISTANCE Flat Belt . . . . . . . . . . . . . . . . . . . 2.50

Lf = Load Location Factor Q
L.S.S. — See table on Page 16.
H.S.S. — See instructions at right.

H Refer all multiple chain sprocket and pinion

mounted applications to the Factory for
deflection analysis.
Q Load Location Factors for drives with fan or
external backstop, refer to Selection Guide
311-112.

Locate the center of the load as close to the drive seal cage as
practical to minimize the overhung load and increase bearing life.
The above overhung load formula employs the transmitted
horsepower, without service factor, providing the overloads,
starting loads and brake capacities do not exceed the amounts
listed in Gear Drive Ratings on Page 3.
Consult Factory for Higher Overhung Load Ratings — In
many cases, overhung load capacity in excess of that published is
available. Published ratings are based on a combination of the
most unfavorable conditions of rotation, speed, direction of
applied load, and drive loading. If the actual load should exceed
the published capacity, refer full details to the Factory; provide
complete application information (see Page 11), as well as
direction of rotation, location and direction of applied load.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 16

Types FC & FZ Concentric Shaft
LSS Lf Load Location Factors Q
Double, Triple & Quadruple Reduction
Based on distance from center line of load to gear drive seal cage
DISTANCE DRIVE SIZE
Inches 1020 1030
1 .90 .87
1½ 1.00 .96
1¾ 1.08 1.00
2 1.17 1.07
2½ 1.33 1.22
2¾ 1.41 1.29
3 1.50 1.36
3¼ ... 1.43
3½ ... 1.51
Q Interpolate for intermediate values. For example Lf is 1.25 for Size 1020 when the distance is 2¼ inches.

Types FC & FZ Concentric Shaft

LSS Overhung Load Ratings s/Pounds
Double Reduction — Ratios 1.50 through 4.13
Multiply values listed below by 1000. . .Consult Factory for higher overhung load ratings
Approx. DRIVE SIZE
L.S. Shaft
rpm 1020 1030
1170 1.15 1.52
950 1.23 1.61
780 1.30 1.70
640 1.38 1.80
520 1.47 1.92
420 1.56 2.04
350 1.66 2.17
280 ‡ 1.77 2.31

Types FC & FZ Concentric Shaft

LSS Overhung Load Ratings s/Pounds
Double, Triple & Quadruple Reduction — Ratios 5.06 through 1207
Multiply values listed below by 1000. . .Consult Factory for higher overhung load ratings
Approx. DRIVE SIZE
L.S. Shaft
rpm 1020 1030
350 1.64 1.96
280 1.75 2.08
230 1.86 2.21
190 1.97 2.34
155 2.00 2.49
125 2.00 2.50
100 2.00 2.50
84 2.00 2.50
68 2.00 2.50
56 2.00 2.50
45 2.00 2.50
37 2.00 2.50
28 ‡ 2.00 2.50
s Ratings are for pure radial loads. If overhung load and thrust are applied simultaneously, or if loads exceed these values, consult Factory.
‡ The last overhung load value in each drive size column applies to all lower output speeds for that drive. Published ratings are based on a combination of the most unfavorable
conditions of loading. For higher ratings, refer full data to the Factory.

17 (311-310) © The Falk Corporation, 1997, 2004.

 Type FC Concentric Shaft
HSS Overhung Load Ratings H/Pounds
Double, Triple & Quadruple Reduction
For loads applied one shaft diameter from seal cage. . .Consult Factory for higher overhung load ratings
High Approx. DRIVE SIZE High Approx. DRIVE SIZE
Speed Nominal L.S. Speed Nominal L.S.
Shaft Ratios Shaft WITH OR WITHOUT BACKSTOP Shaft Ratios Shaft WITH OR WITHOUT BACKSTOP
rpm‡ rpm 1020 1030 rpm‡ rpm 1020 1030
DOUBLE REDUCTION FC2 TRIPLE REDUCTION FC3 (Continued)
5.06 230 220 20 31.39 22 200 ...
6.20 190 220 50 38.44 18 200 240
7.59 155 220 100 47.08 15 200 240
9.30 125 220 150 57.66 12.5 200 240
11.39 100 220 200 70.62 10.0 200 240
1170 13.95 84 220 230 720 86.50 8.3 200 240
17.09 68 220 260 105.9 6.8 200 240
20.93 56 220 280 129.7 5.5 ... 240
25.63 45 220 200 158.9 4.5 ... 240
31.39 37 ... 220 194.6 3.8 ... ...
5.06 175 220 80 31.39 18 200 ...
6.20 140 220 50 38.44 15 200 240
7.59 115 220 170 47.08 12.5 200 240
9.30 95 220 210 57.66 10.0 200 240
11.39 77 220 260 70.62 8.3 200 240
870 13.95 62 220 290 580 86.50 6.8 200 240
17.09 50 220 300 105.9 5.5 200 240
20.93 42 220 300 129.7 4.5 ... 240
25.63 34 220 260 158.9 3.8 ... 240
31.39 28 ... 280 194.6 3.0 ... ...
5.06 140 220 150 QUADRUPLE REDUCTION FC4
6.20 115 220 120
7.59 95 220 210 194.6 6.0 ... 120
9.30 77 220 250 238.4 5.0 ... 120
11.39 62 220 300 291.9 4.0 ... 120
720 357.5 3.2 ... 120
13.95 50 220 300 437.9 2.7 ... 120
17.09 42 220 300 1170
20.93 34 220 300 536.3 2.2 ... 120
25.63 28 220 300 656.8 1.8 ... 120
31.39 22 ... 300 804.5 1.5 ... 120
985.3 1.2 ... 120
5.06 115 220 190
6.20 95 220 190 194.6 4.5 ... 120
238.4 3.8 ... 120
580 7.59 77 220 260
291.9 3.0 ... 120
9.30 62 220 300
11.39 50 220 300 357.5 2.5 ... 120
870 437.9 2.0 ... 120
TRIPLE REDUCTION FC3 536.3 1.6 ... 120
31.39 37 200 ... 656.8 1.3 ... 120
38.44 30 200 240 804.5 1.1 ... 120
47.08 25 200 240 985.3 .90 ... 120
57.66 20 200 240 194.6 3.8 ... 120
70.62 16.5 200 240 238.4 3.0 ... 120
1170 86.50 13.5 200 240 291.9 2.5 ... 120
105.9 11.0 200 240 357.5 2.0 ... 120
129.7 9.0 ... 240 720 437.9 1.6 ... 120
158.9 7.5 ... 240 536.3 1.3 ... 120
194.6 6.0 ... ... 656.8 1.1 ... 120
31.39 28 200 ... 804.5 .90 ... 120
38.44 22 200 240 985.3 .75 ... 120
47.08 18 200 240 194.6 3.0 ... 120
57.66 15 200 240 238.4 2.5 ... 120
70.62 12.5 200 240 291.9 2.0 ... 120
870 86.50 10.0 200 240 357.5 1.6 ... 120
105.9 8.3 200 240 580 437.9 1.3 ... 120
129.7 6.8 ... 240 536.3 1.1 ... 120
158.9 5.5 ... 240 656.8 .90 ... 120
194.6 4.5 ... ... 804.5 .75 ... 120
985.3 .60 ... 120
H In each High Speed Shaft rpm section, the last overhung load value applies to all higher ratios of that gear reduction. Published ratings are based on a combination of the most
unfavorable conditions of loading. For higher ratings and for loads applied at a distance greater than one shaft diameter from the seal cage or backstop, refer full application
data to the Factory. Also refer to the Factory for ratings of drives with both a fan and a backstop.
‡ For input speeds higher than 1170 rpm, refer to 311-112.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 18

Types FC & FZ Concentric Shaft
LSS Thrust Loads CONCENTRIC SHAFT
HORIZONTAL
Thrust Loads — External thrust loads are often imposed upon
gear drive bearings by agitators, mixers and similar equipment
through solid couplings and also some flexible couplings
Calculate the direction and magnitude of the thrust and check the OUTWARD OUTWARD
result against the tabulated thrust value.

INWARD INWARD

TYPE FC TYPE FZ

Types FC & FZ Concentric Shaft

LSS Thrust Load Capacity Q/Pounds
All Ratios
Thrust inward or outward. . .multiply values listed below by 1000

Approx. DRIVE SIZE

L.S. Shaft
rpm 1020 1030
1170 1.20 1.50
950 1.20 1.50
780 1.20 1.50
640 1.20 1.50
520 1.20 1.50
420 1.20 1.50
350 1.20 1.50
280 1.20 1.50
230 1.20 1.50
190 1.20 1.50
155 1.20 1.50
125 1.20 1.50
100 1.20 1.50
84 1.20 1.50
68 1.20 1.50
56 1.20 1.50
45 1.20 1.50
37 1.20 1.50
28‡ 1.20 1.50
Q Thrust capacities are for pure thrust loads. If thrust and overhung loads are applied simultaneously, or loads exceed these capacities, consult Factory.
‡ The last thrust capacity value in each drive size column applies to all lower output speeds for that drive.

19 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FC & FZ Concentric Shaft
Exact Ratios Q
Double, Triple, & Quadruple Reduction

Double Reduction
Approx. DRIVE SIZE
Nominal
L.S. Shaft
Ratios rpm‡ 1020 1030
1.50 1170 1.432Q 1.503
1.84 950 1.780 1.827
2.25 780 2.149Q 2.223
2.76 640 2.658 2.674
3.38 520 3.259 3.337
4.13 420 4.032 4.048
5.06 350 5.055 5.201
6.20 280 6.283 6.319
7.59 230 7.588 7.691
9.30 190 9.385 9.251
11.39 155 11.50 11.54
13.95 125 14.23 14.00
17.09 100 17.20 17.37
20.93 84 20.57 21.12
25.63 68 25.21 26.02
31.39 56 ... 31.06

Triple Reduction
Approx. DRIVE SIZE
Nominal
Ratios L.S. Shaft
rpm‡ 1020 1030
31.39 56 31.39 ...
38.44 45 38.82 38.91
47.08 37 47.58 47.36
57.66 30 58.87 56.97
70.62 25 71.14 71.09
86.50 20 85.09 86.22
105.9 16.5 104.3 107.0
129.7 13.5 ... 130.1
158.9 11.0 ... 160.2
194.6 9.0 ... ...

Quadruple Reduction
Approx. DRIVE SIZE
Nominal
L.S. Shaft
Ratios 1020 1030
rpm ‡
194.6 9.0 ... 194.8
238.4 7.5 ... 236.7
291.9 6.0 ... 288.1
357.5 5.0 ... 346.6
437.9 4.0 ... 432.4
536.3 3.2 ... 524.5
656.8 2.7 ... 650.7
804.5 2.2 ... 791.1
985.3 1.8 ... 974.8
1207 1.5 ... 1163
‡ Based on 1750 rpm input speed.
Q Exact ratios are within ±4% of nominal for double and triple reduction drives and ±5% of nominal for quadruple reduction drives except where noted with an asterisk.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 20

Type FC Concentric Shaft — Dimensions (Inches)
Double, Triple & Quadruple Reduction — Sizes 1020 & 1030

H.S. SHAFT
KEY
Z
Y

VENTED DIPSTICK &

OIL FILLER PLUG
C
X
USABLE NA USABLE CLEARANCE
N R R
LENGTH LENGTH 1.4
L.S. SHAFT
KEY

UA U
O
D
OIL DRAIN
W G BOTH ENDS

V V
Q J J
F 4 - HOLES FOR H - DIA E E
SAE GRADE 5 BOLTS
B A

DRIVE L.S. SHAFT Q Wl Max Wt-lb

SIZE A B D E F G H J N O Q R V X Y Z
H U Key W/O With AA Ave

1020 11.60 5.12 6.30 5.20 4.00 .68 .500 3.0 3.00 9.72 5.48 4.5 1.5000 .375 x .375 x 2.750 .58 3.24 2.86 7.0 2.60 1.26 13.10 90
1030 12.60 6.78 7.00 5.60 5.34 .70 .625 3.3 3.50 10.90 6.14 5.1 1.7500 .375 x .375 x 3.000 .72 3.60 3.22 7.7 3.00 1.86 13.10 140

Double Reduction — FC2/FZ2 Triple Reduction — FC3/FZ3 Quadruple Reduction — FC4/FZ4

DRIVE
SIZE H.S. SHAFT Q H.S. SHAFT Q H.S. SHAFT Q
H C NA C NA C NA
UA Key UA Key UA Key
1020 13.84 2.00 1.0000 .250 x .250 x 1.750 13.84 2.00 1.0000 .250 x .250 x 1.750 ... ... ... ...
1030 16.26 2.26 1.1250 .250 x .250 x 2.000 16.32 2.26 1.1250 .250 x .250 x 2.000 15.76 1.76 .8750 .188 x .188 x 1.500
H Dimensions are for reference only and are subject to change without notice unless certified.
Drives are for horizontal floor mounted operation or incline mounted operation within the limits specified on Page 5, unless specifically stated otherwise.
Q Shaft diameters are held to limits of +.0000”, –.0005”. Shaft keyseat depth is one-half of key height.
l Dimension W is clearance with and without (W/O) internal backstop. For drive with backstop, indicate L.S. shaft rotation when viewing drive from the end of the L.S. shaft.

21 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Type FZ Concentric Shaft — Dimensions (Inches)
Double, Triple & Quadruple Reduction — Sizes 1020 & 1030

Y Z

AA DIMENSIONS ON PAGE 20
(CA IN TABLE BELOW)

CA
SHAFT VENTED DIPSTICK &
C OIL FILLER PLUG
GAP X
GUARD USABLE CLEARANCE R R
N 1.4
LENGTH
L.S. SHAFT
KEY

U
O
D
OIL DRAIN
W G BOTH ENDS

V V
Q 4 - HOLES FOR H - DIA J J
F
SAE GRADE 5 BOLTS E E
B A

Average Max t CA – APPROXIMATE OVERALL LENGTH WITH MOTOR AND TYPE T COUPLING ‡
Weight NEMA
DRIVE of Drive T&U MOTOR FRAME SIZE t
SIZE Only Frame
lb n Size 143T 145T 182T 184T 213T

OPEN MOTORS
1020 90 215 28.4 28.4 29.5 29.5 30.3
1030 140 215 30.5 30.5 31.6 31.6 32.4
TEFC MOTORS
1020 90 215 26.9 27.3 28.9 29.9 35.1
1030 140 215 29.1 29.5 31.1 32.1 37.4
‡ CA dimensions are approximate and may vary with motor manufacturer.
n Weight shown is for Type FC drive. For Type FZ motoreducer weight, add average drive weight to approximate weight below.
t Brackets for Sizes 1020 and 1030 will accept either T, TS, U or US frame motors. Do not exceed the motoreducer ratings shown in the selection tables. Standard length and
semi-standard length blank bracket dimensions are covered in Engineering 317-315.
Refer to Pages 4 and 5 for instructions when using other than T-frame motors.

APPROXIMATE WEIGHTS OF FALK MOTOR BRACKETS/COUPLINGS AND MOTORS — lb

HP 1 1 1/2 2 3 5 7 1/2 10
FRAME t 143T 145T 145T 182T 184T 213T 215T
DRIVE SIZE Bracket and Coupling Weights
1020 & 1030 35 35 35 35 35 45 45
1750 rpm Motor Weights
TEFC General 30 35 40 60 80 120 165
Duty Motor
TEFC High 30 45 55 70 85 125 170
Efficiency Motor
OPEN 30 35 35 60 70 120 145
MOTOR
t See (t) note above.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 22

Type MM Motor Mounts
Sizes 1020 through 1050 – Dimensions (Inches)
Standard Assemblies QA QA
Assemblies are viewed from high speed end of drive. For 3 and 9 o’clock QA
assemblies, refer to (t) footnote below to determine dimensions FA, GA, H. S. H. S.
5º 5º
HA and JA. Refer to Page 20, 48 or 50 for drive dimensions. SHAFT SHAFT
9 O'CLOCK 12 O'CLOCK 3 O'CLOCK

OSHA GUARD

KA MA RA MA RA
SHIM IF
GA REQUIRED
FA
JA H. S.
HA SHAFT
LA PA
REFER TO STD.
ASSEMBLIES ABOVE

H. S.
SHAFT
H. S.
SHAFT L. S. L. S.
SHAFT: SHAFT
FC FC
FCB FCB
SIZES 1020-1050
SIZE 1020 . . . 56-210T & U
SIZE 1030 . . . 56-284T & U SIZE 1050 . . . 56-210T & U
SIZE 1040 . . . 56-284T & U
SIZE 1050 . . . 250-320T & U

MINIMUM AND MAXIMUM SHAFT CENTERS

MOTOR 3&9t Dimension QA
MOUNT 12 O’clock Mounting Qt O’clock HA JA Std Assemblies
PA Clock Positions
SIZE 56 140 180 210 250 280 320 FA & GA Min Max
H Addition
FA GA FA GA FA GA FA GA FA GA FA GA FA GA 3 9 12
MM1020 11.00 13.80 11.00 13.80 12.00 14.80 12.76 15.56 ... ... ... ... ... ... 1.32 7.50 10.30 6.24 .10 .10 1.34
MM1030 12.22 15.22 12.22 15.22 13.22 16.22 13.98 16.98 14.98 17.98 15.72 18.72 ... ... 1.40 8.72 11.72 7.44 .06 .06 1.50 ‡
MM1040 13.10 16.10 13.10 16.10 14.10 17.10 14.86 17.86 15.86 18.86 16.60 19.60 ... ... 1.84 9.60 12.60 8.32 2.00 2.00 0
MM1050 14.06 17.00 14.06 17.00 15.06 18.00 15.82 18.76 16.82 19.76 17.56 20.50 18.56 21.50 2.14 10.56 13.50 9.30 2.34 2.34 0

MOTOR 56 thru 210 56 thru 284 250 thru 284 250 thru 320 DIMENSION MA
MOUNT Motor Motor Motor Motor
SIZE KA LA Mount KA LA Mount KA LA Mount KA LA Mount 56 140 180 210 250 280 320
H
Wt-lb Wt-lb Wt-lb Wt-lb
MM1020 12.62 3.28 40 ... ... ... ... ... ... ... ... ... 9.04 9.54 9.04 8.28 ... ... ...
MM1030 ... ... ... 14.00 3.36 65 ... ... ... ... ... ... 11.24 11.74 11.24 10.50 9.74 9.24 ...
MM1040 13.00 –2.28 l 55 ... ... ... 14.00 2.02 70 ... ... ... 12.68 13.18 12.68 11.92 11.16 10.68 ...
MM1050 15.00 ... 60 ... ... ... ... ... ... 16.00 2.72 90 15.28 15.78 15.28 14.54 13.78 13.28 12.78
H Dimensions are for reference only and subject to change without notice unless certified.
Q When determining belt length for minimum shaft centers, follow the belt manufacturer’s installation allowance recommendations and also provide for future belt tensioning.
Motors may be shimmed up to 1.5”.
‡ For Size 1030 FCB, the motor center line is to the left of the gear drive center line.
l Measure (–) LA to left of shaft end instead of as shown; shaft extends beyond bracket.
t To determine shaft centers for 3 & 9 o’clock mountings, add amount shown in the 3 & 9 o’clock Addition column to the 12 o’clock FA & GA dimensions.
Dimensions HA and JA will increase the same amounts.

How to Order The following information is required to make proper selection:

1. Rexnord Drive — size and type as shown on nameplate or from
Your nearby Rexnord Representative or Authorized Distributor will
selection tables in this bulletin.
be pleased to analyze your new or existing application
2. Motor make — horsepower and type.
requirements and recommend the most efficient and economical
3. NEMA motor frame size. Check dimension table to make
motor mount selections. At the same time, if you wish, his wide
certain motor mount is available for your motor frame size.
experience in the field of power transmission qualifies him to
4. Required belt centers. If not known, the motor mount will be
examine your installation and perhaps point out additional ways to
selected with minimum belt centers (Dimension FA above)
increase efficiency and reduce cost with other Rexnord precision
based on information from Steps 1 thru 3.
products.
5. Clock position — specify preferred mounting arrangement.
23 (311-310) © Rexnord Industries, LLC, 1997, 2006.
 Type MM Motor Mounts
Sizes 1060 through 1100 – Dimensions(Inches)
Standard Assemblies
Assemblies are viewed from high speed end of drive. For 3 and 9 o’clock
(+)QA QA (+)Q
assemblies, refer to (t) footnote below to determine dimensions FA, GA, HA
and JA. Refer to Page 50 for drive dimensions.
H. S. H. S.
NOTE: Motor mounts are not available for Drive Size 1100 with an external (-)QA (-)QA
SHAFT SHAFT
backstop or Drive Sizes 1060 thru 1100 with fans. 9 O'CLOCK 12 O'CLOCK 3 O'CLOCK

OSHA GUARD

SHIM IF
REQUIRED
MA
MA
KA GA SUPPORT: RA LA
250-404T
JA FA
H. S.
HA SHAFT PA

REFER TO STD.
H. S. ASSEMBLIES ABOVE
SHAFT Figure 1 Figure 2
H. S. L. S. L. S.
SHAFT SHAFT: SHAFT:
FC
FCB FC
FCB

SIZES 1060-1100 . . . 140-210T & Us SIZES 1060-1100 . . . 250-400T & U

SIZES 1060 - 1100 (Size 1060 Max. U-Frame is 404)

MINIMUM AND MAXIMUM SHAFT CENTERS

MOTOR 3&9t
MOUNT 12 O’clock Mounting Qt O’clock HA † JA Q
SIZE FA & GA PA
140 180 210 250 280 320 360 400 Min Max
H Addition
FA GA FA GA FA GA FA GA FA GA FA GA FA GA FA GA
MM1060 16.42 20.02 17.42 21.02 18.18 21.78 19.18 22.78 19.92 23.52 20.92 24.52 22.60 25.52 23.60 26.52 1.96 12.92 16.52 11.48
MM1070 16.92 20.52 17.92 21.52 18.68 22.28 19.68 23.28 20.42 24.02 21.42 25.02 23.10 26.02 24.10 27.02 2.40 13.42 17.02 11.98
MM1080 17.82 21.42 18.82 22.42 19.58 23.18 20.58 24.18 21.32 24.92 22.32 25.92 23.76 26.92 24.76 27.92 2.50 14.32 17.92 12.76
MM1090 18.94 22.54 19.94 23.54 20.70 24.30 21.70 25.30 22.44 26.04 23.44 27.04 24.88 28.04 25.88 29.04 2.32 15.44 19.04 13.88
MM1100 21.32 24.92 22.32 25.92 23.08 26.68 24.08 27.68 24.82 28.42 25.82 29.42 27.26 30.42 28.26 31.42 2.10 17.82 21.42 16.26

DIMENSION MA ‡ Dimension QA
MOTOR 140 thru 210 250 thru 320 360 thru 400 Standard Assemblies
FCB3, FCB4 & FCB5
MOUNT Clock Positions
SIZE Motor Motor Motor
H KA Mount KA LA Mount KA LA Mount 140 180 210 250 280 320 360 400 3 9 12
Wt-lb Wt-lb Wt-lb
MM1060 15.00 60 16.00 .08 115 20.00 (+)3.52 l 200 18.74 18.24 17.48 16.74 16.24 15.74 15.36 14.60 (–) .84 n (+)1.84 n 2.24n
MM1070 15.00 60 16.00 2.80 ‡ 115 20.00 (+)0.82 ‡l 200 21.46 20.96 20.20 19.46 18.96 18.46 18.06 17.32 (–)2.64 n (–)1.76 n 2.24n
MM1080 15.00 75 20.00 1.92 ‡ 170 20.00 1.92 ‡ 220 24.42 23.92 23.16 22.42 21.92 21.42 20.80 20.04 (–)2.44 (–)1.32 3.94
MM1090 15.00 75 20.00 4.94 ‡ 175 20.00 4.94 ‡ 225 27.44 26.94 26.18 25.44 24.94 24.44 23.82 23.06 (–)2.44 (–)1.32 3.94
MM1100 15.00 80 20.00 8.38 195 20.00 8.38 245 30.96 30.46 29.70 28.96 28.46 27.96 27.26 26.50 (–) .40 (+) .40 2.76
H Dimensions are for reference only and are subject to change without notice unless certified.
s A support is furnished only for 250T and larger frames.
Q When determining belt length for minimum shaft centers, follow the belt manufacturer’s installation allowance recommendations and also provide for future belt tensioning.
Motors may be shimmed up to 1.5”.
† For 360 and 400 frames add the following to the “HA” dimension: .68” for sizes 1060 and 1070FCB; .44” for sizes 1080 thru 1100FCB.
t To determine shaft centers for 3 & 9 o’clock mountings, add amount shown in the “3 & 9 o’clock Addition” column to the 12 o’clock FA & GA dimensions.
Dimensions HA and JA will increase the same amounts.
‡ Sizes 1070FCB3: Add .12” to dimensions MA & LA. Sizes 1080 and 1090FCB3: Add .38” to dimensions MA & LA.
l Bracket extends beyond end of shaft; (+)LA is from end of shaft, (right), to end of bracket.
n Dimension QA for Sizes 1060 and 1070FCB with the 360-400 motor frames are: add .46” for 3 o’clock; add .34” for 9 o’clock and use 4.34” for 12 o’clock.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 24

Type MC
C-Face Motor Adapters for Type FC Drives
Sizes 1020 & 1030

BB 4-HOLES EQUALLY SPACED

AA FOR HH-DIA. BOLT
H. S. SHAFT ON JJ-DIA. BOLT CIRCLE
KEY
C

FF

UA

GG

DD

MOTOR Dimensions — Inches

ADAPTER & Drive
Type & Motor
DRIVE SIZE Frame C AA BB DD FF GG HH JJ UA KEY
H Reduction

FC2 56-145 13.84 17.64 17.89 .64 4.502 7.38 .375 5.875 1.000 .250 x .250 x 1.75
MC1020 182-215 13.84 18.76 18.96 .64 8.502 9.25 .500 7.250 1.000 .250 x .250 x 1.5
FC3 56-145 13.84 17.64 17.89 .64 4.502 7.38 .375 5.875 1.000 .250 x .250 x 1.75
143-145 16.26 19.80 20.05 .64 4.502 7.38 .375 5.875 1.125 .250 x .250 x 2.00
FC2 182-184 16.26 20.92 21.12 .64 8.502 9.25 .500 7.250 1.125 .250 x .250 x 2.00
213-256 16.26 21.42 21.62 .64 8.502 9.25 .500 7.250 1.125 .250 x .250 x 2.00
MC1030
FC3 56-145 16.32 19.85 20.10 .64 4.502 7.38 .375 5.875 1.125 .250 x .250 x 2.00
182-184 16.32 20.97 21.17 .64 8.502 9.25 .500 7.250 1.125 .250 x .250 x 2.00
FC4 56-145 15.76 19.80 20.05 .64 4.502 7.38 .375 5.875 .875 .188 x .188 x 1.50
H Dimensions are for reference only and are subject to change without notice unless certified.

25 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Type MC
C-Face Motor Adapters for Type FCB Drives
Sizes 1020 through 1080
4-HOLES EQUALLY SPACED
AA FOR HH-DIA. BOLT
H. S. SHAFT ON JJ-DIA. BOLT CIRCLE
KEY
C

FF

UA

GG

DD

MOTOR Dimensions — Inches

ADAPTER & Drive
Motor
DRIVE SIZE Type & Frame
H Reduction C AA BB DD FF GG HH JJ UA KEY

FCB3 56-145 18.18 21.98 22.23 .64 4.502 7.38 .375 5.875 1.000 .250 x .250 x 1.75
MC1020 182-215 18.18 23.10 23.30 .64 8.502 9.25 .500 7.250 1.000 .250 x .250 x 1.75
FCB4 56-145 18.18 21.98 22.23 .64 4.502 7.38 .375 5.875 1.000 .250 x .250 x 1.75
143-145 22.12 25.66 25.91 .64 4.502 7.38 .375 5.875 1.125 .250 x .250 x 2.00
FCB3 182-184 22.12 26.78 26.98 .64 8.502 9.25 .500 7.250 1.125 .250 x .250 x 2.00
213-256 22.12 27.28 27.48 .64 8.502 9.25 .500 7.250 1.125 .250 x .250 x 2.00
MC1030 56-145 22.18 25.71 25.96 .64 4.502 7.38 .375 5.875 1.125 .250 x .250 x 2.00
FCB4 182-184 22.18 26.83 27.03 .64 8.502 9.25 .500 7.250 1.125 .250 x .250 x 2.00
FCB5 56-145 21.62 25.66 25.91 .64 4.502 7.38 .375 5.875 .875 .188 x .188 x 1.50
182-184 25.50 29.67 29.87 .64 8.502 9.25 .500 7.250 1.375 .312 x .312 x 2.50
FCB3 213-256 25.50 30.17 30.37 .64 8.502 9.25 .500 7.250 1.375 .312 x .312 x 2.50
284-286 25.50 30.92 31.12 .64 10.502 11.50 .500 9.000 1.375 .312 x .312 x 2.50
MC1040 56-145 25.50 28.55 28.80 .64 4.502 7.38 .375 5.875 1.375 .312 x .312 x 2.50
FCB4 182-184 25.50 29.67 29.87 .64 8.502 9.25 .500 7.250 1.375 .312 x .312 x 2.50
213-215 25.50 30.17 30.37 .64 8.502 9.25 .500 7.250 1.375 .312 x .312 x 2.50
FCB5 56-145 24.46 28.50 28.75 .64 4.502 7.38 .375 5.875 .875 .188 x .188 x 1.50
182-184 28.66 33.59 33.79 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00
FCB3 213-256 28.66 34.09 34.29 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00
284-286 28.66 34.84 35.04 .64 10.502 11.50 .500 9.000 1.625 .375 x .375 x 3.00
MC1050 56-145 28.66 32.47 32.72 .64 4.502 7.38 .375 5.875 1.625 .375 x .375 x 3.00
FCB4 182-184 28.66 33.59 33.79 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00
213-256 28.66 34.09 34.29 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00
FCB5 56-145 27.10 30.90 31.15 .64 4.502 7.38 .375 5.875 1.000 .250 x .250 x 1.50
213-215 32.48 36.73 36.93 .64 8.502 9.25 .500 7.250 1.875 .500 x .500 x 3.25
FCB3 254-256 32.48 37.23 37.43 .64 8.502 9.25 .500 7.250 1.875 .500 x .500 x 3.25
284-286 32.48 37.98 38.18 .64 10.502 11.50 .500 9.000 1.875 .500 x .500 x 3.25

MC1060 143-145 31.86 35.01 35.26 .64 4.502 7.38 .375 5.875 1.625 .375 x .375 x 3.00
FCB4 182-184 31.86 36.13 36.33 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00
213-256 31.86 36.63 36.83 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00

FCB5 56-145 31.10 35.01 35.26 .64 4.502 7.38 .375 5.875 1.250 .250 x .250 x 2.25
182-184 31.10 36.13 36.33 .64 8.502 9.25 .500 7.250 1.250 .250 x .250 x 2.25
213-215 38.08 42.45 42.65 .64 8.502 9.25 .500 7.250 2.125 .500 x .500 x 3.75
FCB3 254-256 38.08 42.95 43.15 .64 8.502 9.25 .500 7.250 2.125 .500 x .500 x 3.75
284-286 38.08 43.70 43.90 .64 10.502 11.50 .500 9.000 2.125 .500 x .500 x 3.75

MC1070 182-184 37.02 41.25 41.45 .64 8.502 9.25 .500 7.250 1.750 .375 x .375 x 3.00
FCB4 213-256 37.02 41.75 41.95 .64 8.502 9.25 .500 7.250 1.750 .375 x .375 x 3.00
284-286 37.02 42.50 42.70 .64 10.502 11.50 .500 9.000 1.750 .375 x .375 x 3.00

FCB5 56-145 36.28 39.93 40.18 .64 4.502 7.38 .375 5.875 1.375 .312 x .312 x 2.50
182-184 36.28 41.05 41.25 .64 8.502 9.25 .500 7.250 1.375 .312 x .312 x 2.50
182-215 41.50 45.78 45.98 .64 8.502 9.25 .500 7.250 2.000 .500 x .500 x 3.50
FCB4 254-256 41.50 46.28 46.48 .64 8.502 9.25 .500 7.250 2.000 .500 x .500 x 3.50
284-286 41.50 47.03 47.23 .64 10.502 11.50 .500 9.000 2.000 .500 x .500 x 3.50
MC1080
56-145 40.76 43.91 44.16 .64 4.502 7.38 .375 5.875 1.625 .375 x .375 x 3.00
FCB5 182-184 40.76 45.03 45.23 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00
213-215 40.76 45.53 45.73 .64 8.502 9.25 .500 7.250 1.625 .375 x .375 x 3.00
H Dimensions are for reference only and are subject to change without notice unless certified.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 26

Type MP Motor Plates
Sizes 30 through 110 – Dimensions (Inches)
Type MP motor plates are used to accommodate oversize motors,
special couplings, clutches, or brakes. Motor plates allow for
simplified installation of the total assembly, and also provide a
PA-DIA. HAND HOLES KA rigid, “hard” mounting of the drive and motor when required.
JA Hand holes provide access to the drive, motor, and motor
plate foundation bolts: they also provide simplified handling
and venting when the motor plate is grouted in place.
RA Standard motor plates are available; each plate
MA accommodating two drive sizes, for example, MP20/30 is
MAX. for Size 1020/1030 drives. For oversize prime movers,
FLAT
RA L. S. SHAFT larger motor plates (MP60/70 with a Size 1050 drive) may
KEY be used and are priced accordingly.
Special motor plates can be designed to accommodate special
CA couplings, clutches, brakes and prime movers which will not fit on
LA H.S.SHAFT COUPLING the standard motor plates shown here.
GAP GUARD (WHEN
SPECIFIED)
TO SUIT
MOTOR:
SHIM
BLOCKS
OR
PEDESTAL
D
DA

TA

VA Q 6-HOLES EA EA GA
FA FA VA FOR HA DIA. AA
BA GRADE 5 BOLTS

DRIVE Motor LA
DA
SIZE Plate D
±.14 FCB3 FCB4 FCB5 Q QA
H (MP) Size FC2 FC3 FC4
1020 MP20/30 6.30 12.30 25.06 25.06 ... 6.40 6.98
1030 MP20/30 7.00 13.00 23.16 23.10 23.66 6.92 8.02
1040 MP40/50 8.50 14.50 33.52 33.52 34.56 7.46 9.02
1050 MP40/50 9.60 15.60 31.62 31.62 33.18 8.66 9.66

1060 MP60/70-2 10.60 16.60 22.06 22.68 23.44 8.50 9.22

MP60/70 10.60 16.60 40.06 40.68 41.44 8.50 9.22

1070 MP60/70-2 11.66 17.66 19.66 20.72 21.46 9.50 11.00

MP60/70 11.66 17.66 37.66 38.72 39.46 9.50 11.00

1080 MP80/90-2 12.78 21.78 37.02 38.06 38.80 11.20 12.86

MP80/90 12.78 21.78 52.02 53.06 53.80 11.20 12.86

1090 MP80/90-2 15.74 24.74 34.82 36.24 36.98 12.40 14.42

MP80/90 15.74 24.74 49.82 51.24 51.98 12.40 14.42
1100 100/110-2 17.40 26.40 32.54 33.90 34.38 13.54 18.58
100/110 17.40 26.40 58.54 59.90 60.38 13.54 18.58

DRIVE Motor
SIZE Plate AA Q TA Wt-lb
BA EA FA GA HA JA KA MA PA RA VA
H (MP) Size ±.10 (w/o Drive)

1020/1030 MP20/30 16.00 34.00 5.50 15.50 .50 1.000 ... ... 14.00 ... ... 5.90 1.50 140
1040/1050 MP40/50 20.00 46.00 7.50 21.50 .50 1.000 0 15.50 18.00 5.00 6.70 5.90 1.50 270

1060/1070 MP60/70-2 25.00 40.00 10.00 18.50 .50 1.000 0 20.00 23.00 6.00 8.00 5.90 1.50 272
MP60/70 25.00 58.00 10.00 27.50 .50 1.000 1.00 22.00 23.00 6.00 8.00 5.90 1.50 380

1080/1090 MP80/90-2 30.00 60.00 11.80 27.50 .75 1.500 0 23.30 26.50 6.00 9.00 8.90 2.50 874
MP80/90 30.00 75.00 11.80 35.00 .75 1.500 1.00 31.00 26.50 6.00 9.00 8.90 2.50 980
1100 MP100/110-2 35.00 60.00 14.20 27.50 .75 1.500 0 30.00 31.50 6.00 12.00 8.90 2.50 942
MP100/110 35.00 86.00 14.20 40.50 .75 1.500 2.00 36.00 31.50 6.00 12.00 8.90 2.50 1150
H Dimensions are for reference only and are subject to change without notice unless certified. Drives are for horizontal floor mounted operation unless specifically stated otherwise.
Consult Factory for other mountings.
Q When a motor pedestal is furnished, dimension AA is 1.24” wider for MP 40/50, 1.50” wider for MP60 thru 90 and 1.0”" wider for MP100 thru 130.

27 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Type SB Slide Bases
Sizes 20-100 –Dimensions (Inches)

Type SB slide bases provide for convenient positioning of drives,

and facilitate chain and belt installation tensioning and service.
The slide base is permanently bolted to the foundation, and when
a change of position is desired, the drive is easily shifted by
loosening the reducer foundation bolts and turning the adjusting
screws. After the desired belt or chain tension is obtained, the
drive foundation bolts are tightened, and the machine is ready for
operation. All drives on slide bases are available with motor
mounts in the 12 o’clock position; Sizes 1090 and larger are also
available with motor mounts in the 3 and 9 o’clock positions.

CENTERLINE FOR
SLIDE BASE AND
UNIT FEET BOLTS

4-HOLES FOR HB - DIA.

SAE GRADE 5 BOLTS

L. S.
SHAFT
BOLTS &
JACKSCREWS
FURNISHED
BY FALK
DB MAX. MB
TRAVEL MINIMUM

GB

VB JB JB
VB FB FB Q PB
NB
BB NB EB
AB CB MAX.

SLIDE
BASE Wt-lb
SIZE Q AB BB CB DB EB FB GB HB JB MB NB PB VB
Average
H

SB20 5.48 20.32 7.00 4.00 8.30 18.92 2.00 .38 .500 2.00 4.10 .70 7.40 1.50 16
SB30 6.14 22.34 9.20 3.50 9.26 20.54 2.67 .50 .625 2.50 4.10 .90 8.20 1.92 34
SB40 6.86 25.02 10.20 3.36 10.76 23.22 3.05 .50 .750 2.50 4.10 .90 9.54 2.04 41
SB50 8.10 28.30 11.60 3.56 12.36 26.30 3.55 .50 .875 3.00 4.70 1.00 10.80 2.24 62
SB60 8.00 31.32 14.70 2.78 13.86 28.72 5.00 .62 1.000 3.50 4.70 1.30 12.00 2.35 92
SB70 9.20 33.72 16.40 2.90 14.92 31.12 5.65 .62 1.125 3.50 4.70 1.30 13.20 2.54 104
SB80 10.00 37.68 19.00 4.18 16.54 34.88 6.60 .75 1.250 4.00 5.70 1.40 14.58 2.90 169
SB90 11.50 44.72 21.00 2.18 20.00 39.72 7.15 1.00 1.500 6.00 5.70 2.50 17.00 3.35 228
SB100 13.14 46.16 21.20 2.26 21.66 41.16 7.48 1.00 1.500 6.00 5.70 2.50 17.72 3.12 264
H Dimensions are for reference only and are subject to change without notice unless certified.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 28

 Backstops (Cartridge & Pawl) Dimensions (Inches)

Prevent Reverse Rotation

Backstops provide positive prevention of reverse rotation or
backrun without backlash on conveyors, elevator head shafts and EXTERNAL BACKSTOP
similar applications. Designed as standard accessories, backstops C
can be furnished on all horizontal concentric shaft drives. USABLE NA
LENGTH
To prevent damage to backstops due to incorrect motor shaft
rotation at start up, couplings are NOT assembled when drives UA
are furnished with backstops. After completing the electrical
connection, check motor and drive shaft rotations. Then complete
alignment and assembly of coupling.
DO NOT use a backstop as a substitute for a brake.
Both types of backstops are designed to prevent reverse rotation 5 External/pawl type
times or less in eight hours, with one minute or more in the
over-running direction between backstopping load applications. If
backstopping operations are more frequent, or the time between
operations is less than one minute, the backstop is classified as a Drive Size 1100
working or indexing device and the application must be referred
to the Factory for selection. When ordering, specify L.S. shaft DO NOT use Falk pawl type backstops in tandem. Refer to Factory all
rotation when viewing drive from the end of the L.S. shaft. applications involving the need for two or more backstops in one
system. The Falk pawl type backstop is designed to operate during
overrunning within a speed range of 400 to 1800 rpm and for creep
drives between 100 and 400 rpm no more than one hour per month.
For continuous speeds less than 400 rpm or greater than 1800 rpm,
refer application to the Factory. Refer to Factory for tilt limits of pawl
type backstops.
TYPE FCB — External Type B1F backstop, pawl type, mounted on
extended high speed shaft.
TYPE FZB — Type B1F External pawl type, mounted on extended
high speed shaft. Motor brackets for drives with external backstops
Internal/cartridge type may be slightly longer and are furnished blank (not drilled). Refer
to price list for information required by Rexnord to drill and/or
mount motor.
Drive Sizes 1020 & 1030 Falk self-contained backstop . . . precision manufactured . . . for
either direction of rotation.
Internal backstop . . . cartridge type . . . compact . . . reliable . . .
no measurable power loss. Backstop housing . . . case hardened on the inner periphery . . .
precision ground. Pawls pivot about hardened steel pins in forged
Can be added . . . removed . . . or reversed without disturbing rotor hub.
revolving elements.
Bearings . . . prelubricated and sealed (or shielded) and require no
Mounted internally on the outer end of the low speed pinion shaft future lubrication.
. . . backstop load transmitted only through low speed gear set.
Grease-purged seals . . . standard on Type B1F.
Positive continuous lubrication . . . 50% or more of backstop is
immersed in oil. Drive dimensions with and without external backstops . . . identical
except for the high speed shaft extension . . . see below.
Drive dimensions with and without backstops . . . identical except
for Dimension W shown on dimension pages.
Backstops are NOT available for drive sizes 1020-1030FC/FZ
with 1.5 thru 4.57:1 ratios or for drive sizes 1020-1090FCB.

TRIPLE REDUCTION FCB3/FZB3 QUADRUPLE REDUCTION — FCB4/FZB4 QUINTUPLE REDUCTION — FCB5/FZB5

DRIVE DRIVE
SIZE H.S. SHAFT Q SIZE H.S. SHAFT Q H.S. SHAFT Q
H C Ratio Range NA l H C NA C NA
UA Key UA Key UA Key
1100 63.28 5.06-13.95 5.24 2.7500 .625 x .625 x 11.000 1100 60.92 3.88 2.1250 .500 x .500 x 9.000 60.44 3.38 1.8750 .500 x .500 x 8.000
17.09-31.39 6.22 2.1250 .500 x .500 x 11.000
H Dimensions are for reference only and are subject to change without notice unless certified.
Q Key extends from the end of the shaft through the backstop.
l Dimension NA for FCB3 = 5.24” for ratios 7.59-20.93:1 and 6.22” for ratios 25.63-47.08:1.

29 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 This Page Intentionally Left Blank

© Rexnord Industries, LLC, 1997, 2006. (311-310) 30

Types FCB & FZB Right Angle Shaft
How to Select
Rating Table Method by Horsepower or Torque

Selection Information Duty Cycle: 8 hours per day.

Use the Horsepower or Torque Rating Method to make Type FB right Driver: 50 hp, 1750 rpm electric motor, coupling connected to drive.
angle drive selections. Output: 125 rpm.
NOTE: If you have an unusual application involving any of the
following conditions, refer to Pages 4 & 5. 1. From Table 4, Page 7 . . . concrete mixer, 3 to 10 hours per
day, intermittent duty requires a 1.25 Service Factor.
• Excessive Overloads 2. Equivalent horsepower — 1.25 x 50 = 62.5 hp.
• Reversing Service 3. Input Speed is 1750 rpm, output is 125 rpm, resulting in a
• Brake Equipped Applications required ratio of 13.9:1.
• Oversized Prime Movers 4. Refer to the Right Angle Drive Horsepower Selection Table on Page
• Multi-Speed or Variable Speed Applications 32 for ratios 2.25 through 47.08. In the 1750 rpm input section
• Excessive Ambient Temperatures find 13.95:1 ratio. Trace right to 104 (nearest hp exceeding
• Excessive Overhung Loads or Thrust Loads equivalent hp) and read Drive Size 1070 at top of column.
• Product Modifications 5. Assume that the Type FZB horizontal right angle shaft,
• Non-Standard Motors or Prime Movers assembly No. 1, L.S. shaft down drive is desired.
• Non-Horizontal Mounting Positions 6. Note that the 104 is in bold print. Therefore, check the Thermal
How to Select By Horsepower Rating Table on Page 41. Using the ACTUAL motor hp,
1. Determine Service Factor or Load Classification Factor — See compare the selection against the thermal horsepower rating
Pages 6 & 7 or 8 & 9. which is 90 hp without fan, which means no fan is required.
2. Calculate Equivalent Horsepower — Multiply the actual 7. Check the overhung load and thrust capacity per instructions
horsepower to be transmitted by the Service Factor. on Pages 42-45.
3. Determine Drive Input Speed, Output Speed and Ratio. 8. Dimensions and weights for this reducer are given on Pages 50
4. Determine Drive Size — Select the nearest standard ratio from & 51.
the Horsepower Rating Tables starting on Page 32. Opposite 9. Place the order for the reducer per instructions on Page 31.
the high speed shaft rpm, and the desired ratio and output
speed, trace right to a horsepower capacity equal to or in How to Select By Torque
excess of the equivalent horsepower calculated in Step 2. Read Simply follow the steps outlined in the horsepower method,
the size of drive at the top of the column. When the required substituting torque values for horsepower.
input speed falls between two tabulated input speeds of a drive Convert the actual required torque to horsepower and check
with the same number of gear reductions, interpolate to against the thermal rating on Page 41. To convert, use the torque
determine drive rating. (lb.-in.) and speed (rpm) at low speed shaft of the drive in the
5. Select Drive Configuration — Type FCB or FZB. See Pages following formula:
48-51. torque x output speed
6. Check Thermal Horsepower Ratings — When the horsepower hp =
rating is shown in bold type, check the drive thermal rating on 63,000
Page 41. For ambient temperatures above 100°F (38°C) or
altitudes above sea level, refer to correction factors on Page 40.
Example
If the thermal horsepower rating is less than the actual required A right angle shaft reducer with a horizontal output shaft , Assembly
horsepower (without service factor), check thermal rating with No. 4, to drive a sludge collector, 24 hours per day, is to deliver
cooling fan. Where the thermal rating exceeds the actual 30,000 pound-inches output torque when output shaft operates at
required horsepower, the drive selection is satisfactory. 1.5 rpm. Source of power is a 2 hp, 1750 rpm motor.
However, when the cooling fan ratings are still not adequate, 1. From Table 4, Page 7. . . sludge collector requires 1.25 Service
consider the use of an electric fan or pump and cooler. Contact Factor for 24 hour service.
the district sales office for ratings, selections and pricing. 2. Equivalent Torque — 1.25 x 30,000 = 37,500 pound-inches.
7. Check Overhung Loads and Thrust Capacity —See Pages 3. Input speed is 1750 rpm, output is 1.5 rpm, resulting in a
42-45 for instructions. required ratio of 1166:1.
8. Check Reducer Dimensions — Pages 48-51. 4. Refer to the Output Torque capacity Table on Page 39. Closest
9. Place the Order — See Page 31 for How to Order. standard ratio is 1207. In the 1750 high speed shaft section,
opposite 1207 ratio, trace right to 57.2 (x 1000) (nearest
Example torque exceeding equivalent torque) and read drive size 1070
Application: Concrete mixer, intermittent duty, right angle drive at top of column.
with low speed shaft down, L.S. shaft coupling connected to a fully 5. Select a Type FCB right angle drive, assembly No. 4.
supported mixer shaft. 6. Published rating is not printed in bold type, therefore, no
thermal problem exists..
7. Check the overhung load and thrust capacity per instructions on
Pages 42-45.
8. Dimensions and weights for this drive are given on Pages
50 & 51.
9. Place the order for the drive per instructions on Page 31.

31 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB & FZB Right Angle Shaft
How to Order
Gear Drive Identification How to Order Type FB Drives
Drives in this selection guide, product nameplates and customer The following information is required to quote or ship to
orders are identified through the following nomenclature. Use the your requirements.
appropriate designations when placing an order or inquiring
through a Rexnord sales office. Drive
A. Size and Type from selection tables.
TYPE B. Assembly figure No., see Page 47.
1 050 F Z B K 4 A S 105.9 C. Ratio.
D. Input and/or output speed (rpm).
1000 RATIO E. Horsepower — Motor or brake
SERIES F. Service Factor for application.
VARIANCE G. Mounting position —Horizontal. See Page 5 for tilt limits.
SIZES H. Auxiliary equipment — Bed plate, couplings, backstop, etc.
MODEL J. Thrust and overhung loads —Specify type and amount.
BASIC DRIVE

H.S. SHAFT NO. OF REDUCTIONS Motor — Prime Mover

ARRANGEMENT A. Type — Motor or engine.
ADDITIONAL PRODUCT B. Horsepower.
L.S. SHAFT DESCRIPTION
ARRANGEMENT C. Speed — rpm.
D. Frame size — Dimension prints if Rexnord is to furnish
mounting surface and/or mount the equipment.
E. Motor — driver characteristics, e.g. enclosure, modifications
Sizes and accessories, altitude, brake, etc.
F. Furnished by: Rexnord... Purchaser...
1020 thru 1050 — Cast iron housings G. Fitted by: Rexnord... Purchaser...
1060 thru 1100 — Fabricated steel housings
Driven Machine
H.S. Shaft Arrangement
A. Required horsepower or torque.
C — Speed Reducer B. RPM
Z — Motoreducer with motor bracket & H.S. coupling C. Application description —Belt conveyor, agitator, etc.
M — Motoreducer with motor plate & H.S. coupling D. Service —Duty cycle, hours per day, reversals per minute
if reversing.
L.S. Shaft Arrangement E. Ambient temperature and operating conditions — Outdoor,
B — Right angle head drive taconite dust, etc.
Additional Product Description Auxiliary Equipment
K — Torque rated basic drive A. Motors — If Rexnord is to furnish, specify complete
information, e.g. current characteristics, enclosure,
Reductions modifications, accessories, etc.
3, 4, 5 B. Couplings — Specify size, type, driver or driven hub bore and
keyway size.
Model C. Backstop —Specify direction of rotation of the low speed shaft
A, B, C, etc. (clockwise or counter clockwise) when looking toward the
drive from the low speed end.
Variance Symbol D. Motor Mount — Specify complete motor information, required
A — Drive with backstop belt centers and mounting arrangement.
B — Drive with fan E. Motor Plate — Specify complete motor, auxiliary equipment
C — Drive with backstop & fan and coupling information.
S — Modified or special drive F. Coupling Guards — Furnish description of couplings or other
equipment to be guarded and all dimensions A-G below.
Ratio
Exact ratio to four digits.

A C

G
D E F

© Rexnord Industries, LLC, 1997, 2006. (311-310) 32

Types FCB3 & FZB3 Right Angle Shaft
Horsepower Ratings
Triple Reduction — Ratios 2.25 through 47.08

High Approx. DRIVE SIZE t

Nominal L.S.
Speed Ratios
Shaft Shaft 1020 1030 1040 1050 1060 1070 1080 1090 1100
±4% rpm
rpm
2.25 780 10.8 21.5 32.0 62.9 117 193 273 386
2.76 640 9.58 19.1 28.1 55.7 109 186 298 351
3.38 520 8.58 17.2 25.4 50.0 94.3 173 253 308
4.13 420 7.57 15.1 22.1 43.6 85.2 151 225 271
5.06 350 6.52 13.1 19.2 39.1 76.9 121 199 210
6.20 280 5.69 11.3 16.4 34.0 68.3 105 152 185
7.59 230 7.47 21.1 30.6 57.4 102 181 128 334 551
9.30 190 6.41 18.3 26.2 49.5 82.7 149 189 282 468
1750 11.39 155 5.60 15.9 23.0 42.7 67.9 123 158 229 409
13.95 125 4.80 13.9 19.6 37.6 57.0 104 136 190 343
17.09 100 4.14 11.5 17.1 31.5 47.4 85.5 111 154 277
20.93 84 3.54 9.57 14.5 26.0 39.2 70.8 90.9 128 231
25.63 68 3.02 7.77 12.6 21.3 31.6 55.8 72.4 108 190
31.39 56 2.54 6.42 11.1 17.3 25.5 47.4 60.4 88.8 154
38.44 45 2.08 4.75 8.05 14.2 21.2 39.0 50.7 71.7 132
47.08 37 1.68‡ 4.05 7.37 11.7 17.4 31.8 41.6 60.5 104
2.25 640 9.25 18.5 27.5 54.1 99.0 160 228 322
2.76 520 8.23 16.4 24.2 47.9 94.4 160 249 293
3.38 420 7.37 14.7 21.8 43.0 81.8 144 210 257
4.13 350 6.50 13.0 19.0 37.5 74.0 126 187 226
5.06 280 5.60 11.2 16.5 33.6 66.8 101 166 175
6.20 230 4.89 9.75 14.1 29.3 59.3 87.0 126 153
7.59 190 6.42 18.1 26.3 49.8 84.5 150 188 277 469
9.30 155 5.50 15.8 22.5 43.0 68.4 123 157 234 398
1430 11.39 125 4.81 13.7 19.7 37.0 56.1 102 130 189 339
13.95 100 4.13 11.7 16.9 31.2 47.1 86.0 113 157 284
17.09 84 3.56 9.48 14.7 25.9 39.1 70.6 91.2 127 229
20.93 68 2.98 7.87 12.5 21.4 32.3 58.4 75.0 106 191
25.63 56 2.48 6.38 10.7 17.5 26.0 46.0 59.7 89.0 157
31.39 45 2.08 5.28 9.16 14.3 21.0 39.0 49.7 73.2 127
38.44 37 1.71 4.00 6.72 11.7 17.5 32.1 41.7 59.1 109
47.08 30 1.38‡ 3.40 6.13 9.64 14.3 26.1 34.2 49.8 85.7
2.25 520 7.96 15.8 23.6 45.7 82.4 134 190 269
2.76 420 7.08 14.2 20.8 41.2 82.1 137 207 244
3.38 350 6.34 12.7 18.8 36.3 71.1 120 175 214
4.13 280 5.60 11.2 16.3 32.3 64.3 104 156 188
5.06 230 4.82 9.66 14.2 28.7 58.0 83.7 138 145
6.20 190 4.21 8.39 12.1 24.9 51.0 72.2 105 127
7.59 155 5.52 15.6 22.6 41.6 69.9 124 156 229 392
9.30 125 4.74 13.6 19.4 35.9 56.5 102 130 194 330
1170 11.39 100 4.14 11.6 17.0 30.7 46.3 84.3 108 157 280
13.95 84 3.55 9.68 14.5 25.8 38.8 71.1 93.0 130 235
17.09 68 3.02 7.81 12.7 21.4 32.2 58.2 75.3 105 189
20.93 56 2.45 6.48 10.7 17.7 26.6 48.2 61.8 87.4 158
25.63 45 2.04 5.25 8.83 14.4 21.4 37.9 49.2 73.4 129
31.39 37 1.71 4.34 7.54 11.7 17.3 32.1 41.0 60.3 105
38.44 30 1.40 3.35 5.60 9.60 14.4 26.4 34.3 48.7 89.9
47.08 25 1.13‡ 2.85 5.00 7.93 11.7 21.5 28.1 41.0 70.6
t Mechanical hp ratings shown in bold type exceed drive thermal hp ratings. Check required hp (without service factor) against thermal hp ratings on Page 41. For ratings at speeds
higher than 1750 rpm and for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, reduce hp rating proportionately.
‡ Size 1020 with 47.08:1 ratio is a quadruple reduction (FCB4 or FZB4) drive.

33 (311-310) © The Falk Corporation, 1997, 2004.

 Types FCB3 & FZB3 Right Angle Shaft
Torque Ratings
Triple Reduction — Ratios 2.25 through 47.08
(TORQUE IS IN POUND INCHES AT LOW SPEED SHAFT . . . MULTIPLY VALUES LISTED BELOW BY 1000)

High Approx. DRIVE SIZE†

Nominal L.S.
Speed Ratios
Shaft Shaft 1020 1030 1040 1050 1060 1070 1080 1090 1100
±4% rpm
rpm
2.25 780 .845 1.76 2.57 5.08 10.1 15.8 23.2 33.1
2.76 640 .931 1.91 2.80 5.55 11.2 18.1 30.7 36.0
3.38 520 1.01 2.09 3.04 6.16 12.1 20.8 31.7 39.6
4.13 420 1.10 2.20 3.30 6.44 13.5 22.2 34.3 42.5
5.06 350 1.16 2.38 3.45 7.02 14.6 21.3 35.5 41.0
6.20 280 1.25 2.50 3.69 7.45 15.8 22.6 33.9 43.8
7.59 230 2.06 5.99 8.38 15.6 27.4 49.5 65.5 91.3 151
9.30 190 2.20 6.32 8.91 16.6 27.8 50.2 66.2 92.4 163
1750 11.39 155 2.32 6.68 9.41 17.7 28.1 50.6 67.2 94.0 169
13.95 125 2.46 7.02 9.98 18.7 28.4 51.2 67.6 95.2 171
17.09 100 2.60 7.25 10.5 19.1 28.7 51.8 68.8 96.0 174
20.93 84 2.75 7.32 11.2 19.2 28.9 52.3 69.2 96.9 175
25.63 68 2.84 7.37 11.8 19.4 29.2 52.9 69.9 98.1 178
31.39 56 2.85 7.41 12.2 19.4 29.4 53.3 70.5 99.0 180
38.44 45 2.86 6.75 11.3 19.6 29.6 53.6 71.0 99.8 181
47.08 37 2.88‡ 6.87 12.1 19.7 29.9 54.1 71.6 101 183
2.25 640 .884 1.87 2.71 5.35 10.5 16.0 23.8 33.7
2.76 520 .978 2.00 2.95 5.84 11.8 19.2 31.4 36.7
3.38 420 1.06 2.18 3.19 6.49 12.8 21.1 32.4 40.4
4.13 350 1.15 2.32 3.47 6.78 14.3 22.6 34.9 43.4
5.06 280 1.22 2.50 3.62 7.39 15.5 21.7 36.3 41.9
6.20 230 1.32 2.64 3.89 7.84 16.7 23.1 34.3 44.4
7.59 190 2.17 6.29 8.82 16.6 27.8 50.2 66.1 92.7 158
9.30 155 2.31 6.67 9.37 17.7 28.2 50.7 67.3 93.8 169
1430 11.39 125 2.44 7.04 9.87 18.8 28.5 51.3 67.7 94.9 172
13.95 100 2.59 7.24 10.5 19.0 28.7 51.8 68.7 93.6 174
17.09 84 2.74 7.32 11.0 19.2 29.0 52.4 69.1 96.9 176
20.93 68 2.84 7.37 11.8 19.3 29.2 52.8 69.9 98.2 177
25.63 56 2.85 7.41 12.2 19.5 29.4 53.4 70.5 98.9 180
31.39 45 2.86 7.45 12.3 19.6 29.7 53.6 71.0 99.8 182
38.44 37 2.88 6.96 11.5 19.8 29.9 54.0 71.5 101 183
47.08 30 2.90‡ 7.06 12.3 19.8 30.1 54.3 72.0 101 184
2.25 520 .931 1.94 2.83 5.52 10.7 16.3 24.3 34.4
2.76 420 1.03 2.12 3.10 6.14 12.6 20.1 31.9 37.5
3.38 350 1.11 2.31 3.37 6.69 13.6 21.6 33.0 41.1
4.13 280 1.22 2.44 3.63 7.14 15.2 22.8 35.7 44.1
5.06 230 1.28 2.64 3.82 7.71 16.4 22.0 36.8 42.3
6.20 190 1.39 2.78 4.07 8.15 17.6 23.4 34.9 45.1
7.59 155 2.28 6.63 9.26 16.9 28.1 50.7 67.0 93.7 161
9.30 125 2.43 7.02 9.87 18.0 28.4 51.4 68.1 95.1 172
1170 11.39 100 2.57 7.29 10.4 19.1 28.7 51.9 68.7 96.4 173
13.95 84 2.72 7.32 11.0 19.2 28.9 52.3 69.1 97.5 176
17.09 68 2.84 7.37 11.6 19.4 29.2 52.8 69.8 97.9 177
20.93 56 2.85 7.41 12.3 19.5 29.4 53.3 70.4 99.0 179
25.63 45 2.87 7.45 12.4 19.6 29.6 53.7 71.0 99.7 181
31.39 37 2.87 7.49 12.4 19.6 29.9 54.0 71.6 101 184
38.44 30 2.88 7.12 11.8 19.8 30.1 54.3 71.9 101 184
47.08 25 2.90‡ 7.23 12.2 19.9 30.1 54.7 72.3 102 185
† Torque ratings shown in bold type exceed drive thermal hp ratings. Convert required torque (without service factor) to hp and refer to Page 41 for thermal ratings. For ratings at
speeds higher than 1750 rpm and for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, use torques for 580 rpm.
‡ Size 1020 with 47.08:1 ratio is a quadruple reduction (FCB4 or FZB4) drive.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 34

Types FCB3 & FZB3 Right Angle Shaft
Horsepower Ratings
Triple Reduction — Ratios 2.25 through 47.08
High Approx. DRIVE SIZE t
Nominal L.S.
Speed Ratios
Shaft Shaft 1020 1030 1040 1050 1060 1070 1080 1090 1100
±4% rpm
rpm
2.25 390 6.37 12.0 18.0 34.8 62.8 102 145 205
2.76 320 5.67 10.9 16.3 31.5 66.7 110 158 186
3.38 260 5.08 9.63 14.4 27.5 57.8 91.1 133 163
4.13 210 4.48 8.64 12.6 25.2 51.9 79.4 118 143
5.06 175 3.86 7.36 11.2 21.7 45.1 63.6 105 110
6.20 140 3.37 6.38 9.34 18.8 38.7 54.8 79.4 96.8
7.59 115 4.42 12.0 18.0 30.9 52.8 93.8 118 174 299
9.30 95 3.79 10.5 15.5 26.7 42.6 76.9 97.8 146 250
870 11.39 77 3.31 8.69 13.6 23.0 34.9 63.6 81.3 118 212
13.95 62 2.76 7.26 11.6 19.4 29.2 53.5 70.1 97.7 178
17.09 50 2.26 5.86 9.99 16.0 24.2 43.8 56.7 79.3 143
20.93 42 1.84 4.86 8.00 13.2 20.0 36.2 46.5 65.8 119
25.63 34 1.53 3.93 6.62 10.8 16.1 28.4 37.0 55.2 97.3
31.39 28 1.28 3.25 5.65 8.80 13.0 24.1 30.7 45.3 78.6
38.44 22 1.05 2.61 4.45 7.19 10.8 19.8 25.8 36.5 67.5
47.08 18 .845‡ 2.20 3.83 5.93 8.78 16.1 21.1 30.8 53.0
2.25 320 5.53 10.0 15.1 29.1 52.7 85.5 122 173
2.76 260 4.92 9.12 13.6 26.4 58.4 93.2 132 156
3.38 210 4.41 8.06 12.1 23.0 50.6 76.4 112 137
4.13 175 3.89 7.22 10.5 21.1 43.5 66.5 99.4 120
5.06 140 3.35 6.14 9.33 18.2 37.8 53.2 87.6 92.6
6.20 115 2.93 5.33 7.80 15.7 32.3 45.9 66.5 81.1
7.59 95 3.84 10.0 15.1 25.6 44.1 78.4 98.6 145 249
9.30 77 3.29 8.75 13.5 22.0 35.6 64.2 81.7 122 209
720 11.39 62 2.82 7.23 11.8 19.0 29.1 53.0 67.9 98.7 177
13.95 50 2.29 6.05 9.95 16.1 24.4 44.6 58.5 81.5 148
17.09 42 1.88 4.87 8.31 13.4 20.2 36.5 47.3 66.1 119
20.93 34 1.53 4.04 6.65 11.0 16.7 30.2 38.7 54.8 99.3
25.63 28 1.27 3.27 5.50 8.98 13.4 23.7 30.8 46.0 81.1
31.39 22 1.06 2.70 4.69 7.31 10.8 20.1 25.6 37.7 65.5
38.44 18 .870 2.20 3.70 5.97 8.95 16.5 21.4 30.4 56.2
47.08 15 .701‡ 1.85 3.18 4.93 7.30 13.4 17.5 25.6 44.1
2.25 260 4.70 8.18 12.3 23.8 43.1 70.0 99.4 141
2.76 210 4.18 7.43 11.1 21.5 48.5 76.2 108 128
3.38 175 3.75 6.56 9.84 18.8 43.5 62.4 91.5 112
4.13 140 3.31 5.88 8.55 17.2 35.5 54.3 81.2 98.0
5.06 115 2.85 5.00 7.59 14.8 30.8 43.5 71.6 75.6
6.20 95 2.49 4.33 6.35 12.8 26.4 37.4 54.2 65.4
7.59 77 3.26 8.18 12.3 20.6 35.8 63.8 80.3 118 200
9.30 62 2.75 7.10 11.1 17.8 28.9 52.2 66.4 99.6 170
580 11.39 50 2.28 5.86 9.84 15.4 23.6 43.1 55.1 80.3 144
13.95 42 1.86 4.90 8.07 13.1 19.8 36.2 47.5 66.3 121
17.09 34 1.52 3.95 6.73 10.8 16.4 29.6 38.4 53.7 96.9
20.93 28 1.23 3.27 5.39 8.93 13.5 24.5 31.4 44.5 80.6
25.63 22 1.02 2.64 4.45 7.27 10.8 19.2 24.9 37.3 65.8
31.39 18 .859 2.18 3.80 5.92 8.72 16.3 20.7 30.6 53.1
38.44 15 .703 1.78 2.99 4.83 7.24 13.3 17.3 24.6 45.6
47.08 12.5 .566‡ 1.49 2.57 3.98 5.90 10.8 14.2 20.7 35.7
t Mechanical hp ratings shown in bold type exceed drive thermal hp ratings. Check required hp (without service factor) against thermal hp ratings on Page 41. For ratings at
speeds higher than 1750 rpm and for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, reduce hp rating proportionately.
‡ Size 1020 with 47.08:1 ratio is a quadruple reduction (FCB4 or FZB4) drive.

35 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB3 & FZB3 Right Angle Shaft
Torque Ratings
Triple Reduction — Ratios 2.25 through 47.08
(TORQUE IS IN POUND INCHES AT LOW SPEED SHAFT . . . MULTIPLY VALUES LISTED BELOW BY 1000)

High Approx. DRIVE SIZE †

Nominal L.S.
Speed Ratios
Shaft Shaft 1020 1030 1040 1050 1060 1070 1080 1090 1100
±4% rpm
rpm
2.25 390 1.00 1.99 2.90 5.65 10.9 16.7 24.9 35.3
2.76 320 1.11 2.18 3.27 6.32 13.7 21.6 32.8 38.4
3.38 260 1.20 2.35 3.47 6.81 14.9 22.0 33.6 42.2
4.13 210 1.31 2.53 3.77 7.49 16.6 23.4 36.3 45.2
5.06 175 1.38 2.70 4.07 7.84 17.2 22.5 37.7 43.2
6.20 140 1.49 2.87 4.24 8.28 17.9 23.9 35.5 46.1
7.59 115 2.45 6.86 9.92 16.9 28.6 51.6 68.2 95.7 165
9.30 95 2.62 7.29 10.6 18.0 28.8 52.1 68.9 96.2 175
870 11.39 77 2.76 7.34 11.2 19.2 29.1 52.6 69.5 97.4 177
13.95 62 2.85 7.38 11.9 19.4 29.3 53.0 70.1 98.5 179
17.09 50 2.86 7.43 12.3 19.5 29.5 53.4 70.7 99.4 180
20.93 42 2.88 7.48 12.4 19.6 29.7 53.8 71.2 100 182
25.63 34 2.89 7.50 12.5 19.8 29.9 54.2 71.8 101 183
31.39 28 2.89 7.54 12.5 19.9 30.2 54.5 72.1 102 185
38.44 22 2.91 7.46 12.6 20.0 30.3 54.7 72.7 102 186
47.08 18 2.91‡ 7.51 12.6 20.0 30.4 55.1 73.0 103 187
2.25 320 1.05 2.00 2.95 5.72 11.1 16.9 25.4 36.0
2.76 260 1.16 2.21 3.30 6.40 14.5 22.0 33.1 38.8
3.38 210 1.26 2.38 3.53 6.89 15.8 22.3 34.2 42.8
4.13 175 1.37 2.56 3.80 7.58 16.7 23.7 36.9 45.8
5.06 140 1.45 2.72 4.07 7.95 17.5 22.6 38.0 44.0
6.20 115 1.56 2.87 4.27 8.36 18.1 24.2 36.0 46.7
7.59 95 2.58 6.90 10.1 16.9 28.8 52.1 68.9 96.4 166
9.30 77 2.74 7.34 11.2 18.0 29.1 52.6 69.5 97.1 177
720 11.39 62 2.84 7.38 11.7 19.2 29.3 53.0 70.2 98.5 178
13.95 50 2.85 7.43 12.3 19.5 29.6 53.4 70.6 99.3 180
17.09 42 2.87 7.46 12.4 19.7 29.7 53.8 71.2 100 181
20.93 34 2.89 7.51 12.4 19.7 30.0 54.2 71.6 101 183
25.63 28 2.90 7.54 12.5 19.9 30.1 54.6 72.3 102 185
31.39 22 2.89 7.57 12.5 19.9 30.3 54.9 72.7 102 186
38.44 18 2.91 7.60 12.6 20.0 30.4 55.1 72.9 103 187
47.08 15 2.92‡ 7.63 12.6 20.1 30.5 55.4 73.2 103 188
2.25 260 1.11 2.03 2.98 5.79 11.2 17.2 25.7 36.4
2.76 210 1.23 2.23 3.33 6.46 15.0 22.5 33.6 39.6
3.38 175 1.33 2.40 3.56 6.99 16.9 22.6 34.8 43.4
4.13 140 1.45 2.59 3.85 7.68 16.9 24.0 37.4 46.4
5.06 115 1.53 2.75 4.10 8.03 17.6 23.1 38.6 44.4
6.20 95 1.65 2.88 4.32 8.45 18.4 24.5 36.3 46.7
7.59 77 2.72 7.01 10.2 16.9 29.0 52.6 69.6 97.3 166
9.30 62 2.85 7.39 11.4 18.0 29.3 53.0 70.2 98.4 178
580 11.39 50 2.85 7.43 12.2 19.2 29.5 53.5 70.7 99.4 180
13.95 42 2.88 7.47 12.4 19.7 29.8 53.8 71.2 100 182
17.09 34 2.88 7.51 12.4 19.7 30.0 54.1 71.8 101 183
20.93 28 2.89 7.55 12.5 19.9 30.1 54.6 72.1 102 185
25.63 22 2.89 7.56 12.6 20.0 30.1 54.9 72.5 102 186
31.39 18 2.91 7.59 12.6 20.1 30.4 55.3 72.9 103 187
38.44 15 2.92 7.63 12.7 20.1 30.5 55.2 73.1 103 188
47.08 12.5 2.93‡ 7.63 12.7 20.2 30.6 55.4 73.7 104 189
† Torque ratings shown in bold type exceed drive thermal hp ratings. Convert required torque (without service factor) to hp and refer to Page 41 for thermal ratings. For ratings at
speeds higher than 1750 rpm and for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, use torques for 580 rpm.
‡ Size 1020 with 47.08:1 ratio is a quadruple reduction (FCB4 or FZB4) drive.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 36

Types FCB4 & FZB4 Right Angle Shaft
Horsepower Ratings
Quadruple Reduction — Ratios 57.66 through 291.9
High Approx. DRIVE SIZE t
Nominal L.S.
Speed Ratios
Shaft Shaft 1020 1030 1040 1050 1060 1070 1080 1090 1100
±4% rpm
rpm
57.66 30 1.36 3.15 5.58 8.03 14.2 26.3 33.3 48.7 86.2
70.62 25 1.12 2.84 4.96 7.18 11.8 21.3 27.6 40.8 70.8
86.50 20 .905 2.44 4.01 6.26 9.53 17.7 22.7 33.8 60.0
105.9 16.5 .751 1.96 3.34 5.18 7.89 14.2 18.5 27.9 48.4
1750 129.7 13.5 .630 1.62 2.67 4.27 6.39 11.7 15.1 22.4 39.4
158.9 11.0 .515 1.31 2.20 3.47 5.27 10.0 12.3 18.9 33.8
194.6 9.0 ... 1.08 1.82 2.82 4.29 7.88 10.2 14.9 26.0
238.4 7.5 ... .880 1.47 2.30 3.61 6.78 8.54 12.1 22.3
291.9 6.0 ... .715‡ 1.08‡ 1.81‡ 2.99 5.56 6.98 10.2 17.4
57.66 25 1.12 2.70 4.61 6.90 11.6 21.6 27.4 40.0 71.6
70.62 20 .915 2.40 4.07 6.15 9.71 17.5 22.6 33.5 58.2
86.50 16.5 .742 2.00 3.29 5.14 7.82 14.6 18.7 27.7 49.3
105.9 13.5 .615 1.61 2.74 4.25 6.47 11.7 15.2 22.9 39.7
1430 129.7 11.0 .516 1.33 2.19 3.50 5.24 9.63 12.4 18.4 32.4
158.9 9.0 .422 1.07 1.80 2.84 4.32 8.21 10.1 15.5 27.8
194.6 7.5 ... .886 1.49 2.31 3.52 6.46 8.37 12.2 21.3
238.4 6.0 ... .720 1.20 1.88 2.95 5.56 7.00 9.95 18.3
291.9 5.0 ... .586‡ .885‡ 1.56‡ 2.45 4.56 5.72 8.36 14.3
57.66 20 .917 2.33 3.80 5.94 9.56 17.8 22.5 32.9 59.4
70.62 16.5 .751 1.97 3.34 5.05 7.98 14.4 18.6 27.6 47.9
86.50 13.5 .609 1.64 2.70 4.22 6.42 12.0 15.3 22.8 40.6
105.9 11.0 .505 1.32 2.25 3.49 5.31 9.57 12.5 18.8 32.7
1170 129.7 9.0 .423 1.09 1.79 2.87 4.30 7.91 10.2 15.1 26.6
158.9 7.5 .346 .881 1.48 2.33 3.55 6.74 8.29 12.7 22.8
194.6 6.0 ... .726 1.23 1.89 2.89 5.30 6.87 10.0 17.5
238.4 5.0 ... .591 .990 1.55 2.42 4.56 5.74 8.16 15.0
291.9 4.0 ... .481‡ .726‡ 1.30‡ 2.01 3.74 4.69 6.86 11.7
57.66 15 .685 1.78 2.85 4.65 7.15 13.3 16.9 24.7 44.6
70.62 12.5 .560 1.47 2.50 3.78 5.97 10.7 13.9 20.7 35.9
86.50 10.0 .454 1.22 2.01 3.16 4.80 8.95 11.5 17.1 30.4
105.9 8.3 .377 .985 1.68 2.60 3.97 7.15 9.34 14.1 24.5
870 129.7 6.8 .315 .814 1.34 2.14 3.21 5.91 7.59 11.3 19.9
158.9 5.5 .258 .657 1.10 1.74 2.65 5.03 6.19 9.50 17.1
194.6 4.5 ... .542 .918 1.41 2.15 3.96 5.13 7.47 13.1
238.4 3.8 ... .440 .739 1.15 1.81 3.40 4.29 6.09 11.2
291.9 3.0 ... .359‡ .542‡ .966‡ 1.50 2.79 3.50 5.12 8.76
57.66 12.5 .568 1.48 2.37 3.86 5.94 11.1 14.0 20.5 37.1
70.62 10.0 .465 1.22 2.07 3.13 4.96 8.92 11.6 17.2 29.8
86.50 8.3 .377 1.02 1.67 2.62 3.98 7.43 9.53 14.2 25.2
105.9 6.8 .312 .817 1.39 2.16 3.29 5.94 7.75 11.7 20.3
720 129.7 5.5 .261 .675 1.11 1.78 2.66 4.90 6.30 9.38 16.5
158.9 4.5 .214 .545 .916 1.44 2.19 4.17 5.14 7.88 14.2
194.6 3.8 ... .449 .762 1.17 1.79 3.28 4.26 6.20 10.9
238.4 3.0 ... .365 .613 .955 1.50 2.82 3.56 5.05 9.30
291.9 2.5 ... .298‡ .450‡ .801‡ 1.24 2.31 2.90 4.24 7.26
57.66 10.0 .459 1.20 1.92 3.12 4.80 8.94 11.3 16.6 30.0
70.62 8.3 .375 .985 1.67 2.53 4.00 7.22 9.36 13.9 24.1
86.50 6.8 .304 .821 1.35 2.12 3.22 6.01 7.70 11.5 20.4
105.9 5.5 .252 .659 1.12 1.74 2.66 4.80 6.26 9.44 16.4
580 129.7 4.5 .211 .545 .896 1.43 2.15 3.96 5.09 7.58 13.4
158.9 3.8 .172 .440 .739 1.17 1.77 3.37 4.15 6.37 11.4
194.6 3.0 ... .362 .616 .946 1.44 2.65 3.44 5.01 8.77
238.4 2.5 ... .294 .494 .771 1.21 2.28 2.87 4.08 7.51
291.9 2.0 ... .241‡ .363‡ .646‡ 1.00 1.87 2.34 3.43 5.87
t Since thermal ratings for drives listed above exceed mechanical hp ratings, it is not necessary to check for thermal limitations. For ratings at speeds higher than 1750 rpm and
for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, reduce hp rating proportionately.
‡ Sizes 1030 thru 1050 with 291.9:1 ratio are quintuple reduction (FCB5 or FZB5) drives.

37 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB4 & FZB4 Right Angle Shaft
Torque Ratings
Quadruple Reduction — Ratios 57.66 through 291.9
(TORQUE IS IN POUND INCHES AT LOW SPEED SHAFT . . . MULTIPLY VALUES LISTED BELOW BY 1000)

High Approx. DRIVE SIZE †

Nominal L.S.
Speed Ratios
Shaft Shaft 1020 1030 1040 1050 1060 1070 1080 1090 1100
±4% rpm
rpm
57.66 30 2.88 6.70 11.7 17.3 30.1 54.4 72.1 101 181
70.62 25 2.91 7.35 12.5 19.1 30.1 54.8 72.6 102 186
86.50 20 2.91 7.59 12.6 20.0 30.3 54.8 72.8 103 187
105.9 16.5 2.92 7.61 12.6 20.1 30.4 55.3 73.1 103 188
1750 129.7 13.5 2.93 7.63 12.7 20.2 30.6 55.3 73.7 104 189
158.9 11.0 2.93 7.65 12.7 20.2 30.7 55.7 73.8 104 189
194.6 9.0 ... 7.67 12.4 20.3 30.8 55.9 74.0 105 191
238.4 7.5 ... 7.70 12.7 20.4 30.9 56.1 74.4 105 192
291.9 6.0 ... 7.61‡ 11.1‡ 19.1‡ 30.9 56.2 74.6 105 192
57.66 25 2.91 7.02 11.9 18.2 30.1 54.7 72.6 102 184
70.62 20 2.91 7.60 12.6 20.0 30.3 55.1 72.7 102 187
86.50 16.5 2.92 7.62 12.7 20.1 30.4 55.4 73.3 103 188
105.9 13.5 2.92 7.65 12.7 20.2 30.5 55.7 73.5 104 189
1430 129.7 11.0 2.93 7.67 12.7 20.3 30.7 55.7 74.1 104 190
158.9 9.0 2.94 7.65 12.7 20.3 30.8 55.9 74.1 105 191
194.6 7.5 ... 7.70 12.4 20.4 30.9 56.1 74.3 105 191
238.4 6.0 ... 7.71 12.7 20.4 30.9 56.3 74.6 105 192
291.9 5.0 ... 7.63‡ 11.1‡ 20.2‡ 31.0 56.4 74.8 106 193
57.66 20 2.91 7.41 11.9 19.1 30.3 55.1 72.9 102 187
70.62 16.5 2.92 7.62 12.6 20.1 30.4 55.4 73.2 103 188
86.50 13.5 2.93 7.63 12.7 20.2 30.5 55.6 73.3 104 189
105.9 11.0 2.94 7.67 12.7 20.3 30.6 55.7 73.9 104 190
1170 129.7 9.0 2.94 7.68 12.7 20.3 30.8 56.0 74.5 104 190
158.9 7.5 2.95 7.70 12.8 20.3 30.9 56.1 74.4 105 191
194.6 6.0 ... 7.71 12.5 20.4 31.0 56.2 74.6 105 192
238.4 5.0 ... 7.74 12.8 20.5 31.0 56.4 74.8 106 193
291.9 4.0 ... 7.66‡ 11.2‡ 20.6‡ 31.1 56.6 75.0 106 193
57.66 15 2.92 7.61 12.0 20.1 30.5 55.3 73.6 103 188
70.62 12.5 2.93 7.65 12.7 20.2 30.6 55.4 73.5 104 189
86.50 10.0 2.94 7.64 12.7 20.3 30.7 55.8 74.1 104 190
105.9 8.3 2.95 7.69 12.8 20.3 30.8 56.0 74.3 105 191
870 129.7 6.8 2.94 7.71 12.8 20.4 30.9 56.2 74.5 105 192
158.9 5.5 2.96 7.72 12.8 20.4 31.0 56.3 74.7 105 193
194.6 4.5 ... 7.74 12.6 20.4 31.0 56.5 74.9 106 193
238.4 3.8 ... 7.75 12.9 20.5 31.2 56.5 75.1 106 194
291.9 3.0 ... 7.68‡ 11.2‡ 20.5‡ 31.2 56.7 75.3 106 194
57.66 12.5 2.93 7.65 12.1 20.2 30.6 55.8 73.7 104 189
70.62 10.0 2.94 7.67 12.7 20.2 30.7 55.8 74.1 104 190
86.50 8.3 2.95 7.71 12.8 20.3 30.8 56.0 74.2 105 190
105.9 6.8 2.95 7.71 12.8 20.4 30.9 56.2 74.5 105 192
720 129.7 5.5 2.95 7.73 12.8 20.5 30.9 56.3 74.7 105 192
158.9 4.5 2.96 7.74 12.9 20.4 31.0 56.4 74.9 106 193
194.6 3.8 ... 7.75 12.6 20.5 31.2 56.6 75.2 106 194
238.4 3.0 ... 7.76 12.9 20.5 31.2 56.7 75.3 106 194
291.9 2.5 ... 7.71‡ 11.3‡ 20.6‡ 31.2 56.8 75.3 106 195
57.66 10.0 2.94 7.70 12.2 20.3 30.7 55.8 73.8 104 190
70.62 8.3 2.94 7.69 12.7 20.3 30.8 56.0 74.3 105 191
86.50 6.8 2.95 7.71 12.8 20.4 30.9 56.2 74.5 105 191
105.9 5.5 2.95 7.72 12.8 20.4 31.0 56.4 74.7 105 192
580 129.7 4.5 2.96 7.74 12.9 20.4 31.0 56.5 75.0 106 194
158.9 3.8 2.96 7.76 12.9 20.6 31.1 56.6 75.1 106 193
194.6 3.0 ... 7.76 12.6 20.5 31.2 56.7 75.3 106 194
238.4 2.5 ... 7.76 12.9 20.6 31.2 56.9 75.4 107 195
291.9 2.0 ... 7.74‡ 11.3‡ 20.6‡ 31.2 57.1 75.5 107 195
† Since thermal ratings for drives listed above exceed mechanical hp ratings, it is not necessary to check for thermal limitations. For ratings at speeds higher than 1750 rpm and
for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, use torques for 580 rpm.
‡ Sizes 1030 thru 1050 with 291.9:1 ratio are quintuple reduction (FCB5 or FZB5) drives.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 38

Types FCB5 & FZB5 Right Angle Shaft
Horsepower Ratings
Quintuple Reduction — Ratios 357.5 through 1810

High Approx. DRIVE SIZE

Nominal L.S.
Speed Ratios
Shaft Shaft 1030 1040 1050 1060 1070 1080 1090 1100
±5% rpm
rpm
357.5 5.0 .598 .967 1.57 2.37 4.36 5.60 8.40 14.6
437.9 4.0 .492 .837 1.27 1.92 3.53 4.58 6.86 11.7
536.3 3.2 .410 .674 1.06 1.58 2.77 3.71 5.61 9.63
656.8 2.7 .329 .561 .874 1.27 2.34 3.07 4.55 8.20
1750 804.5 2.2 .272 .447 .719 1.12 1.92 2.57 3.65 7.02
985.3 1.8 .219 .369 .583 .899 1.57 2.11 3.03 5.52
1207 1.5 .180 .309 .473 .721 1.33 1.74 2.58 4.31
1478 1.2 .147 .246 .385 .597 1.09 1.46 2.07 3.61
1810 1.0 .123 .211 .317 .485 .819 1.19 1.74 2.82
357.5 4.0 .489 .793 1.28 1.94 3.57 4.59 6.88 12.0
437.9 3.2 .403 .685 1.04 1.57 2.89 3.75 5.62 9.56
536.3 2.7 .335 .552 .868 1.30 2.27 3.04 4.60 7.89
656.8 2.2 .269 .459 .716 1.04 1.92 2.52 3.73 6.71
1430 804.5 1.8 .222 .366 .588 .920 1.57 2.10 2.99 5.75
985.3 1.5 .179 .302 .477 .735 1.29 1.72 2.48 4.52
1207 1.2 .148 .253 .387 .590 1.09 1.43 2.11 3.53
1478 1.0 .120 .201 .315 .488 .889 1.19 1.69 2.96
1810 .80 .101 .173 .259 .397 .670 .971 1.42 2.31
357.5 3.2 .401 .651 1.05 1.59 2.93 3.76 5.64 9.82
437.9 2.7 .330 .562 .853 1.29 2.37 3.08 4.61 7.84
536.3 2.2 .275 .452 .711 1.06 1.86 2.49 3.77 6.47
656.8 1.8 .220 .376 .586 .853 1.57 2.06 3.05 5.50
1170 804.5 1.5 .182 .300 .482 .754 1.29 1.72 2.45 4.71
985.3 1.2 .147 .247 .391 .602 1.05 1.41 2.03 3.70
1207 1.0 .121 .207 .317 .483 .890 1.17 1.73 2.89
1478 .80 .098 .165 .258 .400 .729 .976 1.39 2.42
1810 .65 .082 .142 .212 .325 .548 .796 1.16 1.89
357.5 2.5 .299 .486 .784 1.19 2.18 2.81 4.21 7.33
437.9 2.0 .246 .418 .635 .961 1.77 2.29 3.44 5.85
536.3 1.6 .205 .337 .530 .792 1.38 1.86 2.81 4.82
656.8 1.3 .164 .280 .437 .636 1.17 1.54 2.28 4.10
870 804.5 1.1 .135 .223 .359 .561 .958 1.28 1.82 3.51
985.3 .90 .109 .184 .291 .449 .785 1.05 1.51 2.76
1207 .75 .090 .155 .236 .360 .663 .871 1.29 2.15
1478 .60 .073 .123 .192 .298 .543 .727 1.03 1.81
1810 .50 .061 .105 .158 .242 .407 .593 .867 1.41
357.5 2.0 .248 .403 .650 .984 1.81 2.33 3.49 6.08
437.9 1.6 .204 .347 .526 .796 1.47 1.90 2.85 4.85
536.3 1.3 .170 .279 .439 .656 1.15 1.54 2.33 4.00
656.8 1.1 .136 .232 .362 .527 .970 1.27 1.89 3.40
720 804.5 .90 .112 .185 .297 .465 .794 1.06 1.51 2.91
985.3 .75 .091 .152 .241 .372 .650 .872 1.25 2.29
1207 .60 .075 .128 .196 .298 .549 .722 1.07 1.78
1478 .50 .061 .102 .159 .247 .449 .602 .875 1.50
1810 .40 .051 .087 .131 .200 .337 .491 .718 1.17
357.5 1.6 .200 .326 .524 .794 1.46 1.88 2.82 4.91
437.9 1.3 .164 .280 .425 .643 1.18 1.53 2.30 3.91
536.3 1.1 .137 .225 .354 .529 .926 1.24 1.88 3.23
656.8 .90 .110 .187 .292 .425 .782 1.03 1.52 2.75
580 804.5 .75 .090 .149 .240 .375 .640 .857 1.22 2.35
985.3 .60 .073 .123 .194 .300 .524 .703 1.01 1.84
1207 .50 .060 .103 .158 .240 .443 .582 .862 1.44
1478 .40 .049 .082 .128 .199 .362 .485 .691 1.21
1810 .32 .041 .070 .106 .162 .272 .396 .579 .941
t Since thermal ratings for drives listed above exceed mechanical hp ratings, it is not necessary to check for thermal limitations. For ratings at speeds higher than 1750 rpm and for
variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, reduce hp rating proportionately.

39 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB5 & FZB5 Right Angle Shaft
Torque Ratings
Quintuple Reduction — Ratios 357.5 through 1810
(TORQUE IS IN POUND INCHES AT LOW SPEED SHAFT . . . MULTIPLY VALUES LISTED BELOW BY 1000)

High Approx. DRIVE SIZE †

Nominal L.S.
Speed Ratios
Shaft Shaft 1030 1040 1050 1060 1070 1080 1090 1100
±5% rpm
rpm
357.5 5.0 7.73 12.4 20.5 31.0 56.4 74.8 106 193
437.9 4.0 7.74 12.9 20.5 31.1 56.5 75.0 106 194
536.3 3.2 7.76 12.9 20.5 31.1 56.8 75.2 106 194
656.8 2.7 7.77 12.9 20.6 31.2 56.8 75.3 106 194
1750 804.5 2.2 7.79 12.9 20.6 31.1 57.0 75.6 107 195
985.3 1.8 7.78 13.0 20.6 31.3 57.0 75.7 107 195
1207 1.5 7.78 12.8 20.6 31.3 57.2 75.6 107 196
1478 1.2 7.83 13.0 20.7 31.4 57.3 76.1 107 196
1810 1.0 7.82 13.0 20.7 31.4 53.3 76.1 108 196
357.5 4.0 7.74 12.4 20.4 31.1 56.6 75.1 106 194
437.9 3.2 7.76 12.9 20.5 31.1 56.6 75.2 106 194
536.3 2.7 7.76 12.9 20.6 31.3 56.9 75.4 106 195
656.8 2.2 7.78 12.9 20.6 31.2 57.1 75.6 107 195
1430 804.5 1.8 7.78 13.0 20.6 31.3 57.1 75.6 107 195
985.3 1.5 7.79 13.0 20.6 31.3 57.3 75.6 107 196
1207 1.2 7.83 12.8 20.7 31.4 57.4 76.0 107 196
1478 1.0 7.82 13.0 20.7 31.4 57.2 75.9 107 196
1810 .80 7.85 13.0 20.7 31.5 53.4 76.0 107 197
357.5 3.2 7.76 12.4 20.5 31.1 56.7 75.2 106 194
437.9 2.7 7.77 12.9 20.6 31.2 56.8 75.5 106 195
536.3 2.2 7.79 12.9 20.6 31.2 57.0 75.5 107 195
656.8 1.8 7.77 13.0 20.6 31.3 57.0 75.6 107 195
1170 804.5 1.5 7.80 13.0 20.7 31.4 57.3 75.7 107 195
985.3 1.2 7.81 13.0 20.7 31.4 57.0 75.7 107 196
1207 1.0 7.82 12.8 20.7 31.4 57.2 76.0 107 196
1478 .80 7.80 13.0 20.7 31.5 57.4 76.1 108 196
1810 .65 7.79 13.1 20.7 31.5 53.3 76.2 107 197
357.5 2.5 7.78 12.5 20.6 31.3 56.8 75.5 106 195
437.9 2.0 7.79 12.9 20.6 31.3 57.0 75.5 107 195
536.3 1.6 7.81 13.0 20.6 31.3 56.9 75.8 107 195
656.8 1.3 7.79 13.0 20.7 31.4 57.1 76.0 107 196
870 804.5 1.1 7.78 13.0 20.7 31.4 57.2 75.7 107 196
985.3 .90 7.79 13.0 20.7 31.5 57.3 75.8 107 196
1207 .75 7.82 12.9 20.7 31.5 57.4 76.1 108 196
1478 .60 7.82 13.0 20.7 31.5 57.5 76.2 107 197
1810 .50 7.80 13.0 20.7 31.5 53.3 76.3 108 197
357.5 2.0 7.79 12.5 20.6 31.3 57.0 75.7 107 195
437.9 1.6 7.80 13.0 20.6 31.3 57.2 75.6 107 196
536.3 1.3 7.82 13.0 20.7 31.4 57.3 75.9 107 196
656.8 1.1 7.81 13.0 20.7 31.4 57.2 75.7 107 196
720 804.5 .90 7.80 13.0 20.7 31.4 57.3 75.8 107 196
985.3 .75 7.86 13.0 20.7 31.5 57.3 76.1 107 197
1207 .60 7.88 12.9 20.8 31.5 57.4 76.2 108 196
1478 .50 7.89 13.1 20.7 31.6 57.4 76.2 108 198
1810 .40 7.88 13.0 20.8 31.5 53.3 76.3 108 198
357.5 1.6 7.80 12.6 20.6 31.3 57.0 75.8 107 196
437.9 1.3 7.79 13.0 20.7 31.4 57.0 75.6 107 196
536.3 1.1 7.82 13.0 20.7 31.4 57.2 75.8 107 196
656.8 .90 7.84 13.0 20.7 31.5 57.3 76.2 107 197
580 804.5 .75 7.78 13.0 20.8 31.5 57.3 76.1 108 197
985.3 .60 7.83 13.0 20.7 31.5 57.4 76.1 108 196
1207 .50 7.82 12.9 20.8 31.5 57.5 76.3 108 197
1478 .40 7.87 13.0 20.7 31.6 57.5 76.2 108 198
1810 .32 7.86 13.0 20.9 31.7 53.4 76.4 108 198
† Since thermal ratings for drives listed above exceed mechanical hp ratings, it is not necessary to check for thermal limitations. For ratings at speeds higher than 1750 rpm and
for variable speed applications, consult Factory or local Sales office. For speeds below 580 rpm, use torques for 580 rpm.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 40

Types FCB & FZB Right Angle Shaft
Thermal Horsepower
Thermal Horsepower Thermal Rating Factors
Thermal horsepower is the actual horsepower (without service Thermal horsepower ratings published herein are based on a
factor) that a drive will transmit continually for three hours or more 100°F (38°C) ambient temperature at sea level. For other
without overheating. conditions, the thermal horsepower rating may be multiplied by the
Thermal ratings need not be considered when the continuous factors shown in the tables below. Where no thermal horsepowers
operating period does not exceed three hours and the shutdown are shown in the tables, refer to the Factory for selections at
time equals or exceeds the running time. However, when the ambients above 100°F (38°C) and altitudes above sea level.
running time exceeds the shutdown time, selection must be made
on a basis of adequate thermal rating.
Table 1 — Altitude Factor
Checking the thermal horsepower is extremely important, for if the
drive creates heat faster than it can be dissipated, severe damage Altitude — ft. Factor with or without
may occur. Sea Level = 0 Auxiliary Cooling

When the horsepower or torque appears in bold type, compare 0 to 2,500 1.00
2,500 .95
the actual horsepower required (without Service Factor) with the 5,000 .90
thermal horsepower capacity. If the actual load exceeds the 7,500 .85
thermal capacity, a fan or pump and cooler may be added or a 10,000 .81
larger drive may be required. 12,500 .76
15,000 .72
For ambient temperatures above 100°F (38°C) or altitudes above 17,500 .68
sea level see correction factor tables at right.

Table 2 — Ambient Temperature Factor

Ambient Factor w/o Aux. Cooling
Temperature H or with Fan
50°F (10°C) 1.39
60°F (16°C) 1.32
70°F (21°C) 1.25
80°F (27°C) 1.17
90°F (32°C) 1.09
100°F (38°C) 1.00
110°F (43°C) .91
120°F (49°C) .81
H Factors for other ambient temperatures can be interpolated.

Cooling Fan
If a drive creates heat faster than it can be dissipated, severe
damage may occur. Falk cooling fans provide a simple,
inexpensive way of permitting greater utilization of the mechanical
rating of drives by lowering operating temperatures, thus
increasing thermal horsepower capacity. Cooling fans have been
successfully used on electric motors and other related machinery
for many years and on Falk drives in paper mills, on desert
overland conveyors, steel mills, and other applications for over a
decade. Less than one quarter of one percent catalogued
horsepower rating is required to drive the fan.

Pump & Cooler

Where a cooling fan is not practical, a pump and cooler system is
an alternative to providing the necessary cooling to lower
operating temperatures. Refer to selection guide 141-931 for
pump and cooler information and contact the local Rexnord
representative for drive selection alternatives, application and
pricing considerations.

41 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB3 & FZB3 Right Angle Shaft
Thermal Horsepower Ratings H
Triple Reduction — Ratios 2.25 through 6.20
High Nominal Approx. DRIVE SIZE High Nominal Approx. DRIVE SIZE
Speed Ratios L.S. Speed Ratios L.S.
Shaft ±4% Shaft WITHOUT FAN WITH FAN Shaft ±4% Shaft WITHOUT FAN
rpm rpm 1030 1040 1050 1060 1070 1080 1090 1060 1070 1080 1090 rpm rpm 1080 1090
2.25 780 18 23 46 44 66 73 77 57 87 95 102 2.25 390 108 130
2.76 640 20 25 50 48 70 79 85 62 92 102 114 870 2.76 320 115 140
3.38 520 21 27 52 52 76 87 94 67 99 111 125 3.38 260 122 149
1750 4.13 420 22 30 54 60 84 98 108 76 109 127 142 2.25 320 120 142
5.06 350 23 32 56 65 93 111 122 85 118 139 159 720 2.76 260 123 153
6.20t 280 25 35 58 70 95 123 142 95 125 155 179 H This is actual hp (without service factor) that
drive will transmit continually for three hours
2.25 640 20 25 50 56 77 86 99 75 103 117 136
2.76 520 22 28 53 60 81 93 107 80 108 123 148 or more without overheating. For thermal
3.38 420 24 32 56 67 87 100 116 86 115 132 159 capacities beyond range of cooling fans,
1430 4.13 350 26 36 60 72 94 113 130 95 123 147 177
refer to the Factory. For thermal ratings of
drives mounted other than horizontal, refer
5.06 280 28 41 65 75 105 124 144 105 133 160 190 to Falk.
6.20t 230 30 45 70 80 110 130 164 120 145 175 200
2.25 520 22 27 52 69 88 96 119 90 119 137 170
2.76 420 25 30 55 73 92 107 128 95 125 143 182
1170 3.38 350 28 35 60 76 98 114 139 100 133 154 190
4.13t 280 30 40 65 80 105 127 153 110 140 160 195
t See table below for thermal ratings of drives with higher ratios.

Triple Reduction — Ratios 7.59 through 47.08 Q

High Approx. DRIVE SIZE
Nominal L.S.
Speed Ratios
Shaft Shaft WITHOUT FAN WITH FAN
±4% rpm
rpm 1060 1070 1080 1090 1100 1060 1070 1080 1090 1100
7.59 230 62 90 96 105 107 81 124 140 165 182
9.30 190 62 90 96 110 114 81 124 140 165 183
11.39 155 62 90 96 110 117 82 124 140 170 184
13.95 125 62 90 96 111 121 85 125 140 170 185
17.09 100 61 90 96 111 122 86 119 131 170 185
1750 20.93 84 61 85 96 111 123 88 118 129 170 185
25.63 68 61 79 96 111 130 90 109 127 166 192
31.39 56 60 78 94 111 130 90 108 129 167 190
38.44 45 60 78 96 113 116 89 108 131 169 168
47.08 37 59 82 95 102 127 89 114 129 153 182
7.59 190 70 99 110 125 134 89 128 142 202 208
9.30 155 70 99 110 125 139 87 128 142 190 210
11.39 125 66 99 110 125 139 86 128 144 181 204
13.95 100 65 96 101 125 139 86 126 140 177 196
1430 17.09 84 64 92 99 125 139 86 122 137 171 184
20.93 68 64 89 98 114 139 86 120 134 163 185
25.63 56 64 82 97 115 139 87 111 133 163 190
31.39 45 62 81 98 115 139 86 109 134 161 186
38.44 37 61 80 98 116 118 85 109 135 162 162
7.59 155 76 108 113 148 155 93 134 151 201 223
9.30 125 73 108 113 148 160 91 134 151 203 223
11.39 100 70 104 112 135 160 90 133 151 192 223
13.95 84 69 101 109 131 150 89 131 146 186 208
1170 17.09 68 67 97 105 127 141 88 126 142 179 193
20.93 56 66 94 103 121 144 88 123 139 170 194
25.63 45 66 86 101 121 144 89 114 136 168 197
31.39 37 64 83 101 120 141 88 112 137 166 192
7.59 115 83 118 126 157 179 98 142 161 217 245
9.30 95 79 115 123 158 179 96 141 159 218 245
11.39 77 75 112 122 148 169 93 140 159 204 230
870 13.95 62 73 108 117 143 164 93 137 153 196 222
17.09 50 71 102 112 137 152 91 131 148 187 204
20.93 42 69 98 109 129 151 91 128 144 177 203
7.59 95 87 123 132 167 191 101 146 166 226 256
9.30 77 82 120 129 166 191 98 145 163 225 253
720 11.39 62 78 116 127 155 178 95 143 163 210 238
13.95 50 75 111 121 149 171 94 140 156 201 228
7.59 77 80 128 138 175 203 103 150 171 233 267
580 9.30 62 84 124 134 174 199 100 148 167 232 262
Q Thermal hp values are for horizontal mounted drives. For thermal ratings of drives mounted other than horizontal, refer to the Factory. For thermal capacities beyond range of
cooling fans, refer to Selection Guide 141-931 for pump and cooler selections or Selection Guide 141-933 for air-to-oil cooler selections.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 42

Types FCB
& FZB Right Angle Shaft
Overhung Loads
High & Low Speed Shaft
The overhung load and thrust ratings published in this selection Low Speed Shaft
guide are based on a combination of the most unfavorable
Calculate low speed shaft overhung load using the formula and Fc
conditions of rotation, speed, direction of applied load and drive
values at left. The Lf load location factors tabulated on Page 43
loading. If the calculated load exceeds the published value, or if
are based on the distance from the center line of the load to the
an overhung load and thrust load are applied simultaneously to a
drive seal cage.
shaft, refer complete application information to the Factory.
Low Speed Shaft Overhung Load Example — An application
Overhung Loads — Overhung load is imposed upon a shaft
requiring 7 hp is driven by a 1050FCB3 drive with 56 rpm output.
when a pinion, sprocket or sheave is used as a power take-off.
A 5" pitch diameter single-chain sprocket is mounted on the low
The magnitude of the load varies with the type of take-off and its
speed shaft and the center line of the load is 3 inches from the
proximity to the shaft bearing. Calculate the load and check the
seal cage. Calculate the overhung load.
result against the tabulated overhung load rating.
126,000 x 7 x 1.00 x 1.05
Overhung load = =3308 pounds
Overhung Load Formula: 5 x 56
Refer to the Type FCB table on Page 43 and note that the
126,000 x hp x Fc x L f
Overhung Load = overhung load capacity for the 1050FCB at 56 rpm is 4500
Pitch Diam x rpm pounds (4.50 x 1000) and is satisfactory for this selection. If the
load were located 2 3/4 inches from the seal cage (one shaft
Fc =Load Connection Factor. diameter), the Lf would be 1.00 and the overhung load would be
CENTER LINE Sprocket H . . . . . . . . . . . . . . . . . 1.00 only 3150 pounds.
OF LOAD
Machined Pinion & Gear H . . . . . 1.25 Thrust Loads — Refer to Page 45 for low speed shaft thrust
Synchronous (Timing) Belt . . . . . . 1.30 capacities. Thrust capacities are for pure thrust loads. If thrust and
overhung loads are applied simultaneously, or if loads exceed
SEAL V-Belt . . . . . . . . . . . . . . . . . . . . 1.50
these capacities, consult Factory.
CAGE
Flat Belt . . . . . . . . . . . . . . . . . . . 2.50
DISTANCE Lf = Load Location Factor Q. High Speed Shaft
L.S.S. — See table on Page 43. High speed shaft overhung load ratings published on Page 44 are
for normal conditions where the center line of the load is one shaft
H.S.S. — See instructions at right. diameter from the seal cage (or external backstop), and for speeds
of 1430 rpm or lower. Where the center line of the load is one
H Refer all multiple chain sprocket and pinion shaft diameter or closer, calculate the high speed shaft overhung
mounted applications to Falk for deflection load using Lf = 1 in the formula at left. Check the result against
analysis.
Q Load Location Factors for drives with fan or the rating on Page 45. Higher overhung load capacities are
external backstop, refer to Selection Guide available when the full drive torque rating is not utilized. Refer to
311-112. the Factory for higher ratings for these conditions or if the
calculated load (using Lf = 1) exceeds the published value or if the
load is applied at a distance greater than one shaft diameter from
Locate the center of the load as close to the drive seal cage as the high speed shaft seal cage or external backstop.
practical to minimize the overhung load and increase bearing life.
High Speed Shaft Overhung Load Example — A 15 hp, 1750
The above overhung load formula employs the transmitted
rpm motor with a 4 inch pitch diameter sheave is V-belt connected
horsepower, without service factor, providing the overloads,
to a 1070FCB3 drive which has a ratio of 31.39:1. A 12 inch
starting loads and brake capacities do not exceed the amounts
pitch diameter sheave is mounted on the drive high speed shaft 2
listed in Gear Drive Ratings on Page 3.
inches (less than one shaft diameter) from the seal cage. Calculate
Consult Factory for Higher Overhung Load Ratings — In the high speed shaft rpm and overhung load as follows:
many cases, overhung load capacity in excess of that published is 4
available. Published ratings are based on a combination of the Drive high speed shaft rpm = x 1750 =583 rpm
most unfavorable conditions of rotation, speed, direction of 12
applied load, and drive loading. If the actual load should exceed Using the overhung load formula above,
the published capacity, refer full details to the Factory; provide 126,000 x 15 x 1.50 x 1.00
complete application information (see Page 31), as well as Overhung Load = = 405 pounds
12 x 583
direction of rotation, location and direction of applied load.
From the table on Page 44, in the 580 high speed shaft rpm
section, the overhung load capacity for a 1070FCB3 drive with
31.39:1 ratio is 800 pounds. The actual load is less than the
published capacity and is acceptable.

43 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB& FZB Right Angle Shaft
LSS Lf Load Location Factors*
Triple, Quadruple & Quintuple Reduction
Based on distance from center line of load to reducer seal cage

DISTANCE DRIVE SIZE

Inches 1020 1030 1040 1050 1060 1070 1080 1090 1100
1 .94 .92 .91 .90 .90 .89 .88 .87 .88
1½ .99 .96 .95 .93 .92 .91 .90 .89 .89
1¾ 1.04 .98 .97 .94 .94 .92 .91 .90 .90
2 1.11 1.00 .98 .96 .95 .94 .92 .91 .91
2½ 1.26 1.12 1.06 .99 .97 .96 .94 .93 .92
2¾ 1.34 1.19 1.11 1.00 .99 .97 .95 .94 .93
3 ... 1.25 1.17 1.05 1.00 .98 .96 .95 .94
3¼ ... 1.31 1.22 1.10 1.04 .99 .97 .96 .95
3½ ... 1.37 1.28 1.14 1.09 1.00 .98 .97 .96
4 ... ... 1.39 1.24 1.18 1.08 1.00 .98 .97
4½ ... ... ... 1.33 1.26 1.15 1.07 1.00 .98
4¾ ... ... ... 1.38 1.31 1.19 1.11 1.03 .99
5 ... ... ... ... 1.35 1.23 1.14 1.06 1.00
5½ ... ... ... ... ... 1.30 1.21 1.12 1.06
6 ... ... ... ... ... 1.38 1.28 1.18 1.12
6½ ... ... ... ... ... ... 1.35 1.24 1.18
7 ... ... ... ... ... ... 1.43 1.30 1.24
7½ ... ... ... ... ... ... ... 1.36 1.29
8 ... ... ... ... ... ... ... 1.42 1.35
8½ ... ... ... ... ... ... ... ... 1.41
Q Interpolate for intermediate values. For example Lf is 1.04 for Size 1070 when the distance is 3¾ inches.

Types FCB
& FZB Right Angle Shaft
LSS Overhung Load Ratings /Pounds s

Triple Reduction — Ratios 2.25 through 6.20

Approx. DRIVE SIZE
L.S. Shaft
rpm 1020 1030 1040 1050 1060 1070 1080 1090
780 880 1330 1830 3380 4500 5760 7920 7850
640 930 1410 1940 3570 4750 6130 8430 8360
520 990 1490 2050 3750 5000 6510 8950 8870
420 1040 1560 2170 3940 5250 6880 9460 9370
350 1100 1640 2280 4130 5500 7250 9970 9880
280 1150 1720 2390 4320 5750 7630 10500 10390

Types FCB
& FZB Right Angle Shaft
LSS Overhung Load Ratings /Pounds s

Triple, Quadruple & Quintuple Reduction — Ratios 7.59 through 1810

Multiply values listed below by 1000. . .Consult Factory for higher overhung load ratings
Approx. DRIVE SIZE
L.S. Shaft
rpm 1020 1030 1040 1050 1060 1070 1080 1090 1100
230 1.20 1.80 2.50 4.50 6.00 8.00 11.0 10.9 16.0
190 1.20 1.80 2.50 4.50 6.00 8.00 11.0 12.3 16.0
155 1.20 1.80 2.50 4.50 6.00 8.00 11.0 13.0 16.0
125 1.20 1.80 2.50 4.50 6.00 8.00 11.0 13.0 16.0
100 1.20 1.80 2.50 4.50 6.00 8.00 11.0 13.0 16.0
84 ‡ 1.20 1.80 2.50 4.50 6.00 8.00 11.0 13.0 16.0
s Ratings are for pure radial loads. If overhung load and thrust are applied simultaneously, or if loads exceed these values, consult Falk. These ratings apply only to the shaded
low speed shaft extensions shown on Page 47 and are based on a combination of the most unfavorable conditions of loading. For higher ratings and ratings of other shaft
extensions, refer full data to the Factory.
‡ The last overhung load value in each Drive Size column applies to all lower output speeds for that drive.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 44

Types FCB Right Angle Shaft
HSS Overhung Load Ratings/ Pounds
Triple, Quadruple & Quintuple Reduction
For loads applied one shaft diameter from seal cage. . .Consult Factory for higher overhung load ratings
High Approx. DRIVE SIZE
Speed Nominal L.S.
Shaft Ratios Shaft 1020 1030 1040 1050 1060 1070 1080 1090 1100
rpm rpm
TYPE FCB3 TRIPLE REDUCTION H

7.59 190 220 20 90 140 310 420 940 1250 1400

9.30 155 220 50 140 180 480 790 1050 1250 1400
11.39 125 220 90 200 250 600 800 1050 1250 1400
13.95 100 220 130 220
17.09 84 220 180 230
1430 20.93 68 220 210 230
25.63 56 220 240 240
31.39 45 220 260 280
38.44 37 220 160 160
47.08 30 ... 180 90
7.59 155 220 20 90 130 460 440 980 1250 1400
9.30 125 220 50 140 180 600 800 1050 1250 1400
11.39 100 220 120 210 320 600 800 1050 1250 1400
13.95 84 220 170 240
17.09 68 220 220 230
1170 20.93 56 220 250 250
25.63 45 220 280 330
31.39 37 220 300 380
38.44 30 220 200 240
47.08 25 ... 220 200
7.59 115 220 80 110 140 600 430 1050 1250 1400
9.30 95 220 110 160 290 600 800 1050 1250 1400
11.39 77 220 190 220
13.95 62 220 230 260
17.09 50 220 280 280
870 20.93 42 220 300 400
25.63 34 220 300 400
31.39 28 220 300 400
38.44 22 220 260 270
47.08 18 ... 280 310
7.59 95 220 150 200 220 600 540 1050 1250 1400
9.30 77 220 170 160 370 600 800 1050 1250 1400
720 11.39 62 220 230 230
13.95 50 220 270 300
17.09 42 220 300 380
7.59 77 220 190 310 320 600 680 1050 1250 1400
9.30 62 220 220 250 480 600 800 1050 1250 1400
580 11.39 50 220 290 290
13.95 42 220 300 400
TYPE FCB4 QUADRUPLE REDUCTION H

57.66 200 240 270 300 310 460 580 620 340
1430 86.50 200 240 270 300 320 340 580 620 670
& 105.9 200 240 270 300 330 380 300 620 700
129.7 200 240 270 300 290 400 580 620 700
1170 194.6 ... ... ... ... 330 530 580 620 700
70.62 200 240 270 300 360 530 580 620 700
870 86.50 200 240 270 300 380 340 580 620 700
720 & 105.9 200 240 270 300 380 370 300 620 700
129.7 200 240 270 300 290 390 580 620 700
580 194.6 ... ... ... ... 350 530 580 620 700
TYPE FCB5 QUINTUPLE REDUCTION H
357.5 ... 120 150 150 150 170 230 290 450
1430 437.9 ... 120 150 150 150 170 230 390 490
& 536.3 ... 120 150 150 150 170 230 410 510
656.8 ... 120 150 150 150 170 230 420 500
1170 1207 ... 120 150 150 150 170 230 330 520
437.9 ... 120 150 150 150 170 230 400 500
870 536.3 ... 120 150 150 150 170 230 420 520
720 & 580 1207 ... 120 150 150 150 170 230 330 520
H In each High Speed Shaft rpm section, the last overhung load value applies to all higher ratios of that gear reduction. Published ratings are based on a combination of the most
unfavorable conditions of loading. For higher ratings and for loads applied at a distance greater than one shaft diameter from the seal cage, refer full application data to the
Factory. Also refer to the Factory for ratings of drives with both a fan and a backstop.

45 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB & FZB Right Angle Shaft
LSS Thrust Loads
RIGHT ANGLE SHAFT
Thrust Loads — External thrust loads are often imposed upon HORIZONTAL OR VERTICAL
gear drive bearings by agitators, mixers and similar equipment
through solid couplings and also some flexible couplings.
Calculate the direction and magnitude of the thrust and check the
result against the tabulated thrust value.

OUTWARD INWARD

Types FCB & FZB Right Angle Shaft

LSS Thrust Load Capacity Q/Pounds
All Ratios — Thrust inward or outward
Approx. DRIVE SIZE
L.S. Shaft
rpm 1020 1030 1040 1050 1060 1070 1080 1090 1100
THRUST INWARD
230 800 2000 3000 3380 4600 6620 5350 5900 9340
190 800 2000 3000 3590 5160 7430 6180 6740 10000
155 800 2000 3000 3810 5500 8000 7000 7710 10700
125 800 2000 3000 4050 5500 8000 7760 8760 12000
100 800 2000 3000 4480 5500 8000 8710 9000 12000
84 800 2000 3000 4840 5500 8000 9000 9000 12000
68 800 2000 3000 4840 5500 8000 9000 9000 12000
56 800 2000 3000 4840 5500 8000 9000 9000 12000
45 800 2000 3000 4840 5500 8000 9000 9000 12000
37‡ 800 2000 3000 4840 5500 8000 9000 9000 12000
THRUST OUTWARD
230 800 2000 3000 5000 6000 7500 8000 10000 14000
190 800 2000 3000 5000 6000 7500 8000 10000 14000
155‡ 800 2000 3000 5000 6000 7500 8000 10000 14000
Q Thrust capacities are for pure thrust loads. If thrust and overhung loads are applied simultaneously, or loads exceed these capacities, consult Factory.
‡ The last thrust capacity value in each drive size column applies to all lower output speeds for that drive.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 46

Types FCB & FZB Right Angle Shaft
Exact Ratios
Triple, Quadruple & Quintuple Reduction

Triple Reduction
Approx. DRIVE SIZE
Nominal
L.S. Shaft
Ratios rpm‡ 1020 1030 1040 1050 1060 1070 1080 1090 1100
2.25 780 2.172 2.280 2.227 2.244 2.403Q 2.265 2.370Q 2.379Q
2.76 640 2.700 2.772 2.766 2.769 2.845 2.710 2.864 2.849
3.38 520 3.260 3.372 3.327 3.423 3.563Q 3.339 3.490 3.570Q
4.13 420 4.032 4.056 4.139 4.107 4.390Q 4.078 4.238 4.360Q
5.06 350 4.944 5.062 4.984 4.990 5.277Q 4.881 4.952 5.422Q
6.20 280 6.117 6.141 6.262 6.082 6.411 6.010 6.174 6.585Q
7.59 230 7.669 7.891 7.608 7.554 7.467 7.594 7.982Q 7.595 7.633
9.30 190 9.533 9.588 9.452 9.326 9.346 9.356 9.729Q 9.100 9.659
11.39 155 11.51 11.67 11.37 11.53 11.52 11.43 11.81 11.40 11.50
13.95 125 14.24 14.04 14.14 13.83 13.85 13.67 13.80 13.92 13.87
17.09 100 17.45 17.51 17.03 16.81 16.82 16.84 17.21 17.31 17.43
20.93 84 21.59 21.24 21.39 20.48 20.50 20.52 21.15 21.03 21.09
25.63 68 26.09 26.36 25.99 25.27 25.69 26.34 26.82Q 25.23 26.02
31.39 56 31.21 32.04 30.58 31.19 32.05 31.22 32.44 30.95 32.48
38.44 45 38.25 39.48 38.98 38.34 38.77 38.18 38.92 38.67 38.01
47.08 37 ... 47.12 45.43 46.66 47.75 47.24 47.78 46.16 48.78

Quadruple Reduction
Approx. DRIVE SIZE
Nominal
Ratios L.S. Shaft
rpm‡ 1020 1030 1040 1050 1060 1070 1080 1090 1100
47.08 37 47.62 ... ... ... ... ... ... ... ...
57.66 30 58.90 59.04 58.38 59.80 58.87 57.47 60.13 57.83 58.34
70.62 25 72.19 71.86 70.21 73.91 70.81 71.47 73.05 69.41 72.83
86.50 20 89.32 86.44 87.32 88.70 88.36 86.08 89.03 84.32 86.38
105.9 16.5 107.9 107.9 105.2 107.8 107.2 108.1 109.8 102.8 107.8
129.7 13.5 129.1 130.8 132.1 131.3 133.0 131.4 135.6 128.4 133.0
158.9 11.0 158.2 162.3 160.5 162.0 161.6 154.6 166.6 153.3 155.6
194.6 9.0 ... 197.3 188.9 200.0 199.2 197.0 201.6 195.5 203.9
238.4 7.5 ... 243.1 240.8 245.8 237.7 229.7 241.9 240.3 238.6
291.9 6.0 ... ... ... ... 287.5 280.9 296.9 286.4 306.3

Quintuple Reduction
Approx. DRIVE SIZE
Nominal
Ratios L.S. Shaft
rpm‡ 1020 1030 1040 1050 1060 1070 1080 1090 1100
291.9 6.0 ... 295.6 285.9 293.6 ... ... ... ... ...
357.5 5.0 ... 359.2 355.1 362.5 363.5 359.6 371.2 349.3 366.8
437.9 4.0 ... 437.1 427.1 448.1 449.6 444.8 455.0 428.5 460.8Q
536.3 3.2 ... 525.8 531.2 537.8 546.4 569.1Q 563.0 525.2 559.7
656.8 2.7 ... 656.1 639.8 653.3 681.8 674.5 681.2 649.9 658.7
804.5 2.2 ... 795.8 803.8 796.2 772.4 825.0 817.2 812.0 770.8
985.3 1.8 ... 987.3 976.4 982.1 967.8 1008 997.1 981.2 982.5
1207 1.5 ... 1200 1149 1212 1207 1195 1206 1151 1261
1478 1.2 ... 1479 1465 1490 1460 1461 1447 1438 1506
1810 1.0 ... 1765 1707 1814 1799 1808 1777 1716 1933Q
‡ Based on 1750 rpm input speed.
Q Exact ratios are within ±4% or nominal for triple reduction drives and ±5% of nominal for quadruple and quintuple reduction drives except where noted with an asterisk.

47 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Types FCB
& FZB Right Angle Shaft
Right Angle Assemblies & Shaft Rotations
Assemblies & Shaft Rotations — Please specify, from the views Special Assemblies
below, the number of the assembly required. Direction of rotation is
. . .with standard shaft rotation
determined by facing the end of the shaft extension. All high speed
shaft rotations shown below are clockwise; if reversed, also reverse low
speed shaft rotations. Refer to Pages 48 through 51 for low speed N L
shaft lengths, Dimensions L & N. L
Overhung & Thrust Loads — The values published on Pages 43
through 45 apply only to the shaded low speed shaft extensions: they 6 CW
are less for the unshaded extensions. Refer to the Factory for values of
5 CW
unshaded low speed shaft extensions or if thrust and overhung loads N
are applied simultaneously.
CW: FCB3 & 5 CW: FCB3 & 5
CCW: FCB4 CCW: FCB4
Standard Assemblies
. . .with standard shaft rotation Special Assemblies
. . .with opposite standard shaft rotation
BEVEL GEAR
CCW: FCB4
CW: FCB3 & 5
CW: FCB4
1 CCW: FCB3 & 5
CW
2 CW 7 CW
N N
8 CW
CW: FCB3 & 5 L L
CCW: FCB4
CCW: FCB3 & 5
N
CCW: FCB4 CW: FCB4
CW: FCB3 & 5 L
N CW: FCB4
CCW: FCB3 & 5
4 L
CW
3 CW
10 CW
CW: FCB3 & 5
9 CW
CCW: FCB4
CCW: FCB3 & 5
CW: FCB4

L N
N

12 CW
11 CW
L

CCW: FCB3 & 5 CCW: FCB3 & 5

CW: FCB4 CW: FCB4

© Rexnord Industries, LLC, 1997, 2006. (311-310) 48

Type FCB Triple, Quadruple & Quintuple Reduction
Sizes 1020 thru 1050 — Dimensions (Inches)

1 2 3 4

H.S. SHAFT
KEY Z
Y STANDARD ASSEMBLIES:
REFER TO PAGE 47 FOR RELATIVE
SHAFT ROTATION AND SPECIAL
ASSEMBLIES

L.S. SHAFT
KEY M
X S P
CLEARANCE
VENTED DIPSTICK &
OIL FILLER PLUG
C R R

USABLE
NA USABLE
LENGTH N
LENGTH
L

UA O

U
D OIL DRAIN
G BOTH ENDS

V J J
V F Q T 4-HOLES FOR H-DIA E E
B SAE GRADE 5 BOLTS
A

DRIVE L.S. Shaft Q

SIZE A B D E F G H J L† M N† O P Q R S T V X Y Z
U Key
1020 11.60 5.12 6.30 5.20 4.00 .68 .500 3.0 2.84 13.10 2.84 11.18 4.84 6.06 4.88 8.26 3.76 1.6250 .375 x .375 x 2.500 .58 5.5 2.60 1.26
1030 12.60 6.78 7.00 5.60 5.34 .70 .625 3.3 3.60 15.92 3.60 13.00 5.82 7.24 6.00 10.10 4.76 2.0000 .500 x .500 x 3.000 .72 5.6 3.00 1.86
1040 15.00 7.90 8.50 6.60 6.10 .80 .750 4.3 4.02 18.32 4.02 15.62 6.84 8.42 7.12 11.48 5.50 2.2500 .500 x .500 x 3.500 .90 5.5 2.90 2.06
1050 16.60 8.98 9.60 7.30 7.10 1.00 .875 4.5 4.82 21.10 4.82 17.30 7.82 9.10 7.70 13.28 6.12 2.7500 .625 x .625 x 4.000 .94 5.9 3.40 2.90

Triple Reduction — FCB3/FZB3 Quadruple Reduction — FCB4/FZB4 Quintuple Reduction — FCB5/FZB5

DRIVE
SIZE H.S. Shaft Q H.S. Shaft Q H.S. Shaft Q
H C NA C NA C NA
UA Key UA Key UA Key
1020 18.18 2.00 1.0000 .250 x .250 x 1.750 18.18 2.00 1.0000 .250 x .250 x 1.750 ... ... ... ...
1030 22.12 2.26 1.1250 .250 x .250 x 2.000 22.18 2.26 1.1250 .250 x .250 x 2.000 21.62 1.76 .8750 .188 x .188 x 1.500
1040 25.50 2.76 1.3750 .312 x .312 x 2.500 25.50 2.76 1.3750 .312 x .312 x 2.500 24.46 1.76 .8750 .188 x .188 x 1.500
1050 28.66 3.26 1.6250 .375 x .375 x 3.000 28.66 3.26 1.6250 .375 x .375 x 3.000 27.10 2.00 1.0000 .250 x .250 x 1.750
H Dimensions are for reference only and are subject to change without notice unless certified. Drives are for horizontal floor mounted operation or incline mounted operation within
the limits specified on Page 5, unless specifically stated otherwise. For accessory dimensions see Pages 22 through 28.
Q Shaft diameters are held to limits of +.0000”, –.0005”. Shaft keyseat depth is one-half of key height.
† A single L.S. shaft extension with Dimension N and Standard Assemblies 1, 2, 3 & 4 is standard; a second extension (Dimension L) is special.

49 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Type FZB Triple, Quadruple & Quintuple Reduction
Sizes 1020 thru 1050 — Dimensions (Inches)
DIMENSIONS ON PAGE 48
(CA IN TABLE BELOW)

1 2 3 4
Y Z

AA
STANDARD ASSEMBLIES:
REFER TO PAGE 47 FOR RELATIVE
SHAFT ROTATION AND SPECIAL ASSEMBLIES

L.S. SHAFT
KEY
M
X S P
CLEARANCE VENTED
CA DIPSTICK &
SHAFT R R OIL FILLER
C PLUG
GAP GUARD
USABLE
N
LENGTH L

U
D OIL DRAIN
G BOTH ENDS

V J J
V F Q T 4-HOLES FOR H-DIA E E
B SAE GRADE 5 BOLTS
A
Average Max t CA — APPROXIMATE OVERALL LENGTH WITH OPEN MOTOR AND TYPE T COUPLING ‡
Weight NEMA
DRIVE of Drive T&U MOTOR FRAME SIZE t
SIZE Only Frame
lb n Size 143T 145T 182T 184T 213T 215T 254T 256T 284TS 286TS 324TS 326TS

OPEN MOTORS
1020 150 215 32.7 32.7 33.8 33.8 34.6
1030 260 215 36.4 36.4 37.5 37.5 38.3 39.8
1040 390 326 41.0 41.0 41.0 41.0 42.1 43.3 47.0 48.6 51.0 51.0
1050 600 326 43.3 43.3 43.3 43.3 44.6 46.1 49.5 51.3 53.3 53.3 55.9 55.9
TEFC MOTORS
1020 150 215 31.3 31.7 33.3 34.3 39.5
1030 260 215 35.0 35.4 37.0 38.0 43.3 43.3
1040 390 326 37.8 38.2 40.2 41.2 46.1 46.1 52.2 52.2 53.3 53.3
1050 600 326 40.8 41.3 43.4 44.4 48.8 48.8 54.9 54.9 56.0 56.0 60.0
‡ CA dimensions are approximate and may vary with motor manufacturer.
n Weight shown is for Type FBC drive. For Type FBZ motoreducer weight, add average drive weight to approximate weight below.
t Brackets for Sizes 1020 thru 1050 will accept either T, TS, U or US frame motors. Do not exceed the motoreducer ratings shown in the selection tables. Standard length and
semi-standard length blank bracket dimensions are covered in Engineering 317-315.
Refer to Pages 4 and 5 for instructions when using other than T-frame motors.

APPROXIMATE WEIGHTS OF FALK MOTOR BRACKETS/COUPLINGS AND MOTORS — lb

HP 1 1 1/2 2 3 5 7 1/2 10 15 20 25 30 40 50 60 75 100 125 150 200
FRAME t 143T 145T 145T 182T 184T 213T 215T 254T 256T 284TS 286TS 324TS 326TS 364TS 365TS 404TS 405TS 444TS 445TS
DRIVE SIZE Bracket and Coupling Weights
1020-1030 35 35 35 35 35 45 45
1040-1070 60 60 60 60 60 65 65 80 80 100 100 110 110 165 180 270 270
1080-1090 65 65 65 65 75 80 80 95 100 115 115 120 120 165 180 270 285 340
1100-1130 70 70 70 85 85 90 90 110 110 120 120 130 135 310 310 375 375 445 485
1750 rpm Motor Weights
TEFC 30 35 35 60 70 135 170 250 300 335 365 465 550 735 845 1025 1080 1480 1585
MOTOR
OPEN 30 35 35 60 70 125 145 190 215 255 315 370 400 575 640 810 895 1195 1375
MOTOR
t See (t) note above.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 50

Type FCB Triple, Quadruple, & Quintuple Reduction
Sizes 1060 thru 1100 — Dimensions (Inches)
2 - LIFTING LUGS
SIZE 1100 ONLY
DRIVE WITH H.S.
COOLING FAN SHAFT

H.S. SHAFT
KEY Z
Y
NA
2 - LIFTING LUGS USABLE
SIZES 1080 - 1100 FB LENGTH

L.S. SHAFT KEY

OIL FILLER PLUG

M VENTED DIPSTICK

S P
C
X R R
USABLE NA CLEARANCE
LENGTH USABLE L
N
LENGTH

UA
O

D U
G OIL DRAIN
BOTH ENDS

V J J
V F Q T
E E
K K 4 - HOLES FOR H - DIA A
B SAE GRADE 5 BOLTS

STANDARD ASSEMBLIES:
REFER TO PAGE 47 FOR RELATIVE 1 2 3 4
SHAFT ROTATION AND SPECIAL

DRIVE L.S. SHAFT Q

SIZE As B D E F G H J K L† M N† O P Q R S T V X Y Z
H U Key †
1060 18.40 n 12.00 10.60 8.20 10.00 .66 1.000 4.2 ‡ 4.56 25.02 5.88 19.80 10.14 8.72 9.20 14.88 6.82 3.000 .750 x .750 x 5.00 1.0 5.6 5.64 4.92
1070 21.00 n 13.70 11.66 9.30 11.30 .66 1.125 4.5 ‡ 5.06 28.54 6.06 22.36 11.56 10.70 10.70 16.98 8.24 3.500 .875 x .875 x 5.00 1.2 5.6 6.60 5.64
1080 23.00 n 15.80 12.78 10.20 13.20 .78 1.250 5.5 ‡ 6.40 31.62 7.00 24.88 12.48 11.66 12.10 19.14 9.20 4.000 1.000 x 1.000 x 6.00 1.3 5.5 6.94 6.50
1090 26.00 17.50 15.74 11.40 14.30 .90 1.500 7.0 ‡ 8.16 35.68 8.80 28.64 13.58 13.52 12.90 22.10 10.54 4.500 1.000 x 1.000 x 7.50 1.6 7.3 8.12 7.20
1100 27.60 n 19.16 17.40 12.20 14.96 1.00 1.500 9.0 7.0 8.46 40.10 8.62 32.40 15.66 18.18 15.00 24.44 13.14 5.000 1.250 x 1.250 x 7.50 2.1 7.9 9.18 7.56

Triple Reduction — FCB3/FZB3 Quadruple Reduction — FCB4/FZB4 Quintuple Reduction — FCB5/FZB5

DRIVE
SIZE NA H.S. SHAFT Q H.S.SHAFT Q H.S.SHAFT Q
H C W/O With C NA C NA
Fan Fan UA Key UA Key UA Key

1060 32.48 3.76 2.38 1.8750 .500 x .500 x 3.25 31.86 3.26 1.6250 .375 x .375 x 3.00 31.10 2.50 1.2500 .250 x .250 x 2.2
1070 38.08 4.26 2.80 2.1250 .500 x .500 x 3.75 37.02 3.50 1.7500 .375 x .375 x 3.00 36.28 2.76 1.3750 .312 x .312 x 2.5
1080 42.54 4.50 2.82 2.2500 .500 x .500 x 4.00 41.50 3.88 2.0000 .500 x .500 x 3.50 40.76 3.26 1.6250 .375 x .375 x 3.0
1090 47.64 4.76 2.80 2.5000 .625 x .625 x 4.00 46.22 3.88 2.0000 .500 x .500 x 3.50 45.48 3.26 1.6250 .375 x .375 x 3.0
1100 56.68 5.26 3.32 2.7500 .625 x .625 x 4.75 55.32 4.00 2.1250 .500 x .500 x 3.50 54.84 3.76 1.8750 .500 x .500 x 3.2
H Dimensions are for reference only and are subject to change without notice unless certified. Drives are for horizontal floor mounted operation or incline mounted operation within
the limits specified on Page 5, unless specifically stated otherwise. For accessory dimensions see Pages 22 through 28.
† A single L.S. shaft extension with Dimension N and Standard Assemblies 1, 2, 3 & 4 is standard; a second extension (Dimension L) is special. The key length for extension L is
.500” to .750” shorter for Sizes 1060 thru 1090.
‡ Foundation pads extend full length of base for Sizes 1060 thru 1090.
s Housing lifting lugs extend beyond Dimension A as follows: Size 1080, .36”; 1090, .18”; 1100 with vertical L.S. shaft, 1.70”.
Q Shaft diameters under 3” are held to limits of +.0000”, –.0005”. Shaft diameters 3” and over are held to limits of +.000”, –.001”. Shaft keyseat depth is one-half of key height.
n Allow clearance for the following bracket widths (Type FZB):
Size 1060 with 364 and 365 frame motors, 19.88”.
Size 1070 with 404 and 405 frame motors, 22.78”.
Size 1080 with 444 and 445 frame motors, 25.06”.
Size 1100 with 364 and 445 frame motors, 28.50”.

51 (311-310) © Rexnord Industries, LLC, 1997, 2006.

 Type FZB Triple, Quadruple & Quintuple Reduction
Sizes 1060 thru 1100 — Dimensions (Inches)
2 - LIFTING LUGS
SIZE 1100 ONLY 2 - LIFTING LUGS
SIZES 1080 - 1100 FB

Y Z DIMENSIONS ON PAGE 50
(CA IN TABLE BELOW)

OIL FILLER PLUG L.S. SHAFT KEY

M
CA S P
VENTED
SHAFT DIPSTICK
C X R R
GAP GUARD CLEARANCE

USABLE N L
LENGTH

O
U
D
G OIL DRAIN
BOTH ENDS

V J J
V F Q T
E E
K K 4 - HOLES FOR H - DIA A
B SAE GRADE 5 BOLTS

STANDARD ASSEMBLIES:
REFER TO PAGE 47 FOR RELATIVE
1 2 3 4
SHAFT ROTATION AND SPECIAL

Average Max t CA — APPROXIMATE OVERALL LENGTH WITH OPEN MOTOR AND TYPE T COUPLING ‡
Weight NEMA
DRIVE of Drive T&U MOTOR FRAME SIZE t
SIZE Only Frame
lb n Size 143T 145T 182T 184T 213T 215T 254T 256T 284TS 286TS 324TS 326TS 364TS 365TS 404TS 405TS 444TS 445TS

OPEN MOTORS
1060 750 365 46.7 46.7 46.7 46.7 48.3 49.9 53.0 54.8 56.5 56.5 59.3 59.3 59.9 60.1
1070 1060 405 51.7 51.7 51.7 51.7 52.9 55.4 58.7 60.4 61.6 61.7 64.4 64.4 64.9 65.7 68.3 69.5
1080 1600 445 55.5 55.5 55.5 55.5 57.6 59.1 63.4 65.0 65.3 66.2 68.9 68.9 69.3 70.7 72.5 73.8
1090 2220 445 60.2 60.2 60.2 60.2 62.2 63.7 67.0 70.3 70.0 71.3 73.5 73.9 74.4 75.4 77.4 78.9 82.3 83.9
1100 3420 445 69.1 69.1 69.1 69.1 71.2 72.8 76.0 77.7 78.9 80.7 81.7 83.1 84.5 84.8 87.9 88.0 92.9 93.0
TEFC MOTORS
1060 750 365 44.1 44.5 46.6 47.6 52.8 52.8 58.2 58.2 60.6 60.6 63.3 63.3 64.8
1070 1060 405 48.5 49.0 52.2 54.2 57.0 57.0 63.6 63.6 65.7 65.7 68.4 68.4 70.1 70.1
1080 1600 445 52.9 53.4 55.5 57.2 61.6 61.6 68.1 68.1 69.9 69.9 72.9 72.9 74.4 74.4 79.0
1090 2220 445 57.6 58.1 60.2 61.2 66.3 66.3 71.8 71.8 74.7 74.7 78.1 78.1 79.7 79.7 83.9
1100 3420 445 67.7 68.2 69.7 70.7 75.3 75.3 80.8 80.8 83.2 83.2 85.9 85.9 88.8 88.8 92.7 92.7
‡ CA dimensions are approximate and may vary with motor manufacturer.
t Brackets will accept either T, TS, U or US frame motors. Do not exceed the Motoreducer ratings shown in the selection tables. Standard length and semi-standard length blank
bracket dimensions are covered in Engineering 317-315.
n Weight shown is for Type FCB drive. For Type FZB Motoreducer weight, add average drive weight to appropriate weight at the bottom of Page 49.
Refer to Pages 4 & 5 for instructions when using other than T-frame motors.

© Rexnord Industries, LLC, 1997, 2006. (311-310) 52

World Class Customer Service
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have delivered excellence in quality and service to our
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of Rexnord. All rights reserved.

311-310 12/2006 Delzer Litho Printed in USA

Rexnord Industries, LLC, Gear Group, 3001 West Canal Street, Milwaukee, WI 53208-4200 USA
Phone: 866-REXNORD/866-739-6673 Fax: 414-643-3366

© 2006 Rexnord Industries LLC