FX Series

CX Series

FXL Series

RA/RAHS Series

The Reinvention of the Gear Coupling

Selection
FX Series
H E R C U F L E X

Gear Coupling Selection Process

Factors Affecting Selection
The following is a list of the information necessary to assist in making a coupling selection. Not all of these
items will come into play in all selection processes. These items include, but are not limited to:

• Application details
• Type of motor and driven equipment
• Motor horsepower or KW
• Operating/coupling speed
• Shaft sizes and separation
• Space and size constraints
• Environment (temperature, chemicals, etc)
• Balance requirements
• Special modifications

Steps In Selecting A Gear Coupling

Refer to the gear coupling specifications charts displayed with each type of coupling throughout this catalog. The
pictures and charts provide visualization, specifications, and dimensional data for Lovejoy’s HercuFlex gear coupling
products. Typically start with an FX Type flanged gear coupling or a CX Type continuous sleeve gear coupling and
proceed from there.

Step 1: Review the gear coupling series and type as selected to ensure the selection meets application
requirements.
Step 2: Determine the nominal application torque in in–lbs by using the following formula:
Application Torque ( in–lb ) = (HP x 63025)
RPM

or Nm = (KW x 9550)
RPM

Step 3: Review the Application Service Factor chart for the service factor number associated with the
application where this coupling will be used. Multiply the application torque by the application
service factor to determine the total torque required for the coupling selection.
Step 4: Compare the required total torque value with the nominal torque capacity listed in the Gear
Coupling Selection chart for the desired coupling type.
Step 5: Check that the maximum bore size and the maximum RPM of the coupling type selected to ensure
the coupling will meet these application requirements.
Step 6: Note any special requirements including the BSE dimension for floating shaft and spacer types,
shear pin torque, slide coupling details, mill motor tapered shaft data, and any other pertinent
information.

Consult with Lovejoy for any unique applications.

2 630-852-0500
 Application Service Factors
Agitators Machine Tools Mixers
Pure Liquids .........................................1.0 Bending Roll.........................................2.0 Concrete Mixers, Continuous ...............1.5
Liquids—Variable Density .....................1.0 Punch Press, Gear Driven......................2.0 Concrete Mixers, Intermittent...............2.0
Blowers Tapping Machines ................................2.0 Oil Industry
Centrifugal...........................................1.0 Main Drives ..........................................1.5 Oil Well Pumping .................................2.0
Lobe ....................................................1.2 Auxiliary Drives.....................................1.5 Rotary Kilns ..........................................2.0
Can Filling Machines ...............................1.0 Metal Mills Paper Mills
Car Dumpers............................................2.0 Draw Bench—Carriage.........................2.0 Agitators, Mixers ..................................1.5
Car Pullers, Intermittent Duty ................1.5 Draw Bench—Main Drive .....................2.0 Barker Auxiliaries, Hydraulic .................2.0
Compressors Forming Machines................................2.0 Barker Mechanical................................2.0
Centrifugal...........................................1.0 Slitters..................................................1.5 Barking Drum Spur
Reciprocating .......................................2.2 Table Conveyors Gear Only .......................................2.0
Multi-Cylinder ......................................2.0 Non-Reversing...............................2.25 Beater & Pulper ..................................1.75
Single Cylinder .....................................2.0 Reversing ........................................2.5 Bleacher ...............................................1.0
Conveyors, Uniformly Loaded or Fed Wire Drawing & Calenders.............................................2.0
Assembly .............................................1.2 Flattening Machine ...........................2.0 Calenders, Super ..................................1.5
Belt ......................................................1.2 Wire Winding Machine ......................1.75 Chippers ..............................................2.5
Screw ...................................................1.2 Metal Rolling Mills Coaters ................................................1.0
Conveyors, Heavy Duty Blooming Mills .................................... 2.5 Converting Machines,
Not Uniformly Coilers, hot mill ....................................2.0 except Cutters, Platers.......................1.5
Fed Assembly .......................................1.5 Coilers, cold mill...................................1.5 Conveyors ............................................1.5
Belt ......................................................1.5 Cold Mills.............................................2.0 Couch Roll .........................................1.75
Oven ....................................................1.5 Cooling Beds......................................1.75 Cutters, Platters ...................................2.0
Reciprocating .......................................2.0 Door Openers ......................................2.0 Cylinders ............................................1.75
Screw ...................................................1.5 Draw Benches ......................................2.0 Disc Refiners ......................................1.75
Shaker .................................................1.5 Edger Drives .......................................1.75 Dryers ................................................1.75
Cranes and Hoists1 Feed Rolls, Reversing Mills ....................3.5 Felt Stretcher ......................................1.25
Main Hoists ..........................................2.0 Furnace Pushers ...................................2.5 Felt Whipper .......................................2.0
Reversing .............................................2.0 Hot Mills ..............................................3.0 Jordans ..............................................1.75
Skip Hoists ...........................................2.0 Ingot Cars ............................................2.5 Line Shaft.............................................1.5
Trolley Drive .........................................2.0 Kick-outs..............................................2.5 Log Haul ..............................................2.0
Bridge Drive .........................................2.0 Manipulators........................................3.0 Pulp Grinder.......................................1.75
Crushers Merchant Mills .....................................3.0 Press Roll ..............................................2.0
Ore ......................................................3.0 Piercers ................................................3.0 Reel .....................................................1.5
Stone ...................................................3.0 Pusher Rams ........................................2.5 Stock Chests ........................................1.5
Dredges Reel Drives .........................................1.75 Suction Roll ........................................1.75
Conveyors ............................................2.0 Reel Drums ..........................................2.0 Washers & Thickeners ..........................1.5
Cutter Head Drives ..............................2.0 Reelers .................................................3.0 Winders ...............................................1.5
Maneuvering Winches .........................2.0 Rod and Bar Mills .................................3.0 Printing Presses .......................................1.5
Pumps..................................................2.0 Roughing Mill Delivery Table.................3.0 Pumps
Fans Runout Tables ......................................2.5 Centrifugal...........................................1.0
Centrifugal...........................................1.0 Saws, hot & cold ..................................2.5 Reciprocating
Cooling Towers Forced Draft ................1.5 Screwdown Drives................................3.0 Single Acting 3 or more
Feeders Skelp Mills............................................3.0 Cylinders ........................................1.5
Screw ...................................................1.5 Slitters..................................................3.0 Double Acting 2 or more
Generators Slabing Mills.......................................1.75 Cylinders ........................................2.0
Not Welding ........................................1.0 Soaking Pit Cover Drives.......................3.0 Rotary, Gear Type, Lobe
Welding ...............................................1.5 Straighteners........................................2.5 Vane ...............................................1.5
Hammer Mills ..........................................2.0 Tables, transfer & runout .....................2.5 Rubber Industry
Laundry Washers Thrust Block .........................................3.0 Mixer ...................................................2.0
Reversing .............................................1.5 Traction Drive .......................................3.0 Rubber Calender ..................................2.0
Lumber Industry Tube Conveyor Rolls .............................2.5 Screens
Barkers—Drum Type.............................2.0 Unscramblers .......................................2.5 Rotary, Stone or Gravel.........................1.5
Edger Feed ..........................................2.0 Wire Drawing.....................................1.75 Steering Gear ..........................................1.0
Live Rolls ..............................................2.0 Mills, Rotary Type Stokers .....................................................1.0
Log Haul—Incline .................................2.0 Ball ....................................................2.25 Textile Industry
Log Haul—Well Type ............................2.0 Dryers & Coolers ..................................2.0 Dryers ..................................................1.5
Off Bearing Rolls ..................................2.0 Hammer.............................................1.75 Dyeing Machinery ................................1.5
Planer Feed Chains .............................1.75 Kilns.....................................................2.0 Windlass ..................................................2.0
Planer Tilting Hoist .............................1.75 Pebble & Rod .......................................2.0
Planer Floor Chains ............................1.75 Pug ....................................................1.75
Slab Conveyor ......................................1.5 Tumbling Barrels...................................2.0
Sorting Table ........................................1.5
Trimmer Feed .......................................1.5

Notes: • 1 indicates: If people are transported, Lovejoy does not recommend and will not warranty the use of the coupling.
• Values contained in the table should be used as a general guide and are to be applied to smooth power sources such
as electric motors and steam turbines.
• For drives involving internal combustion engines add 1.0 to the values listed.

lovejoy-inc.com 3
FX Series
H E R C U F L E X

FX Series
Flange Style Gear Coupling
By incorporating the latest advances in Finite
Element Analysis technology, Lovejoy has
revolutionized the Gear Coupling. Increased
nominal torque, larger maximum bore size
and longer service life are just a few of the
many advantages of the HercuFlex coupling.
Despite the advanced nature of these
improvements, the HercuFlex Gear Coupling
still utilizes the standard AGMA flange
interface to ensure field interchangeability.

Key Features
• Unequaled bore and torque capacity
• 1.5° of misalignment per gear mesh
• Improved fastener corrosion resistance
• Advanced seal design intensifying
contamination resistance
• Interchangeable with standard AGMA
flange interface

Max Running Speed (RPM)

Nominal Torque Nominal Torque Max Bore Max Bore
Size
(in-lb) (N-m) (in) (mm)
Unbal Bal
1 11,300 1,277 1.875 48 6,000 9,000
1.5 26,100 2,949 2.438 62 5,500 8,250
2 44,850 5,067 3.063 78 5,000 7,500
2.5 79,700 9,005 3.625 92 4,400 6,600
3 135,700 15,332 4.250 108 4,000 6,000
3.5 203,550 22,998 5.000 127 3,500 5,250
4 311,540 35,199 5.875 149 3,000 4,500
4.5 427,460 48,296 6.750 171 2,700 4,050
5 584,890 66,084 7.750 197 2,500 3,750
5.5 771,300 87,145 8.625 220 2,200 3,300
6 1,207,500 136,429 9.500 241 2,100 3,150
7 1,638,750 185,154 11.250 287 2,000 3,000

4 630-852-0500
 OAL

OAL
TS
CL P

LTB
LTB
BSE
HD D FD
G

Normal Hub Arrangement

OAL 1 OAL 2
TS TS
CL P 1 CL P1

LTB LTB

G1 G2
1 Hub Reversed 2 Hubs Reversed
FX Dimensions (Standard Hubs)
OAL OAL OAL 1 OAL 1 OAL 2 OAL 2 LTB LTB BSE BSE HD HD D D
Size (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm)
1 3.51 89.2 3.82 97.0 4.13 104.9 1.69 42.9 0.13 3.3 2.49 63.3 3.26 82.8
1.5 4.01 101.9 4.25 108.0 4.49 114.0 1.94 49.3 0.13 3.3 3.29 83.5 4.11 104.3
2 5.01 127.3 5.69 144.5 6.37 161.8 2.44 62.0 0.13 3.3 4.21 106.9 5.10 129.6
2.5 6.25 158.8 7.03 178.6 7.81 198.4 3.03 77.0 0.19 4.8 4.97 126.4 6.17 156.6
3 7.37 187.2 8.04 204.2 8.71 221.2 3.59 91.2 0.19 4.8 5.88 149.4 7.17 182.0
3.5 8.63 219.2 9.20 233.7 9.77 248.2 4.19 106.4 0.25 6.4 6.87 174.5 8.35 212.2
4 9.75 247.7 10.44 265.2 11.13 282.7 4.75 120.7 0.25 6.4 8.10 205.7 9.83 249.8
4.5 10.93 277.6 11.99 304.5 13.05 331.5 5.31 134.9 0.31 7.9 9.09 230.9 10.81 274.7
5 12.37 314.2 13.72 348.5 15.07 382.8 6.03 153.2 0.31 7.9 10.24 260.0 12.13 308.0
5.5 14.13 358.9 15.35 389.9 16.57 420.9 6.91 175.5 0.31 7.9 11.28 286.5 13.13 333.4
6 15.13 384.3 16.54 420.1 17.95 455.9 7.41 188.2 0.31 7.9 12.29 312.2 14.38 365.2
7 17.76 451.1 19.07 484.4 20.38 517.7 8.69 220.7 0.38 9.7 14.30 363.3 16.69 423.9

FD FD TS TS CL CL P P P1 P1 G G G1 G1 G2 G2
Size (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm)
1 4.56 115.8 2.13 54.1 0.07 1.7 0.01 0.3 0.32 8.1 0.13 3.3 0.44 11.2 0.75 19.1
1.5 6.00 152.4 2.31 58.7 0.07 1.8 0.12 3.0 0.36 9.1 0.13 3.3 0.37 9.4 0.61 15.5
2 7.00 177.8 3.25 82.6 0.07 1.8 0.12 3.0 0.80 20.3 0.13 3.3 0.81 20.6 1.49 37.8
2.5 8.38 212.9 4.00 101.6 0.10 2.6 0.18 4.6 0.96 24.4 0.19 4.8 0.97 24.6 1.75 44.5
3 9.44 239.8 4.45 113.0 0.09 2.3 0.37 9.4 1.04 26.4 0.19 4.8 0.86 21.8 1.53 38.9
3.5 11.00 279.4 5.01 127.3 0.10 2.4 0.50 12.7 1.07 27.2 0.25 6.4 0.82 20.8 1.39 35.3
4 12.50 317.5 5.69 144.5 0.13 3.4 0.62 15.7 1.31 33.3 0.25 6.4 0.94 23.9 1.63 41.4
4.5 13.63 346.2 6.68 169.7 0.14 3.5 0.65 16.5 1.71 43.4 0.31 7.9 1.37 34.8 2.43 61.7
5 15.31 388.9 7.69 195.3 0.20 5.0 0.65 16.5 2.00 50.7 0.31 7.9 1.66 42.2 3.01 76.5
5.5 16.75 425.5 8.44 214.4 0.19 4.9 1.06 26.9 2.28 57.9 0.31 7.9 1.53 38.9 2.75 69.8
6 18.00 457.2 9.13 231.9 0.16 4.0 0.90 22.9 2.31 58.7 0.31 7.9 1.72 43.7 3.13 79.5
7 20.75 527.1 10.38 263.7 0.19 4.8 1.50 38.0 2.81 71.2 0.38 9.7 1.69 42.9 3.00 76.2

lovejoy-inc.com 5
CX Series
H E R C U F L E X

CX Series
Continuous Sleeve Style
Gear Coupling
The HercuFlex coupling family has expanded
to include the continuous sleeve gear
coupling. Utilizing the same industry leading
design expertise as seen in the FX style,
Lovejoy has incorporated multiple innovations
to yield previously unseen bore and torque
capacity in the Continuous Sleeve gear
coupling segment.

Key Features
• Unequaled bore and torque capacity
• 1.5° of misalignment per gear mesh
• Improved hardware corrosion resistance
• Advanced seal design intensifying
contamination resistance

Max Running Speed (RPM)

Nominal Torque Nominal Torque Max Bore Max Bore
Size
(in-lb) (N-m) (in) (mm)
Unbal Bal

1 11,300 1,277 1.875 48 6,000 9,000

1.5 26,100 2,949 2.438 62 5,500 8,250
2 44,850 5,067 3.063 78 5,000 7,500
2.5 79,700 9,005 3.625 92 4,400 6,600
3 135,700 15,332 4.250 108 4,000 6,000
3.5 203,550 22,998 5.000 127 3,500 5,250
4 311,540 35,199 5.875 149 3,000 4,500
4.5 427,460 48,296 6.750 171 2,700 4,050
5 584,890 66,084 7.750 197 2,500 3,750
5.5 771,300 87,145 8.625 220 2,200 3,300
6 1,207,500 136,429 9.500 241 2,100 3,150
7 1,638,750 185,154 11.250 287 2,000 3,000

6 630-852-0500
 OAL
LS

OAL
O OD TS
O HD CL P
LTB
BSE

LTB

G
Normal Hub Arrangement

OAL 1 OAL 2
TS TS
CL P1 CL P1

LTB LTB

G1 G2
1 Hub Reversed 2 Hubs Reversed
CX Dimensions (Standard Hubs)
Size OAL OAL OAL 1 OAL 1 OAL 2 OAL 2 LTB LTB BSE BSE HD HD OD OD TS TS
(in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm)
1 3.63 92.2 3.94 100.1 4.25 108.0 1.69 42.9 0.13 3.3 2.49 63.3 3.26 82.8 2.13 54.1
1.5 4.01 101.9 4.25 108.0 4.49 114.0 1.94 49.3 0.13 3.3 3.29 83.5 4.11 104.3 2.31 58.7
2 5.01 127.3 5.69 144.5 6.37 161.8 2.44 62.0 0.13 3.3 4.21 106.9 5.10 129.6 3.25 82.6
2.5 6.25 158.8 7.03 178.6 7.81 198.4 3.03 77.0 0.19 4.8 4.97 126.4 6.17 156.6 4.00 101.6
3 7.37 187.2 8.04 204.2 8.71 221.2 3.59 91.2 0.19 4.8 5.88 149.4 7.17 182.0 4.45 113.0
3.5 8.63 219.2 9.20 233.7 9.77 248.2 4.19 106.4 0.25 6.4 6.87 174.5 8.35 212.2 5.01 127.3
4 9.75 247.7 10.44 265.2 11.13 282.7 4.75 120.7 0.25 6.4 8.10 205.7 9.83 249.8 5.69 144.5
4.5 10.93 277.6 11.99 304.5 13.05 331.5 5.31 134.9 0.31 7.9 9.09 230.9 10.81 274.7 6.68 169.7
5 12.37 314.2 13.72 348.5 15.07 382.8 6.03 153.2 0.31 7.9 10.24 260.0 12.13 308.0 7.69 195.3
5.5 14.13 358.9 15.35 389.9 16.57 420.9 6.91 175.5 0.31 7.9 11.28 286.5 13.13 333.4 8.44 214.4
6 15.13 384.3 16.54 420.1 17.95 455.9 7.41 188.2 0.31 7.9 12.29 312.2 14.38 365.2 9.13 231.9
7 17.76 451.1 19.07 484.4 20.38 517.7 8.69 220.7 0.38 9.7 14.30 363.3 16.69 423.9 10.38 263.7

Size P P P1 P1 G G G1 G1 G2 G2 LS LS CL CL
(in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm)
1 -0.12 -3.0 0.19 4.8 0.13 3.3 0.44 11.2 0.75 19.1 3.63 92.2 0.06 1.5
1.5 0.05 1.3 0.29 7.4 0.13 3.3 0.37 9.4 0.61 15.5 3.90 98.9 0.06 1.5
2 0.00 0.0 0.68 17.3 0.13 3.3 0.81 20.6 1.49 37.8 5.00 126.9 0.06 1.5
2.5 0.10 2.6 0.88 22.4 0.19 4.8 0.97 24.6 1.75 44.5 6.04 153.3 0.06 1.5
3 0.37 9.3 1.04 26.3 0.19 4.8 0.86 21.8 1.53 38.9 6.63 168.3 0.06 1.5
3.5 0.66 16.7 1.23 31.2 0.25 6.4 0.82 20.8 1.39 35.3 7.31 185.6 0.09 2.3
4 0.77 19.5 1.46 37.0 0.25 6.4 0.94 23.9 1.63 41.4 8.21 208.5 0.09 2.3
4.5 0.68 17.3 1.74 44.2 0.31 7.9 1.37 34.8 2.43 61.7 9.56 242.7 0.09 2.3
5 0.60 15.3 1.95 49.6 0.31 7.9 1.66 42.2 3.01 76.5 11.16 283.3 0.13 3.2
5.5 0.98 25.0 2.20 55.9 0.31 7.9 1.53 38.9 2.75 69.8 12.16 308.7 0.13 3.2
6 0.82 20.9 2.23 56.7 0.31 7.9 1.72 43.7 3.13 79.5 13.48 342.3 0.13 3.2
7 1.46 37.0 2.77 70.3 0.38 9.7 1.69 42.9 3.00 76.2 14.84 376.8 0.13 3.2

lovejoy-inc.com 7
FXL Series
H E R C U F L E X

FXL Series
Labyrinth Seal Flanged
Gear Coupling
In extreme high contamination environments,
Lovejoy has transformed the HercuFlex
coupling to integrate an advanced seal
design when performance degradation is not
tolerable. This advanced gear coupling still
encompasses the torque and misalignment
capacities that make the HercuFlex coupling
an industry leader.

Key Features
• Unequaled bore and torque capacity
• 1.5° of misalignment per gear mesh
• Improved fastener corrosion resistance
• Advanced seal design intensifying
contamination resistance
• Interchangeable with standard AGMA
flange interface

Max Running Speed (RPM)

Nominal Torque Nominal Torque Max Bore Max Bore
Size
(in-lb) (N-m) (in) (mm)
Unbal Bal

1 8,000 904 1.563 40 6,000 9,000

1.5 15,000 1,695 2.125 55 5,500 8,250
2 39,000 4,406 2.813 71 5,000 7,500
2.5 69,300 7,830 3.370 85 4,400 6,600
3 118,000 13,332 4.063 100 4,000 6,000
3.5 177,000 19,998 4.750 120 3,500 5,250
4 270,900 30,608 5.675 145 3,000 4,500
4.5 370,700 41,883 6.375 167 2,700 4,050
5 508,600 57,464 7.500 190 2,500 3,750
5.5 670,700 75,779 8.375 212 2,200 3,300
6 1,050,000 118,634 9.375 238 2,100 3,150
7 1,425,000 161,003 11.000 280 2,000 3,000

8 630-852-0500
 OAL
TS
W

OAL
TS
CL P

O OD
LTB O FD
BSE O HD

LTB

G
Normal Hub Arrangement

FXL Dimensions (Standard Hubs)

Size OAL OAL LTB LTB BSE BSE HD HD OD OD TS TS
(in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm)
1 3.63 92.2 1.69 42.9 0.13 3.3 2.06 52.3 3.26 82.8 2.13 54.1
1.5 4.01 101.9 1.94 49.3 0.13 3.3 2.85 72.4 4.11 104.3 2.31 58.7
2 5.01 127.3 2.44 62.0 0.13 3.3 3.75 95.2 5.10 129.6 3.25 82.6
2.5 6.25 158.8 3.03 77.0 0.19 4.8 4.49 114.0 6.17 156.6 4.00 101.6
3 7.37 187.2 3.59 91.2 0.19 4.8 5.38 136.6 7.17 182.0 4.45 113.0
3.5 8.63 219.2 4.19 106.4 0.25 6.4 6.34 161.1 8.35 212.2 5.01 127.3
4 9.75 247.7 4.75 120.7 0.25 6.4 7.41 188.3 9.83 249.8 5.69 144.5
4.5 10.93 277.6 5.31 134.9 0.31 7.9 8.38 212.8 10.81 274.7 6.68 169.7
5 12.37 314.2 6.03 153.2 0.31 7.9 9.51 241.5 12.13 308.0 7.69 195.3
5.5 14.13 358.9 6.91 175.5 0.31 7.9 10.52 267.3 13.13 333.4 8.44 214.4
6 15.13 384.3 7.41 188.2 0.31 7.9 11.55 293.5 14.38 365.2 9.13 231.9
7 17.76 451.1 8.69 220.7 0.38 9.7 13.54 343.8 16.69 423.9 10.38 263.7

G G FD FD TS TS CL CL P P
Size (in) (mm) (in) (mm) (in) (mm) (in) (mm) (in) (mm)
1 0.13 3.3 4.56 115.8 2.13 54.1 0.07 1.7 0.01 0.3
1.5 0.13 3.3 6.00 152.4 2.31 58.7 0.07 1.8 0.12 3.0
2 0.13 3.3 7.00 177.8 3.25 82.6 0.07 1.8 0.12 3.0
2.5 0.19 4.8 8.38 212.9 4.00 101.6 0.10 2.6 0.18 4.6
3 0.19 4.8 9.44 239.8 4.45 113.0 0.09 2.3 0.37 9.4
3.5 0.25 6.4 11.00 279.4 5.01 127.3 0.10 2.4 0.50 12.7
4 0.25 6.4 12.50 317.5 5.69 144.5 0.13 3.4 0.62 15.7
4.5 0.31 7.9 13.63 346.2 6.68 169.7 0.14 3.5 0.65 16.5
5 0.31 7.9 15.31 388.9 7.69 195.3 0.20 5.0 0.65 16.5
5.5 0.31 7.9 16.75 425.5 8.44 214.4 0.19 4.9 1.06 26.9
6 0.31 7.9 18.00 457.2 9.13 231.9 0.16 4.0 0.90 22.9
7 0.38 9.7 20.75 527.1 10.38 263.7 0.19 4.8 1.50 38.0

lovejoy-inc.com 9
Lovejoy® HercuFlex Gear Coupling Flange Interchangeability*
EXPOSED BOLTS

Lovejoy® FX Series Lovejoy® FXL Series Lovejoy® F Series FALK® 1000 Series FALK® GF Series
Torque Max Max Torque Max Max Torque Max Max Torque Max Max Torque Max Max
Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Bore
Size (in-lb) (in) (mm) Size (in-lb) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm)
1 11,300 1.875 48 1 8,000 1.563 40 1 7,600 1.625 42 1010G 10,080 1.875 48 1GF 7,600 1.625 41
1.5 26,100 2.438 62 1.5 15,000 2.125 55 1.5 18,900 2.125 56 1015G 20,790 2.375 60 1-½GF 18,900 2.125 54
2 44,850 3.063 78 2 39,000 2.813 71 2 31,500 2.750 73 1020G 37,800 2.875 73 2GF 31,500 2.750 70
2.5 79,700 3.625 92 2.5 69,300 3.375 85 2.5 56,700 3.250 85 1025G 66,150 3.625 92 2-½GF 56,700 3.250 83
3 135,700 4.250 108 3 118,000 4.063 100 3 94,500 4.000 107 1030G 107,100 4.125 105 3GF 101,000 4.000 102
3.5 203,550 5.000 127 3.5 177,000 4.750 120 3.5 151,200 4.625 125 1035G 163,800 4.875 124 3-½GF 151,300 4.500 114
4 311,540 5.875 149 4 270,900 5.688 145 4 220,500 5.375 145 1040G 270,900 5.750 146 4GF 236,000 5.375 137
4.5 427,460 6.750 171 4.5 370,700 6.375 162 4.5 302,400 6.000 165 1045G 371,700 6.750 171 4-½GF 324,000 6.500 165
5 584,890 7.750 197 5 508,600 7.500 190 5 434,700 6.500 180 1050G 500,900 7.375 187 5GF 441,000 7.000 178
5.5 771,300 8.625 220 5.5 670,700 8.375 212 5.5 573,300 7.500 200 1055G 655,200 8.250 210 5-½GF 580,000 7.750 197
6 1,207,500 9.500 241 6 1,050,000 9.375 238 6 749,700 8.250 225 1060G 800,100 9.125 232 6GF 759,000 8.750 222
7 1,638,750 11.250 287 7 1,425,000 11.000 280 7 1,008,000 9.500 255 1070G 1,197,000 10.000 254
SHROUDED BOLTS

Lovejoy® FX Series Lovejoy® FXL Series Lovejoy® F Series FALK® 1000 Series FALK® GF Series
Torque Max Max Torque Max Max Torque Max Max Torque Max Max Torque Max Max
Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Bore
Size (in-lb) (in) (mm) Size (in-lb) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm)
1 11,300 1.875 48 1 8,000 1.563 40 1 7,600 1.625 42 1010G 10,080 1.875 48 1GF 7,600 1.625 41
1.5 26,100 2.438 62 1.5 15,000 2.125 55 1.5 18,900 2.125 56 1015G 20,790 2.375 60 1-½GF 18,900 2.125 54
2 44,850 3.063 78 2 39,000 2.813 71 2 31,500 2.750 73 1020G 37,800 2.875 73 2GF 31,500 2.750 70
2.5 79,700 3.625 92 2.5 69,300 3.375 85 2.5 56,700 3.250 85 1025G 66,150 3.625 92 2-½GF 56,700 3.250 83
3 135,700 4.250 108 3 118,000 4.063 100 3 94,500 4.000 107 1030G 107,100 4.125 105 3GF 101,000 4.000 102
3.5 203,550 5.000 127 3.5 177,000 4.750 120 3.5 151,200 4.625 125 1035G 163,800 4.875 124 3-½GF 151,300 4.500 114
4 311,540 5.875 149 4 270,900 5.688 145 4 220,500 5.375 145 1040G 270,900 5.750 146 4GF 236,000 5.375 137
4.5 427,460 6.750 171 4.5 370,700 6.375 162 4.5 302,400 6.000 165 1045G 371,700 6.750 171 4-½GF 324,000 6.500 165
5 584,890 7.750 197 5 508,600 7.500 190 5 434,700 6.500 180 1050G 500,900 7.375 187 5GF 441,000 7.000 178
5.5 771,300 8.625 220 5.5 670,700 8.375 212 5.5 573,300 7.500 200 1055G 655,200 8.250 210 5-½GF 580,000 7.750 197
*Note: Special fasteners may be required.

10 630-852-0500
 Kop-Flex®
Kop-Flex® FAST Kop-Flex® H Series Waldron® Series Renold® Ajax® Series Ameridrives® Series F
Torque Max Max Torque Max Max Torque Max Max Torque Max Max Torque Max Max
Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Bore
Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm)
1 7,500 1.625 41 1 6,300 1.625 41 1 12,700 1.630 46 201¼ 7,600 1.630 41
1½ 17,000 1.625 41 1½ 17,000 2.250 57 1½ 15,100 2.188 56 1-½ 23,800 2.130 57 201½ 17,000 2.250 57
2 31,500 2.125 54 2 31,500 2.875 73 2 31,500 2.750 70 2 40,600 2.750 78 202 31,500 2.750 70
2½ 56,700 2.750 70 2½ 56,700 3.500 89 2½ 56,700 3.250 83 2-½ 65,700 3.250 90 202½ 53,600 3.500 89
3 101,000 3.125 79 3 101,000 4.000 102 3 94,500 4.000 102 3 108,000 4.000 110 203 94,500 4.000 102
3½ 148,000 3.750 95 3½ 148,000 4.625 117 3½ 145,000 4.750 121 3-½ 166,000 4.500 127 203½ 142,000 4.500 114
4 236,000 4.250 108 4 236,000 5.500 140 4 221,000 5.375 137 4 264,000 5.380 145 204 214,000 5.500 140
4½ 318,000 4.750 121 4½ 318,000 6.250 159 4½ 300,000 6.000 152 4-½ 365,000 6.000 165 204½ 324,000 6.250 159
5 441,000 5.500 140 5 441,000 7.125 181 5 410,000 6.750 171 5 489,000 6.630 185 205 416,000 6.620 168
5½ 580,000 5.875 149 5½ 580,000 8.000 203 5½ 536,000 7.500 191 5-½ 725,000 7.500 205 205½ 551,000 7.500 191
6 759,000 6.500 165 6 759,000 8.875 225 6 693,000 8.250 210 6 925,000 8.130 225 206 750,000 8.250 210
7 1,160,000 8.000 203 7 1,160,000 10.375 264 7 1,010,000 9.250 235 7 1,390,000 9.630 260 207 1,033,000 9.620 244

Kop-Flex®
Kop-Flex® FAST Kop-Flex® H Series Waldron® Series Renold® Ajax® Series Ameridrives® Series F
Torque Max Max Torque Max Max Torque Max Max Torque Max Max Torque Max
Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Bore Rating Bore Max Bore
Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm) Size (in-lbf) (in) (mm)
1 7,500 1.625 41 1 6,300 1.625 41 1 12,700 1.630 46 201¼ 7,600 1.630 41
1½ 17,000 1.625 41 1½ 17,000 2.250 57 1½ 15,100 2.188 56 1-½ 23,800 2.130 57 201½ 17,000 2.250 57
2 31,500 2.125 54 2 31,500 2.875 73 2 31,500 2.750 70 2 40,600 2.750 78 202 31,500 2.750 70
2½ 56,700 2.750 70 2½ 56,700 3.500 89 2½ 56,700 3.250 83 2-½ 65,700 3.250 90 202½ 53,600 3.500 89
3 101,000 3.125 79 3 101,000 4.000 102 3 94,500 4.000 102 3 108,000 4.000 110 203 94,500 4.000 102
3½ 148,000 3.750 95 3 ½ 148,000 4.625 117 3½ 145,000 4.750 121 3-½ 166,000 4.500 127 203½ 142,000 4.500 114
4 236,000 4.250 108 4 236,000 5.500 140 4 221,000 5.375 137 4 264,000 5.380 145 204 214,000 5.500 140
4½ 318,000 4.750 121 4 ½ 318,000 6.250 159 4½ 300,000 6.000 152 4-½ 365,000 6.000 165 204½ 324,000 6.250 159
5 441,000 5.500 140 5 441,000 7.125 181 5 410,000 6.750 171 5 489,000 6.630 185 205 416,000 6.620 168
5½ 580,000 5.875 149 5 ½ 580,000 8.000 203 5½ 536,000 7.500 191 5-½ 725,000 7.500 205 205½ 551,000 7.500 191

lovejoy-inc.com 11
Data H E R C U F L E X

Additional
Dimensional Data
BORE HD

Hub Dimensions
HD BORE L1 L2 L3 TW LTB LTB 1
Size RSB STD UNIV HUB
(in) (in) (in) (in) (in) (in) (in) (in)
1 2.49 Solid 2.75 0.44 0.75 0.50 1.69 4.00
1.5 3.29 Solid 3.13 0.57 0.81 0.56 1.94 4.50
2 4.21 Solid 3.63 0.57 1.25 0.62 2.44 5.50
2.5 4.97 1.47 4.22 0.75 1.53 0.75 3.03 6.50
3 5.88 1.47 4.43 1.02 1.69 0.88 3.59 7.00
3.5 6.87 1.84 4.62 1.31 1.88 1.00 4.19 7.50
4 8.10 2.47 4.97 1.47 2.16 1.12 4.75 8.25
4.5 9.09 3.00 5.19 1.50 2.56 1.25 5.31 9.00
5 10.24 3.00 5.06 1.59 2.94 1.50 6.03 9.50
5.5 11.28 4.00 5.56 1.97 3.19 1.75 6.91 10.50
6 12.29 4.00 5.65 1.81 3.22 2.38 7.41 11.25
7 14.30 5.00 7.00 2.50 3.81 2.38 8.69 13.19

Flex Hub Puller Bolt Holes

H
B.C. Diameter
Size (in) UNC Depth
1 None None None
1.5 None None None
2 3.38 5/16 - 18 0.50
2.5 3.94 3/8 - 16 0.56
3 4.94 1/2 - 13 0.75
3.5 5.56 1/2 - 13 0.75
4 6.44 5/8 - 11 0.94
4.5 7.38 5/8 - 11 0.94
5 8.00 3/4 - 10 1.13
5.5 9.00 1-8 1.50
6 9.75 1-8 1.50
7 11.63 1-8 1.50

12 630-852-0500
Sleeve and Bolt Dimensions
EXPOSED BOLTS SHROUDED BOLTS
Min Max
B.C. Min Max B.C.
Length Body Grip
LS W DC FD CBD Dia. THD Length Body Grip CBD 1 L Dia. THD
Size (in) (in) (in) (in) (in) (in) Qty Size (in) (in) (in) (in) (in) (in) Qty Size (in) (in) (in)
1 1.66 0.56 0.09 4.56 3.03 3.750 6 1/4-28 1.50 0.63 1.063 0.64 0.25 3.750 6 1/4-28 0.81 0.281 0.438
1.5 1.88 0.75 0.09 6.00 3.91 4.812 8 3/8-24 2.00 0.88 1.438 0.81 0.25 4.812 8 3/8-24 1.00 0.281 0.438
2 2.38 0.75 0.09 7.00 4.89 5.875 6 1/2-20 2.25 0.88 1.406 0.81 0.25 5.812 10 3/8-24 1.00 0.281 0.438
2.5 2.88 0.88 0.09 8.38 5.81 7.125 6 5/8-18 2.75 1.00 1.656 1.06 0.31 7.000 10 1/2-20 1.25 0.375 0.531
3 3.31 0.88 0.09 9.44 6.73 8.125 8 5/8-18 2.75 1.00 4.656 1.06 0.31 8.000 12 1/2-20 1.25 0.375 0.531
3.5 3.81 1.13 0.09 11.00 7.73 9.500 8 3/4-16 3.25 1.25 2.156 1.31 0.38 9.281 12 5/8-18 1.50 0.438 0.656
4 4.25 1.13 0.19 12.50 9.02 11.000 8 3/4-16 3.25 1.25 2.156 1.31 0.38 10.625 14 5/8-18 1.50 0.438 0.656
4.5 4.81 1.13 0.19 13.63 10.08 12.000 10 3/4-16 3.25 1.25 1.156 1.31 0.38 11.750 14 5/8-18 1.50 0.438 0.656
5 5.50 1.50 0.19 15.31 11.36 13.500 8 7/8-14 4.25 1.69 2.875 1.56 0.56 13.188 14 3/4-16 2.00 0.625 1.031
5.5 6.00 1.50 0.19 16.75 12.58 14.500 14 7/8-14 3.00 1.13 1.750 1.56 0.56 14.437 16 3/4-16 2.00 0.625 1.031
6 6.69 1.00 0.25 18.00 13.75 15.750 14 7/8-14 3.25 1.19 1.875
Exposed Bolts Only
7 7.38 1.13 0.31 20.75 15.86 18.250 16 1-14 3.50 1.31 2.125

lovejoy-inc.com 13
Rigid Series
H E RHCEU R
F LCE U
X FR LI GEI X

RA and RAHS Type Rigid

Adjustable Couplings
D A D J U S TA B L E C O U P L I N G S

The RA and RAHS couplings are offered in two different

styles. Type II coupling consists of two rigid hubs, adjusting
nut and split ring and split ring for motor hub. Type IV
coupling consists of two rigid hubs, adjusting nut, and split
ring for motor hub and spacer.

Key Features
• Axial positioning of the pump impeller in vertical pump
applications
• Clearance fit bores allows for easy installation and
maintenance for pump and/or motor
• Easily adjustable for vertical clearance
• Removable spacer for easy maintenance
• AISI 1045 Steel
• Stainless Steel coupling also available

RA and RAHS Type Performance Data

Motor & Pump Hubs Motor & Pump Hubs
HP/100 Nominal Thrust Min Bore Max Bore
RPM Torque Capacity
Size in-lb lbs in mm in mm
1125 2.7 1,702 4,500 0.44 11 1.125 29
1625 8.0 5,042 11,000 0.63 16 1.625 42
2125 17.9 11,282 31,000 0.73 18 2.125 56
2625 33.8 21,302 31,000 0.88 22 2.625 70
2875 44.4 27,983 31,000 0.88 22 2.875 77
3125 57.0 35,924 41,000 1.19 30 3.125 84
3875 109.0 68,697 73,000 1.25 31 3.875 103
5000 310.0 195,378 160,000 2.38 60 5.000 135
6000 404.0 254,621 300,000 2.88 73 6.000 167
7250 712.0 448,738 300,000 4.00 101 7.250 194
8500 1148.0 723,527 350,000 4.00 101 8.500 225
10500 2164.0 1,363,861 400,000 5.00 127 10.500 276
Ordering Information
• Application: Driver and Driven. • Shaft sizes.
• Power: Motor horspower or torque • Adjusting nut threads.
requirement. • Amount of trust on either or both shafts.
• Speed: Motor Speed or Driven RPM. • Submit drawing if available.
• Distance between shaft ends (BSE).

14 630-852-0500
 Item Description
1 Upper Hub - Motor
2 Lower hub - Pump
3 Spacer
4 Adjusting Nut, Threaded
5 Washer, Split
6 RA and RAHS Accessory Kit
7 RA and RAHS Accessory Kit

RA and RAHS Type Dimensional Data

STD OAL FD D LTB LTB1 LS DC SL D1 D2 S Bolt Circle
6 & 7
Type II Type IV Std Min BOLTS
Diameter
Size in in in in in in in in in in in in in Qty Size in
1125 5.25 9.56 3.00 1.75 2.13 1.11 2.00 0.89 0.88 1.75 1.25 4.44 1.63 4 1/4 - 28 2.375
1625 6.00 10.31 4.00 2.50 2.38 1.36 2.25 0.89 0.88 2.50 1.75 4.44 1.75 6 5/16 - 24 3.250
2125 7.13 11.44 5.13 3.13 2.81 1.80 2.69 0.89 1.00 3.13 2.25 4.44 2.63 6 1/2 - 20 4.250
2625 9.38 13.69 5.88 3.88 3.06 2.05 2.94 0.89 1.13 3.88 2.75 4.44 2.63 6 1/2 - 20 4.938
2875 10.38 14.69 6.38 4.38 3.56 2.55 3.44 0.89 1.38 4.38 3.00 4.44 2.88 6 1/2 - 20 5.438
3125 11.50 15.81 6.75 4.63 4.13 3.11 4.00 0.89 1.63 4.63 3.25 4.44 2.88 8 1/2 - 20 5.813
3875 12.75 17.06 8.94 5.88 4.50 3.48 4.38 0.89 1.75 5.88 4.00 4.44 3.13 6 3/4 - 16 7.625
5000 15.00 NO STD 11.75 7.50 6.25 4.63 6.00 1.38 2.44 7.50 5.13 NO STD 4.50 8 1 - 14 10.000
6000 20.88 NO STD 13.25 9.00 9.50 7.63 9.25 1.63 4.00 9.00 6.13 NO STD 4.75 10 1 - 14 11.500
7250 25.19 NO STD 15.00 10.75 11.06 8.81 10.75 1.94 4.75 10.75 7.38 NO STD 7.06 14 1 - 14 13.250
7500 33.56 NO STD 17.25 12.50 15.31 13.06 15.00 1.94 6.63 12.50 8.63 NO STD 7.31 12 1-1/8 - 12 15.000
10500 40.94 NO STD 20.50 15.00 18.69 16.44 18.38 1.94 8.13 15.00 10.63 NO STD 8.31 12 1-1/8 - 12 18.000
Ordering Information
• Clearance fit bores with set screw are • For metric bore and keyway tolerances,
standard. consult Lovejoy Application Engineering.
• RA couplings meet standard tolerances. • RAHS couplings conform to API 610.
• Inch bore and keyway tolerances conform
to AINSI / AGMA 9002-B04.

lovejoy-inc.com 15
Continuous
HERCUFLEX CONTINUOUS SLEEVE COUPLINGS

Sleeve
HercuFlex Continuous
Sleeve Gear Couplings
Vertical Floating Shaft Type
The upper coupling is a Standard Vertical
Type coupling. The lower coupling has a
hardened crowned button inserted in the
plate of the lower hub and a hardened flat
button inserted in the plate of the upper
hub. The entire floating assembly rests on
these two buttons which carry the weight
of the floating assembly thus maintaining
the spacing between the two lower hubs
allowing for flexibility. The hubs on the
floating shaft are flexible and the hubs of
the driver and driven shafts are rigid.

Brakedrum Type Brake Disc Type

Two different designs of brakedrum couplings Two different designs of brake disc couplings
are illustrated. One shows the brakedrum as are illustrated. One shows the brake disc as
an intergal part of the sleeve and the two hybs an intergal part of the sleeve and the two
are standard. The other design utilizes one hybs are standard. The other design utilizes
standard hub and a standard sleeve with the one standard hub and a standard sleeve with
brakedrum as part of a special hub. the brakedrum as part of a special hub.

16 630-852-0500
 Sliding Hub Type
The sleeve is longer than standard and is
designed to allow for a predetermined amount of
axial travel on one shaft. The short hub is secured
to the sleeve by means of a spacer washer and
snap ring which prevents travel. This type is also
manufactured to allow for travel of both hubs in
the sleeve. This coupling is also available with a
rigid type short hub.

Jordan Type
Used on Jordan machines and refiners, this
design is similar to the Sliding Hub Type
coupling except the long hub is split and
secured to the shaft with a bolt. This permits
for quick axial adjustment of the Jordan shafts
in the hub.

Continuous Lubricated Type

This coupling is adapted from our Standard
Type coupling, except the standard seals
have been replaced with the special spacer
washers. These washers have a snug fit in
the sleeve with sufficient clearance on the
hub OD to allow for injection of a continuous
stream of lubricant.

lovejoy-inc.com 17
Flanged
HERCUFLEX FLANGED SLEEVE COUPLINGS

HercuFlex Flanged Sleeve

Sleeve
Gear Couplings
Limited End Float Spacer Type
The addition of plates restricts axial travel to the drive or
driven shaft. The spacer makes it possible to remove the hubs
from either shaft without disturbing the connected units.

Vertical Floating Shaft Type

The lower coupling has a hardened
crowned button inserted in the
plate of the lower hub. The entire
floating assembly rest on the
button. Optional construction of Vertical Type
the upper coupling would be a rigid
This coupling has the same horsepower,
hub on the floating shaft with a flex
RPM and misalignment capabilities as the
half on the top.
standard couplings of corresponding sizes.
A plate with a hardened crowned button
rests on the lower shaft which supports
the weight of the sleeve.

Insulated Type Jordan Type

Use of a non-metallic material Used on Jordan machines and refiners, this design is similar
between flanges and around the to the slide type coupling except the long hub is split and
bolts prevents any stray currents secured to the shaft with a bolt clamp. This permits quick axial
from one shaft to the other. adjustment of the Jordan shafts in this hub.

18 630-852-0500
Engineered Shear Pin Type Brakewheel and Brake Disc Type
Shear pin couplings are primarily used to limit Replaceable brakewheel and brake disc piloted
transmitted torque to a redetermined load. THis on the outside diameter of a standard sleeve and/
in turn disconnectes the driver and driven shafts or rigid hub. Offers a choice of applying braking
if torque exceeds the specified limits. They are effort to the load or driving motor.
especially suited to protect equipment when jams
occur. Components are re-useable after pins shear.
The coupling will retain lubricant for a short period
to allow equipment to be shut down.

Double Engagement Half Gear Type Rigid Alloy Steel FARR Type
Both internal and external teeth in a single Male/Female piloted rigid coupling coupling
sleeve. Can be bolted to a rotating flywheel, with keeper plates. This coupling is used when
shaft or drum to connect driver or driven a rigid connection is required between the low
machine with a shaft extension. This coupling speed shaft of a gearbox and the head shaft
has the same features, ratings and misalignment of a conveyor, bucket elevator, mixer or any
capability as the standard group of couplings. overhung or suspended load.

lovejoy-inc.com 19
Why Coupling Grease?
H lubrication
Adequate E R C isUessential
F L for E satisfactory
X gear coupling
operation. Lovejoy Gear Coupling Grease is specifically designed
for gear coupling applications to increase coupling life while
drastically reducing maintenance time. Its high viscosity base oil
and tackifier combine to keep the grease in place and prevent
separation and it is in complete compliance with NSI/AGMA 9001-
B97 lubrication recommendations.

Lovejoy Coupling Grease is dark brown in color and manufactured

with a lithium soap/polymer thickener, which has superior
resistance to oil separation when subjected to high centrifugal
forces normally found in couplings. Bearing or general purpose
greases tend to separate and lose effectiveness due to high
centrifugal forces on the various ingredients at high rotational
speeds. These high centrifugal forces encountered in couplings
separate the base oil from the thickeners. Heavy thickeners, which
have no lubrication qualities, accumulate in the gear tooth mesh
area resulting in premature coupling failure. Lovejoy Gear Coupling
Grease is designed to highly resistant to centrifugal separation of
the oil and thickener, which allows the lubricant to be used for a
relatively long period of time.

One of the secrets to the success of Lovejoy Gear Coupling Grease

is the variable consistency throughout the working cycle of the Typical Properties of Lovejoy Gear Coupling Grease
application. The consistency of our gear coupling grease changes
NLGI Grade 0/1
with the operating conditions. Working of the lubricant under
Appearance Dark Brown, Tacky
actual service conditions causes the grease to become semi-fluid,
Lithium Soap / Polymer, wt% 10.0
functionally solash lubricating the wear surfaces of the coupling.
Viscosity
As the grease cools, it returns to the original consistency, thereby
preventing leakage. @ 40° C, cST >3200
@ 100° C, cSt >50
Penetration. Dmm
Lovejoy Gear Coupling Grease is available from stock in Worked, 60x 350
14 oz. cartridges, 1 lb. and 5 lb. cans. Worked, 10,000, % Change 10
Dropping Point, ° F 320° (160° C)
Features Centrifugal Oil Separation, vol% None
• Minimizing of coupling wear
Water Spray-Off, wt% >3
• Resistance to water washing Rust Protection Pass
• Corrosion and rust protection Timken, OK Load, lbs 40+
• High load carrying capabilities Four-Bal EP
• Extended relubrication frequency Load Wear Index, kgf 68
• Use at temperatures up to 325° F Weld Point, kgf 400
• Staying in place under high speeds Four-Ball Wear, mm
• Resistance to centrifugal separation 1 hr, 75° C, 1200 RPM, 40 kgf 0.4
• Reduction in down time & maintenance cost Guide to Usable Temperature
Min, ° F Below -20° (-29° C)
Continuous Service, Max, ° F 250° (121° C)
Lovejoy Gear Coupling Grease has a consistency which overlaps Short Exposure, Max, ° F 325° (163° C)
the NLGI grades 0 and 1. This grease is specially formulated
with a lithium/polymer thickener and fortified with corrosion,
oxidation, extreme pressure, and a effective rust inhibitor
additive package.

20 630-852-0500
Selection Worksheet
Customer Name:____________________________________ Contact Name: ______________________________________

Phone Number:______________________________________ Email Address: ______________________________________

1. Type of Driver (Electric Motor, Combustion Engine, Gearbox, etc.) : ___________________

For combustion engines, define type
Gasoline, Diesel, Natural Gas, etc. : ______________ Number of cylinders _______
2. Driver Horse Power : ____________ 3. Driver or Gearbox output RPM : _____________
Retrieve the Application Service Factor from page 3 : ______________ then
calculate the Selection Torque using the following formula:
Torque (in-lbs) = HP x 63025 x Service Factor = Selection Torque = ____________ in-lbs
RPM For additional bore and keyway
4. Driver Shaft Diameter : _________ Keyway size : KW Width _________ KW Height _________ information, see the Engineering
Specify Clearance Fit, Interference Fit, Metric (P7, H7, etc), Shaft Locking Device, Data Section of the Power
Transmission Products Catalog
and Set Screw or No Set Screw

5. Driver Usable Shaft Length : ___________ (Measure from the end of the shaft to any obstruction)

6. Distance between shaft ends (BSE) : _______________

7. Type of Driven Equipment : _______________________________________

8. Driven Shaft Diameter : _________ Keyway size : KW Weight _________ KW Height _________
Specify Clearance Fit, Interference Fit, Metric (P7, H7, etc), Shaft Locking Device, and Set Screw or No Set Screw

9. Driven Usable Shaft Length : ___________ (Measure from the end of the shaft to any obstruction)

10. Total Mounting Length : ______________ (Advise of any obstructions, walls, beams, guards, pipes, etc.)

11. For Tapered Shafts specify the following:

Minimum or Maximum Taper diameter: ________________________
Taper Length: ___________ T (Taper Inch per Foot) : _____________
Gap or Hub Overhang amount: ______________________________
Locknut Width: ___________ Size of nut cross corners: ___________
Thread Size: _____________ Thread Length: __________________
Washer Diameter (if used) : ____________ Washer Width: ________

Lovejoy, Inc. Send this form to: appleng@lovejoy-inc.com

World Headquarters
2655 Wisconsin Avenue, Downers Grove, IL 60515
or fax to: 800-446-0878

lovejoy-inc.com 21
 H E R C U F L E X

Safety Warning
When using Lovejoy products, you must follow these instructions and take the following
precautions. Failure to do so may cause the power transmission product to break and parts
to be thrown with sufficient force to cause severe injury or death.

Refer to this Lovejoy Catalog for proper selection, sizing, horsepower, torque range, and
speed range of power transmission products, including elastomeric elements for couplings.
Follow the installation instructions included with the product, and in the individual product
catalogs for proper installation of power transmission products. Do not exceed catalog
ratings.

During start up and operation of power transmission product, avoid sudden shock loads.
Coupling assembly should operate quietly and smoothly. If coupling assembly vibrates or
makes beating sound, shut down immediately, and recheck alignment. Shortly after initial
operation and periodically thereafter, where applicable, inspect coupling assembly for:
alignment, wear of elastomeric element, bolt torques, and flexing elements for signs of
fatigue. Do not operate coupling assembly if alignment is improper, or where applicable, if
elastomeric element is damaged, or worn to less than 75% of its original thickness.

Do not use any of these power transmission products for elevators, man lifts, or other
devices that carry people. If the power transmission product fails, the lift device could fall
resulting in severe injury or death.

For all power transmission products, you must install suitable guards in accordance with
OSHA and American Society of Mechanical Engineers Standards. Do not start power
transmission product before suitable guards are in place. Failure to properly guard these
products may result in severe injury or death from personnel contacting moving parts or
from parts being thrown from assembly in the event the power transmission product fails.

If you have any questions, contact the Lovejoy Engineering Department at 1-630-852-0500.

22 630-852-0500
Product Warranty
Lovejoy, Inc. warrants all products it manufactures to be free from defects in material and workmanship
at the time of delivery to the purchaser. Defective products may be returned to Lovejoy after inspection
by the purchaser and upon receipt from Lovejoy of shipping instructions specific to the defective products
authorized by Lovejoy to be returned. Products returned in accordance with the foregoing procedure will be
replaced or repaired, at the option of Lovejoy, without charge and returned to the purchaser F.O.B. Downers
Grove, Illinois or South Haven, Michigan, depending upon origin of manufacture. In all cases, transportation
costs and charges for returned products shall be paid by the purchaser and Lovejoy hereby disclaims all
responsibility for any and all such transportation costs and charges.

This warranty is subject to the following LIMITATIONS:

The purchaser’s exclusive remedy under this warranty is limited to the repair or replacement of defective
products supplied by Lovejoy, as set forth above. LOVEJOY IS NOT RESPONSIBLE FOR ANY SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE BREACH OF THIS OR ANY OTHER
EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE PRODUCTS, WHETHER ARISING IN TORT OR
BY CONTRACT. LOVEJOY FURTHER DISCLAIMS ALL LIABILITY FROM PERSONAL INJURY RELATING TO ITS
PRODUCTS TO THE EXTENT PERMITTED BY LAW. BY ACCEPTANCE OF ANY OF LOVEJOY’S PRODUCTS, THE
PURCHASER ASSUMES ALL LIABILITY FOR THE CONSEQUENCES ARISING FROM THEIR USE OR MISUSE.

This express warranty is the only warranty applicable to this transaction. IT EXCLUDES ALL OTHER EXPRESS
ORAL OR WRITTEN WARRANTIES AND ALL WARRANTIES IMPLIED BY LAW WITH RESPECT TO THE
PRODUCTS, INCLUDING ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Every claim under this warranty shall be deemed waived by the purchaser unless made in writing within one
(1) year of the receipt of the products to which such claim relates. This warranty is void in the event that
repairs are made by anyone other than Lovejoy without prior authorization from Lovejoy. No person, firm or
corporation is authorized to assume for Lovejoy any other liability in connection with the sale of its products.
No person, firm or corporation is authorized to modify or waive the terms of this Warranty unless done in
writing and signed by a duly authorized agent of Lovejoy.

Note: Specifications are subject to change without notice, and without liability therefor.

lovejoy-inc.com 23
 The Reinvention of the
Gear Coupling

Lovejoy, Inc. R+L Hydraulics GmbH Lovejoy Canada

World Headquarters Friedrichstrasse 6 171 Superior Boulevard
2655 Wisconsin Avenue D-58791 Werdohl Mississauga, Ontario
Downers Grove, IL 60515 U.S.A. Germany Canada L5T 2L6
Phone: 630-852-0500 Phone +49 (0) 23 92 / 5 09-0 Phone: 905-670-9421
Fax: 630-852-2120 Fax +49 (0) 23 92 / 5 09-509 Fax: 905-670-4594
info@lovejoy-inc.com info@rl-hydraulics.com lovejoycanada@lovejoy-inc.com
www.lovejoy-inc.com www.rl-hydraulics.com www.lovejoy-inc.com

Other Lovejoy Affiliates:

Lovejoy Powder Metal Group ISO 9001:2008 Certified
Manufacturer of made-to-order powder metal components
www.lovejoy-inc.com

Your Authorized Lovejoy Distributor is:

Lovejoy® is a registered trademark of Lovejoy, Inc. All other trademarks, brands, and names mentioned in this publication are property of their respective owners.
4/16 Rev D UPC 69790448305