Curved Jaw v5
Curved Jaw v5
JW
JIS
JIS
Curved Jaw
CJ
CJ
SFE
SFE
IN THIS SECTION:
• CJ Series
MC
MC
• GS Series
G
HP
HP
GD
GD
D
D
T
T
SP
SP
UJ
UJ
VSD
VSD
RR
RR
SLD
SLD
ED
ED
1-630-852-0500 49 CJ- 1
HD
HD
JW
JW
JIS
JIS
Warnings
CJ
CJ
SFE
SFE
WARNING
MC
MC
Failure to observe the following warnings could cause the power transmission product to break and parts to
be thrown with sufficient force to cause serious injury or death.
G
Selection. Do not exceed catalog ratings. Refer to the Lovejoy catalog for proper selection, sizing, horsepower, torque
range, and speed range of these products.
Installation. Proper maintenance, handling, and shop practices are critical. Follow all installation instructions included
HP
HP
with the product and provided by your equipment manufacturer, and all applicable federal, state, and local regulations
concerning the safe operation and maintenance of manufacturing equipment.
Operation. Avoid sudden shock loads during start up and operation.
GD
GD
Do not operate a coupling assembly with improper alignment or bolt torque or with damaged or worn elastomeric
elements. Inspect the assembly for these conditions shortly after initial operation and periodically thereafter.
The coupling assembly should operate quietly and smoothly. If the coupling assembly vibrates or makes a beating sound,
shut down the equipment immediately and recheck the alignment.
D
Disclaimer
T
This catalog is provided solely to give you analysis tools and data to assist you in your product selection. Product
performance is affected by many factors beyond the control of Lovejoy. Therefore, you must validate the suitability
and feasibility of all product selections for your applications.
SP
SP
Lovejoy does not manufacture or sell power transmission products for elevators, man lifts, or other
devices that carry people. We make no representation or warranty concerning such uses disclaim all
UJ
UJ
liability for harm that might result from the use of our products in those applications.
Lovejoy products are sold subject to Lovejoy terms and conditions of sale (view at www.lovejoy-inc.com/resources),
VSD
VSD
which include our limited warranty and remedy. Please consult with your Lovejoy engineer for more information
and assistance.
RR
RR
Every reasonable effort has been made to ensure the accuracy of the information in this writing, but no liability is
accepted for errors, omissions or for any other reason.
SLD
SLD
If you have any questions, contact the Lovejoy Engineering Department at 1-630-852-0500.
ED
ED
CJ- 2 50 www.lovejoy-inc.com
HD
HD
JW
JW
JIS
JIS
CJ
CJ
Table of Contents
SFE
SFE
MC
MC
Running Section
Page No. Page No.
CJ Series Design / Elastomers > Overview..............................................................................................52...................CJ-4
G
CJ Series > Selection Process.....................................................................................................................53...................CJ-5
CJ Series Elastomer Torque Rating > Performance Data......................................................................54...................CJ-6
HP
HP
CJ Series Spiders > Dimensional Data......................................................................................................56...................CJ-8
CJ Series Powder Metal / Steel > Dimensional Data..............................................................................57...................CJ-9
GD
GD
CJ Series Aluminum / Cast Iron / Nodular Iron > Dimensional Data..................................................58.................CJ-10
CJ Series Powder Metal / Cast Iron > Item Selection.............................................................................59.................CJ-11
CJ Series Aluminum > Item Selection......................................................................................................60.................CJ-12
D
CJ Series > Displacement / Misalignment...............................................................................................61.................CJ-13
CJ Series CJDB / CJSB > Dimensional Data..............................................................................................62.................CJ-14
T
CJ Series CJLFH / CJDLF / CJSFH / CJDSF > Dimensional Data............................................................63.................CJ-15
CJ Series CJSPC / CJDSPC > Dimensional Data.......................................................................................64.................CJ-16
Taper Lock > Dimensional Data.................................................................................................................65.................CJ-17
SP
SP
GS Series > Overview / Performance........................................................................................................66.................CJ-18
GS Series > Dimensional Data....................................................................................................................67.................CJ-19
UJ
UJ
GS Series > Selection Process....................................................................................................................68.................CJ-20
GS Series Performance / Torque Ratings > Performance Data............................................................69.................CJ-21
VSD
VSD
GS Series Hubs > Selection Data...............................................................................................................70.................CJ-22
GS Series Misalignment > Performance Data.........................................................................................71.................CJ-23
RR
RR
SLD
SLD
ED
ED
1-630-852-0500 51 CJ- 3
HD
HD
Curved Jaw
CJ Series Design / Elastomers
Overview
JW
JIS
■■Hubs are offered in sintered iron, steel, aluminum, cast iron and nodular iron materials
■■Four different urethane elastomers available
■■No metal to metal contact and no lubrication required
CJ
CJ
■■Fail safe design due to the jaw in compression design (continues to function after the elastomer fails)
■■The CJ series covers a torque range of 67 to 247,800 in-lbs
SFE
SFE
Elastomers
■■Four types of spiders are available for the CJ Series of couplings
■■Urethane spiders provide high abrasion resistance and elasticity, along with good
MC
MC
damping characteristics
■■The spiders are offered in a variety of shore hardnesses, each providing a different level
of torque capacity, damping, and chemical resistance
G
■■The 92A shore insert (yellow) is the standard, offering excellent torque carrying capacity
■■The 80A shore insert (blue) offers the best damping characteristics
■■The 95/98A shore spider (red) offers higher torque than the standard 92 shore, but
HP
HP
retains greater damping capacity compared to the 64D shore insert (green)
■■The 64D shore insert is offered for high humidity environments, higher temperatures,
and offers the highest torque capacity
GD
GD
■■The standard curved jaw spider design has a hole in the center to accommodate small
between shaft end measurements Standard Spider Design
■■The 80A, 92A, and 95/98A shore spiders have a temperature capacity of 212° F
■■The 64D shore spider has a temperature capacity of 230° F
D
■■The curved jaw spider’s urethane material also resists oil, dirt, sand, grease, moisture, many solvents, as well as atmospheric effects of ozone
T
SP
UJ
VSD
Spider Type Color Material Temperature Range Stock Misalignment (inches) Typical Applications
Normal Maximum Sizes Angular Parallel Axial
80 Shore A Blue Polyurethane -40° to 212° F -40° to 248° F 14-180 .9 - 1.3 deg .008 - .027 .039 - .252 Good dampening properties
RR
RR
92 Shore A Yellow Polyurethane -40° to 212° F -50° to 248° F 14-180 .9 - 1.3 deg .008 - .027 .039 - .252 General & hydraulic
95/98 Shore A Red Polyurethane -40° to 212° F -40° to 248° F 14-180 .9 - 1.3 deg .008 - .027 .039 - .252 High torque requirements
SLD
SLD
ED
64 Shore D Green Polyurethane -30° to 230° F -30° to 266° F 14-180 .9 - 1.3 deg .008 - .027 .039 - .252 High humidity environments
CJ- 4 52 www.lovejoy-inc.com
HD
HD
Curved Jaw
CJ Series
Selection Process
Step 1: Determine the nominal torque (Tkn) of your application: Step 5: Next find the columns listing Tkn and Tkmax values listed in
JW
JW
Nm and compare them against the DTkmax figure for your
Tkn (in-lbs) = HPx63025 application. Make sure that the spider/coupling size values
RPM are larger than the application values.
JIS
JIS
Step 2: Calculate your Application Service Factor using the charts below. Step 6: Once the size is selected using the torque values, check the
The total Service Factor (K) will be: table on page CJ-9 to make sure the bore size needed will
fit in the coupling.
K = K1 x K2 x K3
CJ
CJ
Step 7: Double check the overall dimensions of the coupling to
Step 3: Calculate the design torque (DTkmax) of your application. ensure that it will fit in the space allowed for the coupling in
the application.
SFE
SFE
Design Torque (DTkmax) = Tkn x K (in-lbs)
*This selection process is based on application factors only. A selection
Step 4: Using the Elastomer Torque Ratings Tables on pages CJ-6 and process is also available using DIN 740 part 2 standard. Consult with Lovejoy
CJ-7 select the urethane shore hardness which best corresponds Engineering for details.
MC
MC
to your relative damping needs in the application.
G
Application Service Factor (K1) Application Service Factor for Starts per Hour (K2)
HP
HP
Service
Starts Per Hour 100 200 400 800
Application Service Factor Factor
(K1) Service Factor (K2) 1.0 1.2 1.4 1.6
Uniform operation with small masses to be accelerated.
GD
GD
Hydraulic and centrifugal pumps, light generators, blowers, 1.0
fans, ventilators, belt/screw conveyors. Application Service Factor for Ambient Temperature (K3)
Uniform operation with medium masses to be accelerated. Ambient Temperature -30° to 30° C 40° C 60° C 80° C
Sheet metal bending machines, wood working machines, 1.2
D
mills, textile machines, mixers. Service Factor (K3) 1.0 1.2 1.4 1.6
Irregular operation, with medium masses to be accelerated.
Rotating ovens, printing presses, generators, shredders, 1.3
winders, spinning machines, pumps for viscous fluids.
T
Definition of Terms
Irregular operation and shocks, with medium masses to be
accelerated concrete mixers, drop hammers, cable cars,
1.4
Tkn Nominal rated coupling torque
paper mills, compression pumps, propeller pumps, rope Tkmax Maximum torque of the coupling
winders, centrifuges.
SP
SP
P[kW] Power in kilowatts
Irregular operation and very heavy shocks, with large masses RPM[1/min] Revolutions per minute
to be accelerated. Excavators, hammer mills, piston pumps, Nm Newton meters
1.6
presses, rotary boring machines, shears, forge presses, stone DTkmax Maximum torque of the application
crushers.
UJ
UJ
Tkw Varying load of an application in kilowatts
Irregular operation and very heavy shocks, with very large Pkw Allowable power loss
masses to be accelerated. Piston type compressors and BX Hub Extended length hub
1.8
pumps without speed variations, heavy roll sets, welding
VSD
VSD
machines, brick presses, stone crushers.
Note: n If people are transported, Lovejoy does not recommend and will
not warranty the use of the coupling.
RR
RR
WARNING
SLD
SLD
You must refer to page CJ-2 for Important Safety Instructions and Precautions for the
ED
ED
1-630-852-0500 53 CJ- 5
HD
HD
Curved Jaw
CJ Series Elastomer Torque Rating
Performance Data
JW
JIS
CJ
SFE
MC
HP
GD
SP
UJ
VSD
RR
SLD
ED
CJ- 6 54 www.lovejoy-inc.com
HD
HD
Curved Jaw
CJ Series Elastomer Torque Rating
Performance Data
JW
JW
Maximum Wind-Up Angle @ Torque Torque Rated HP @
Speed Nominal Maximum Nominal Maximum Nominal Maximum 1200 1800
JIS
JIS
Size RPM Torque Torque in-lbs in-lbs Nm Nm RPM RPM
Urethane Spider 64 Shore D (Green)
19/24 14,000 185 370 21 42 3.5 5.0
CJ
CJ
24/32 10,600 660 1,320 75 149 12.5 18.0
28/38 8,500 1,770 3,540 200 400 30.0 50.0
38/45 7,100 3,585 7,170 405 810 65.0 100.0
SFE
SFE
42/55 6,000 4,955 9,910 560 1 120 90.0 140.0
48/60 5,600 5,795 11,590 655 1 309 110.0 165.0
55/70 4,750 7,300 14,600 825 1 650 125.0 200.0
MC
MC
65/75 4,250 10,395 20,790 1 174 2 349 190.0 290.0
2.5° 3.6°
75/90 3,550 21,240 42,480 2 400 4 799 400.0 600.0
90/100 2,800 39,825 79,650 4 499 8 999 750.0 1 125.0
G
100/110 2,500 54,735 109,470 6 184 12 368 1 040.0 1 550.0
110/125 2,240 79,650 159,300 8 999 17 998 1 515.0 2 275.0
125/145 2,000 110,630 221,260 12 499 24 998 2 100.0 3 160.0
HP
HP
140 1,800 141,600 283,200 15 998 31 996 2 690.0 4 045.0
160 1,500 212,400 424,800 23 997 47 994 4 045.0 6 060.0
180 1,400 309,750 619,500 34 996 69 991 5 900.0 8 850.0
GD
GD
CJ Series Spider UPC Number Selection Table
D
Size Blue 80 Shore A Yellow 92 Shore A Red 95/98 Shore A Green 64 Shore D
T
19 61461 61447 62068 72256
24 61462 61448 62069 72257
SP
SP
28 61463 61449 62070 72258
38 61464 61450 62071 72259
42 61465 61451 62072 72260
UJ
UJ
48 61466 61452 62073 72261
55 – 61453 62074 72262
65 – 61454 62075 72264
VSD
VSD
75 – 61455 62076 72266
90 – 61456 62077 72268
100 – 61457 62078 72270
RR
RR
SLD
ED
1-630-852-0500 55 CJ- 7
HD
HD
Curved Jaw
CJ Series Spiders
Dimensional Data
JW
A H W
Size in mm in mm in mm
JIS
JIS
CJ
SFE
MC
HP
GD
D
D
T
T
SP
SP
CJ 14 CJ 19/24
UJ
UJ
VSD
VSD
RR
RR
SLD
SLD
ED
ED
CJ- 8 56 www.lovejoy-inc.com
HD
HD
Curved Jaw
CJ Series Powder Metal / Steel
Dimensional Data
The Curved Jaw coupling consists of two standard hubs and one spider.
JW
JW
JIS
JIS
CJ
CJ
Configuration One – 2 A Hubs Curved Jaw Coupling Configuration One – 2 B Hubs
SFE
SFE
CJ Series Powder Metal / Steel Dimensional Data
OAL G ID1 - ID2 LTB1 - LTB2 H CL U W OD HD
MC
MC
Hub Min Bore Max Bore*
Size Style in in in mm in mm in in in in in in in
B Style 1.38 0.51 S S 0.63 16 0.43 0.39 0.06 — 0.39 1.18 —
14
BX Style 1.97 0.51 S S 0.63 16 0.73 0.39 0.06 — 0.39 1.18 —
G
A Style 2.60 0.63 S S 0.75 19 0.98 0.71 0.08 0.79 0.47 1.57 1.26
19/24 B Style 2.60 0.63 0.71 18 0.94 24 0.98 0.71 0.08 — 0.47 1.57 —
BX Style 3.54 0.63 S S 0.94 24 1.46 0.71 0.08 — 0.47 1.57 —
HP
HP
A Style 3.07 0.70 0.47 12 0.95 24 1.18 1.06 0.08 0.94 0.55 2.20 1.57
24/32 B Style 3.07 0.70 0.87 18 1.25 32 1.18 1.06 0.08 — 0.55 2.20 —
BX Style 4.65 0.70 0.47 12 1.25 32 1.97 1.06 0.08 — 0.55 2.20 —
A Style 3.54 0.79 0.47 12 1.10 28 1.38 1.18 0.10 1.10 0.59 2.56 1.89
GD
GD
28/38 B Style 3.54 0.79 0.87 22 1.50 38 1.38 1.18 0.10 — 0.59 2.56 —
BX Style 5.51 0.79 0.47 12 1.50 38 2.36 1.18 0.10 — 0.59 2.56 —
A Style 4.49 0.94 0.47 12 1.50 38 1.77 1.50 0.12 1.46 0.71 3.15 2.60
38/45 B Style 4.49 0.94 1.38 35 1.75 45 1.77 1.50 0.12 — 0.71 3.15 —
D
BX Style 6.46 0.94 0.47 12 1.75 45 2.76 1.50 0.12 — 0.71 3.15 —
A Style 4.96 1.02 0.47 12 1.65 42 1.97 1.81 0.12 1.57 0.79 3.74 2.95
42/55 B Style 4.96 1.02 0.55 14 2.13 55 1.97 1.81 0.12 — 0.79 3.74 —
BX Style 6.93 1.02 0.47 12 2.13 55 2.95 1.81 0.12 — 0.79 3.74 —
T
A Style 5.51 1.10 0.47 12 1.88 48 2.20 2.01 0.14 1.77 0.83 4.13 3.35
48/60 B Style 5.51 1.10 1.02 26 2.31 60 2.20 2.01 0.14 — 0.83 4.13 —
BX Style 7.40 1.10 0.47 12 2.31 60 3.15 2.01 0.14 — 0.83 4.13 —
SP
SP
A Style 6.30 1.18 0.47 12 2.13 55 2.56 2.36 0.16 2.05 0.87 4.72 3.86
55/70 B Style 6.30 1.18 1.89 48 2.75 70 2.56 2.36 0.16 — 0.87 4.72 —
BX Style 8.27 1.18 0.47 12 2.75 70 3.54 2.36 0.16 — 0.87 4.72 —
A Style 7.28 1.38 0.47 12 2.50 65 2.95 2.68 0.18 1.85 1.02 5.31 4.53
UJ
UJ
65/75 B Style 7.28 1.38 2.28 58 2.94 75 2.95 2.68 0.18 — 1.02 5.31 —
BX Style 9.25 1.38 0.47 12 2.94 75 3.94 2.68 0.18 — 1.02 5.31 —
A Style 8.27 1.57 0.47 12 2.94 75 3.35 3.15 0.20 2.09 1.18 6.30 5.31
VSD
VSD
75/90 B Style 8.27 1.57 1.97 50 3.50 90 3.35 3.15 0.20 — 1.18 6.30 —
BX Style 10.24 1.57 1.97 50 3.50 90 4.33 3.15 0.20 — 1.18 6.30 —
A Style 9.65 1.77 0.47 12 3.50 90 3.94 3.94 0.22 2.44 1.34 7.87 6.30
90/100 B Style 9.65 1.77 3.11 79 3.94 100 3.94 3.94 0.22 — 1.34 7.87 —
RR
RR
BX Style 11.61 1.77 3.11 79 3.94 100 4.92 3.94 0.22 — 1.34 7.87 —
140 B Style 14.76 2.56 2.00 51 6.25 160 6.10 6.50 0.30 — 2.56 12.60 10.04
160 B Style 16.73 2.95 2.00 51 7.25 185 6.89 7.48 0.35 — 2.95 14.57 11.42
180 B Style 18.70 3.35 2.00 51 7.63 200 7.68 8.66 0.41 — 3.35 16.54 12.80
SLD
SLD
Notes: n * indicates: Maximum bore may be achieved through the use of a n W = Spider thickness.
shallow keyway. n Outside diameter of spider equal to OD.
n CL = Distance between spider and hub face. n H = Inside diameter of spider.
n Max Bore refers to maximum straight bore with keyway allowed in hub. n BX Style = B style hub with a longer length through bore.
ED
ED
1-630-852-0500 57 CJ- 9
HD
HD
Curved Jaw
CJ Series Aluminum, Cast Iron, Nodular Iron
Dimensional Data
The Curved Jaw coupling consists of two standard hubs and one spider.
JW
JW
JIS
JIS
CJ
CJ
SFE
MC
19/24 B Style 2.60 0.63 S S 0.94 24 0.98 0.71 0.08 — 0.47 1.57 —
BX Style 3.54 0.63 S S 0.94 24 1.46 0.71 0.08 — 0.47 1.57 —
A Style 3.07 0.70 0.47 12 0.95 24 1.18 1.06 0.08 0.94 0.55 2.20 1.57
24/32 B Style 3.07 0.70 0.87 18 1.25 32 1.18 1.06 0.08 — 0.55 2.20 —
HP
HP
BX Style 4.65 0.70 0.47 12 1.25 32 1.97 1.06 0.08 — 0.55 2.20 —
A Style 3.54 0.79 0.47 12 1.10 28 1.38 1.18 0.10 1.10 0.59 2.56 1.89
28/38 B Style 3.54 0.79 0.87 22 1.50 38 1.38 1.18 0.10 — 0.59 2.56 —
BX Style 5.51 0.79 0.47 12 1.50 38 2.36 1.18 0.10 — 0.59 2.56 —
GD
GD
A Style 4.49 0.94 0.47 12 1.50 38 1.77 1.50 0.12 1.46 0.71 3.15 2.60
38/45 B Style 4.49 0.94 1.38 35 1.75 45 1.77 1.50 0.12 — 0.71 3.15 —
BX Style 6.46 0.94 0.47 12 1.75 45 2.76 1.50 0.12 — 0.71 3.15 —
A Style 4.96 1.02 0.47 12 1.65 42 1.97 1.81 0.12 1.57 0.79 3.74 2.95
42/55 B Style 4.96 1.02 1.02 26 2.13 55 1.97 1.81 0.12 — 0.79 3.74 —
D
BX Style 6.93 1.02 0.47 12 2.13 55 2.95 1.81 0.12 — 0.79 3.74 —
A Style 5.51 1.10 0.47 12 1.88 48 2.20 2.01 0.14 1.77 0.83 4.13 3.35
48/60
B Style 5.51 1.10 1.02 26 2.31 60 2.20 2.01 0.14 — 0.83 4.13 —
T
SP
UJ
A Style 6.30 1.18 0.47 12 2.17 55 2.56 2.36 0.16 2.05 0.87 4.72 3.86
55/70
B Style 6.30 1.18 1.89 48 2.76 70 2.56 2.36 0.16 — 0.87 4.72 —
A Style 7.28 1.38 0.47 12 2.56 65 2.95 2.68 0.18 1.85 1.02 5.31 4.53
65/75
VSD
VSD
B Style 7.28 1.38 2.28 58 2.95 75 2.95 2.68 0.18 — 1.02 5.31 —
A Style 8.27 1.57 0.47 12 2.95 75 3.35 3.15 0.20 2.09 1.18 6.30 5.31
75/90
B Style 8.27 1.57 1.97 50 3.54 90 3.35 3.15 0.20 — 1.18 6.30 —
A Style 9.65 1.77 0.47 12 3.54 90 3.94 3.94 0.22 2.44 1.34 7.87 6.30
90/100
B Style 9.65 1.77 3.11 79 3.94 100 3.94 3.94 0.22 — 1.34 7.87 —
RR
RR
100 B Style 10.63 1.97 1.57 40 4.33 110 4.33 4.45 0.24 — 1.50 8.86 7.87
110 B Style 11.61 2.17 2.36 60 4.92 125 4.72 5.00 0.26 — 1.65 10.04 9.06
125 B Style 13.39 2.36 2.36 60 5.71 145 5.51 5.79 0.28 — 1.81 11.42 10.43
Notes: n * indicates: Maximum bore may be achieved through the use of a n Outside diameter of spider equal to OD.
SLD
SLD
ED
CJ- 10 58 www.lovejoy-inc.com
HD
HD
Curved Jaw
CJ Series Powder Metal / Cast Iron
Item Selection
The Curved Jaw coupling consists of two standard hubs and one spider.
JW
JW
CJ Series – Metric Aluminum, Powder Metal and Cast Iron UPC Number Selection Table
JIS
JIS
Aluminum Powder Metal Cast Iron
(A) (PM) (CI)
Keyway 14 19/24 24/32 28/38 38/45 42/55 48/60 55/70 65/75 75/90
Size Size B Hub B Hub B Hub B Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub
CJ
CJ
RSB* 71577 61154 60880 60881 60882 62414 62048 62415 62059 62416 62060 62417 62061 62418 62062
8mm 2x1 — — — — — — — — — — — — — — —
SFE
SFE
9mm 3 x 1.4 — — — — — — — — — — — — — — —
10mm 3 x 1.4 — — — — — — — — — — — — — — —
11mm 4 x 1.8 — — — — — — — — — — — — — — —
MC
MC
12mm 4 x 1.8 — — — 70186 — — — — — — — — — — —
14mm 5 x 2.3 — — — 69376 — — — — — — — — — —
15mm 5 x 2.3 — — — 71983 — — — — — — — — — — —
16mm 5 x 2.3 — — — 68549 — — — — — — — — — — —
G
18mm 6 x 2.8 — — — 71984 — — — — — — — — — — —
19mm 6 x 2.8 — 61156 — 61109 — — — — — — — — — — —
HP
HP
20mm 6 x 2.8 — 65080 — 61164 — — — — — — — — — — —
22mm 6 x 2.8 — — 67509 66855 — — — — — — — — — — —
24mm 8 x 3.3 — 61157 61104 61110 — — — — — — — — — — —
GD
GD
25mm 8 x 3.3 — — 61105 61165 — 66257 — — — — — — — — —
26mm 8 x 3.3 — — — — — — — — — — — — — — —
28mm 8 x 3.3 — — 61106 61111 — 62049 — — — — — — — — —
D
30mm 8 x 3.3 — — 68739 61112 — 62050 — 72031 — — — — — — —
32mm 10 x 3.3 — — — 65320 — 62051 — 66897 — — — — — — —
34mm 10 x 3.3 — — — — — 67238 — — — — — — — — —
T
35mm 10 x 3.3 — — — 67223 — 62052 — 72032 — 72040 — 69563 — — —
38mm 10 x 3.3 — — — 61113 — 62053 — 68037 — 71385 — 70240 — — —
40mm 12 x 3.3 — — — — 69493 66824 70922 69280 — 70056 — 69293 — — —
SP
SP
42mm 12 x 3.3 — — — — 60906 69800 62054 72033 — 72041 — 70376 — — —
45mm 14 x 3.8 — — — — 66765 — 62055 69326 — — — 68074 — — —
48mm 14 x 3.8 — — — — — — 62056 72034 71933 — — 70344 — — —
UJ
UJ
50mm 14 x 3.8 — — — — — — 62057 72035 66826 72043 — 69481 — 64121 —
55mm 16 x 4.3 — — — — — — 62058 — 72036 72044 67513 71739 — 72051 —
60mm 18 x 4.4 — — — — — — — — 69787 — 69219 68170 — 64744 —
VSD
VSD
65mm 18 x 4.4 — — — — — — — — — — 66195 72050 67335 72052 —
70mm 20 x 4.9 — — — — — — — — — — 72047 — 70231 65816 —
75mm 20 x 4.9 — — — — — — — — — — — — — 72058 —
RR
RR
SLD
n When referencing a Lovejoy UPC number in this table, include 685144 as a prefix to the number shown.
ED
ED
1-630-852-0500 59 CJ- 11
HD
HD
Curved Jaw
CJ Series Aluminum / Steel BX
Item Selection
The Curved Jaw coupling consists of two standard hubs and one spider.
JW
JW
JIS
Aluminum
Keyway 14 19/24 24/32 28/38 38/45 42/55 48/60
Size Size B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub
CJ
CJ
RSB* No Keyway 71577 71441 71442 71443 71444 71445 71446 71447 71448 71449 71450 71451 71452
6mm 2x1 71942 — — — — — — — — — — — —
8mm 2x1 71943 — — — — — — — — — — — —
9mm 3 x 1.4 71944 — — — — — — — — — — — —
SFE
SFE
MC
HP
GD
SP
n When referencing a Lovejoy UPC number in this table, include 685144 as a prefix to the number shown.
UJ
UJ
VSD
RR
SLD
ED
Note: n When referencing a Lovejoy UPC number in this table, include 685144 as a prefix to the number shown.
CJ- 12 60 www.lovejoy-inc.com
HD
HD
Curved Jaw
CJ Series
Displacement / Misalignment
JW
JW
JIS
JIS
CJ
CJ
SFE
SFE
CJ Series Installation and Misalignment Capabilities
MC
MC
Size: 14 19 24 28 38 42 48 55 65 75 90 100 110 125 140 160 180
Dimensions
G 0.51 0.63 0.70 0.79 0.94 1.02 1.10 1.18 1.38 1.57 1.77 1.97 2.17 2.36 2.56 2.95 3.35
CL 0.06 0.08 0.08 0.1 0.12 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.35 0.41
G
H 0.39 0.71 1.06 1.18 1.50 1.81 2.01 2.36 2.68 3.15 3.94 4.45 5.00 5.79 6.50 7.48 8.66
S — 1.02 1.18 1.34 1.57 1.81 1.97 2.20 2.48 2.83 3.27 3.62 4.06 4.57 5.00 5.71 6.42
HP
HP
GD
GD
D
D
T
T
Axial Displacement Radial Displacement Angular Displacement
SP
SP
CJ Series Displacement For Displacement / Misalignment (inches)
Size: 14 19 24 28 38 42 48 55 65 75 90 100 110 125 140 160 180
UJ
UJ
Max Axial Displacemnet (∆Ka) 0.04 0.047 0.055 0.06 0.07 0.079 0.082 0.87 0.102 0.12 0.133 0.15 0.165 0.18 0.19 0.22 0.25
Max Radial Displacement (∆Kr) 0.007 0.008 0.009 0.01 0.011 0.012 0.014 0.014 0.016 0.018 0.019 0.02 0.021 0.024 0.024 0.025 0.027
Kw Max angular
VSD
VSD
displacement 1.2 1.2 0.9 0.9 1.0 1.0 1.1 1.1 1.2 1.2 1.2 1.2 1.3 1.3 1.2 1.2 1.2
n=1500 [1/min] in deg (∆Kw)
Angular Displacement 0.03 0.03 0.04 0.05 0.07 0.07 0.08 0.09 0.11 0.13 0.17 0.19 0.22 0.25 0.26 0.3 0.35
Set Screw Information
RR
RR
Set Screw Size (T)* (in) 8-32 10-24 10-24 5/16-18 5/16-18 5/16-18 5/16-18 3/8-16 3/8-16 3/8-16 3/8-16 1/2-13 5/8-11 5/8-11 — — —
Set Screw Location (SL) 5mm 10mm 10mm 15mm 15mm 20mm 20mm 20mm 20mm 25mm 30mm 30mm 35mm 40mm — — —
Note: n *indicates: Set screw size can vary with bore/keyway.
SLD
SLD
The values regarding displacement are provided assuming normal operating conditions (i.e. temperature, torque with nominal rating of the
coupling, speed/RPM rating of the coupling, and misalignment). Careful installation (i.e. alignment) and periodic inspection should be provided
to provide the optimum life of the coupling. Special consideration should be given as to the position of the shafts and the amount of axial
movement the coupling will be exposed to. The more accurate the alignment of the coupling, will result in greater life of the elastomer. A coupling
ED
ED
guard and rotating equipment safety procedures should always be followed. Please consult the Lovejoy web site at www.lovejoy-inc.com for
assembly instructions of the curved jaw coupling.
1-630-852-0500 61 CJ- 13
HD
HD
Curved Jaw
CJ Series CJDB and CJSB
Dimensional Data
The Curved Jaw Double Bolt (CJDB) coupling consists of two shaft hubs, two Jaw rings and one spider.
JW
JW
The Curved Jaw Single Bolt (CJSB) coupling consists of one shaft hub, one Jaw ring, one standard hub and one spider.
Features
JIS
JIS
■■Both curved jaw double bolt (CJDB) and single bolt (CJSB)
■■Flange is available in steel only
CJ
CJ
SFE
SFE
MC
HP
28 4.33 3.94 1.38 1.40 S S 1.10 28 0.47 12 1.50 38 0.10 0.60 0.79
38 5.28 4.88 1.77 1.79 S S 1.50 38 0.47 12 1.77 45 0.12 0.71 0.94
42 5.91 5.43 1.97 2.01 S S 1.65 42 0.47 12 2.17 55 0.12 0.79 1.02
48
GD
GD
6.46 5.98 2.20 2.24 S S 1.89 48 0.47 12 2.36 60 0.10 0.83 1.10
55 7.56 6.93 2.56 2.60 S S 2.17 55 0.47 12 2.76 70 0.16 0.87 1.18
65 8.54 7.91 2.95 2.99 S S 2.56 65 0.47 12 2.95 75 0.18 1.02 1.38
75 9.76 9.02 3.35 3.41 S S 2.95 75 0.47 12 3.54 90 0.20 1.18 1.57
90 15.16 10.43 3.94 4.00 S S 3.94 100 0.47 12 3.94 100 0.22 1.34 1.77
D
100 12.60 11.61 4.33 4.39 S S 4.33 110 1.58 40 4.33 110 0.24 1.50 1.97
110 13.66 12.64 4.72 4.80 S S 4.92 125 2.36 60 4.92 125 0.26 1.65 2.17
125 15.75 14.57 5.51 5.59 S S 5.71 145 2.36 60 5.71 145 0.28 1.81 2.36
140 17.44 16.10 6.10 6.20 S S 6.50 165 2.01 51 6.30 160 0.30 1.97 2.56
T
160 19.72 18.23 6.89 6.99 S S 7.48 190 2.01 51 7.28 185 0.35 2.24 2.95
180 21.85 20.28 7.68 7.80 S S 8.66 220 2.01 51 7.87 200 0.41 2.56 3.35
Note: n S = Solid hub with no bore.
SP
SP
UJ
VSD
RR
SLD
90 3.35 2.56 7.87 3.94 5.59 6.30 6.77 M16 x 50 15 2,611 295
100 3.82 2.95 8.86 4.45 6.22 — 7.68 M20 x 50 15 2,611 295
110 4.06 3.19 10.04 5.00 7.01 — 8.58 M20 x 60 15 20 x 18° 5,133 580
125 4.57 3.54 11.42 5.79 8.11 — 9.92 M20 x 60 15 5,133 580
140 5.04 3.90 12.60 6.50 9.25 10.04 11.10 M20 x 60 15 5,133 580
ED
ED
160 5.75 4.45 14.57 7.48 10.63 11.42 12.80 M24 x 70 15 8,850 1 000
180 6.26 4.92 16.54 8.66 12.40 12.80 14.76 M24 x 80 18 24 x 15° 8,850 1 000
CJ- 14 62 www.lovejoy-inc.com
HD
HD
Curved Jaw
CJLFH, CJDLF, CJSFH, and CJDSF
Dimensional Data
The Curved Jaw Large Flange to Hub (CJLFH) coupling consists of one standard hub, one large flange and one spider.
JW
JW
The Curved Jaw Double Large Flange (CJDLF) coupling consists of two large flanges and one spider.
The Curved Jaw Small Flange to Hub (CJSFH) coupling consists of one standard hub, one Jaw ring and one spider.
The Curved Jaw Double Small Flange (CJDSF) coupling consists of two Jaw rings and one spider.
JIS
JIS
Features
■■Flange to Flange design available for applications requiring space saving, compact connections
CJ
CJ
■■Shaft to Flange design is also available for special application situations requiring an alternative connection
SFE
SFE
MC
MC
CJDSF Design
CJLFH Design CJDLF Design CJSFH Design
G
CJ Series CJLFH, CJDLF, CJSFH and CJDSF Dimensional Data
HP
HP
ID1 OD H LTB G CL W PD F
Standard Hub General Dimensions
Min Bore Max Bore
Size in mm in mm in in in in in in in in
GD
GD
24 0.472 12 1.102 28 2.17 1.06 1.18 0.71 0.08 0.55 0.06 0.31
28 0.472 12 1.496 38 2.56 1.18 1.38 0.79 0.01 0.59 0.06 0.39
38 0.472 12 1.772 45 3.15 1.50 1.77 0.94 0.12 0.71 0.06 0.39
42 0.472 12 2.165 55 3.74 1.81 1.97 1.02 0.12 0.79 0.08 0.47
48 0.472 12 2.362 60 4.13 2.01 2.20 1.10 0.14 0.83 0.08 0.47
D
55 0.472 12 2.756 70 4.72 2.36 2.56 1.18 0.16 0.87 0.08 0.63
65 0.472 12 2.953 75 5.31 2.68 2.95 1.38 0.18 1.02 0.08 0.63
75 0.472 12 3.543 90 6.30 3.15 3.35 1.57 0.20 1.18 0.10 0.75
90 0.472 12 3.937 100 7.87 3.94 3.94 1.77 0.22 1.34 0.12 0.79
100 1.575 40 4.331 110 8.86 4.45 4.33 1.97 0.24 1.50 0.16 0.98
T
110 2.362 60 4.921 125 10.04 5.00 4.72 2.17 0.26 1.65 0.16 1.02
125 2.362 60 5.709 145 11.42 5.79 5.51 2.36 0.28 1.81 0.20 1.18
140 2.008 51 6.299 160 12.60 6.50 6.10 2.56 0.30 1.97 0.20 1.34
160 2.008 51 7.283 185 14.57 7.48 6.89 2.95 0.35 2.24 0.20 1.50
SP
SP
180 2.008 51 7.874 200 16.54 8.66 7.68 3.35 0.41 2.52 0.22 1.57
UJ
CJLFH and CJDLF CJSFH and CJDSF
FD P BC OAL P BC BH OAL
# of BH to # of Pitch
Bolts DIN 69 CJLFH CJDLF Bolts Zxa CJSFH CJDSF
VSD
VSD
Size in in in in in in in in in in
24 3.15 2.17 2.56 5 0.22 2.20 1.34 1.42 1.77 M5 8 2.20 1.34
28 3.94 2.56 3.15 6 0.26 2.56 1.57 1.73 2.13 M6 8 8 x 45° 2.56 1.57
38 4.53 3.15 3.74 6 0.26 3.11 1.73 2.13 2.60 M8 8 3.11 1.73
RR
RR
42 5.51 3.74 4.53 6 0.35 3.46 1.97 2.56 3.15 M8 12 3.46 1.97
16 x 22.5°
48 5.91 4.13 4.92 8 0.35 3.78 2.05 2.95 3.54 M8 12 3.78 2.05
55 6.89 4.72 5.71 8 0.43 4.37 2.44 3.31 4.02 M10 8 8 x 45° 4.37 2.44
65 7.48 5.31 6.30 10 0.43 4.96 2.64 3.78 4.57 M10 12 16 x 22.5° 4.96 2.64
75
SLD
SLD
8.46 6.30 7.28 10 0.53 5.67 3.07 4.41 5.35 M12 15 5.67 3.07
90 10.24 7.87 8.86 12 0.69 6.50 3.35 5.71 6.77 M16 15 6.50 3.35
100 11.22 8.86 9.84 12 0.69 7.28 3.94 6.50 7.68 M16 15 7.28 3.94
110 12.99 10.04 11.42 12 0.87 7.91 4.21 7.09 8.58 M20 15 20 x 18° 7.91 4.21
125 14.57 11.42 12.80 16 0.87 9.06 4.72 8.46 9.92 M20 15 9.06 4.72
ED
ED
140 16.14 12.60 14.17 16 0.87 10.00 5.24 9.65 11.10 M20 15 10.00 5.24
160 18.11 14.57 16.14 16 1.02 11.34 5.94 11.02 12.80 M24 15 11.34 5.94
180 20.47 16.54 18.31 16 1.02 12.60 6.50 12.99 14.76 M24 18 24 x 15° 12.60 6.50
1-630-852-0500 63 CJ- 15
HD
HD
Curved Jaw
CJSPC and CJDSPC
Dimensional Data
The Curved Spacer (CJSPC) coupling consists of two standard hubs,
JW
JW
JIS
Features
■■Hubs available in aluminum, sintered iron, cast iron, and steel CJSPC Design
CJ
CJ
SFE
MC
CJDSPC Design
G
HP
GD
24 4.41 BSE+2.36 0.472 12 1.10 28 1.18 1.06 0.71 0.63 2.05 2.17 1.57 0.31 2.05
28 5.04 BSE+2.76 0.472 12 1.50 38 1.38 1.18 0.79 0.71 2.28 2.56 1.89 0.39 2.36
38 6.22 BSE+3.54 0.472 12 1.77 45 1.77 1.50 0.94 0.79 2.68 3.15 2.60 0.39 2.68
D
42 6.85 BSE+3.94 0.472 12 2.17 55 1.97 1.81 1.02 0.87 2.91 3.74 2.95 0.47 2.99
48 7.56 BSE+4.41 0.472 12 2.36 60 2.20 2.40 1.10 0.94 3.15 4.13 3.35 0.47 3.15
55 8.58 BSE+5.12 0.472 12 2.76 70 2.56 2.36 1.18 1.10 3.46 4.72 3.86 0.63 3.62
65 9.92 BSE+5.91 0.472 12 2.95 75 2.95 2.68 1.38 1.26 4.02 5.31 4.53 0.63 4.02
T
75 11.26 BSE+6.69 0.472 12 3.54 90 3.35 3.15 1.57 1.42 4.57 6.30 5.31 0.75 4.65
90 12.99 BSE+7.87 0.472 12 3.94 100 3.94 3.94 1.77 1.57 5.12 7.87 6.30 0.79 5.12
SP
SP
UJ
VSD
RR
SLD
ED
CJ- 16 64 www.lovejoy-inc.com
HD
HD
Curved Jaw
Taper Lock
Dimensional Data
JW
JW
JIS
JIS
CJ
CJ
SFE
SFE
Reverse Mount Front Mount
MC
MC
Fixing screw for taper bushing
Taper Diameter Length # of Tightening Torque
Clamping OAL N H LTB CL W G OD HD Screws
G
Size Bushing in in in in in in in in in in in in-lbs Nm
28 1108 2.60 — 1.18 0.91 0.01 0.59 0.79 2.56 2.56 0.25 1/2 2 50 6
38 1108 2.76 0.59 1.50 0.91 0.12 0.71 0.94 3.15 3.07 0.25 1/2 2 50 6
HP
HP
42 1610 3.07 0.63 1.81 1.02 0.12 0.79 1.02 3.74 3.70 0.38 5/8 2 177 20
48 1615 4.17 1.10 2.01 1.54 0.14 0.83 1.10 0.59 4.09 0.38 5/8 2 177 20
55 2012 3.78 0.79 2.36 1.30 0.16 0.87 1.18 4.72 4.65 0.44 7/8 2 274 31
GD
GD
2517 0.50 1 434 49
75 5.67 1.42 3.15 2.05 0.20 1.18 1.57 6.30 5.31 2
3020 0.63 1-1/4 814 92
D
Taper Bushing Bore Reference Chart (Taper Loc Bushings Not Provided by Lovejoy)
Size of
T
Taper
Bushes Available Bore Sizes (inches)
1108 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 — — — — — — —
SP
SP
1610 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16 1-3/8 1-7/16
1615 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16 1-3/8 1-7/16
2012 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16 1-3/8 1-7/16
UJ
UJ
2517 1/2 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16 1-3/8 1-7/16 1-1/2
3020 7/8 1-3/16 1 1-1/8 1-3/16 1-1/4 1-5/16 1-5/8 1-7/16 1-1/2 1-9/16 1-5/8 1-11/16 1-3/4 1-13/16 1-7/8
VSD
VSD
Taper Bushing Bore Reference Chart (Taper Loc Bushings Not Provided by Lovejoy) Continued
Size of
RR
RR
Taper
Bushes Available Bore Sizes (inches)
1108 — — — — — — — — — — — — — — —
1610
SLD
SLD
1-1/2 — — — — — — — — — — — — — —
1615 1-1/2 — — — — — — — — — — — — — —
2012 1-1/2 1-9/16 1-5/8 1-11/16 1-3/4 1-13/16 1-7/8 — — — — — — — —
2517 1-9/16 1-5/8 1-11/16 1-3/4 1-13/16 1-7/8 1-15/16 2 2-1/16 2-1/8 2-3/16 2-1/4 2-5/8 2-3/8 —
ED
ED
3020 1-15/16 2 2-1/16 2-1/8 2-3/16 2-1/4 2-15/16 2-3/8 2-7/16 2-1/2 2-5/8 2-11/16 2-3/4 2-13/16 2-7/8
1-630-852-0500 65 CJ- 17
HD
HD
Curved Jaw
GS Series
Overview / Performance
The GS Series Curved Jaw coupling offers zero backlash capability in a 3-piece design. The
JW
JW
coupling is provided assembled under prestress. The GS Series can be used in a variety of different
applications requiring precision and accuracy.
The GS Series spider features a straight center of the spider tooth, providing higher stiffness due to
JIS
JIS
coupling prestress. The crowning of the ends of the spider legs allows for misalignment, while the
curved jaws and solid spider center provide high-speed capability.
The jaws of the hubs and the spider legs are chamfered to provide easy assembly. The GS Series
CJ
CJ
coupling design also allows the blind assembly in tight spaces. Raised spider dots on the legs of
the spider ensure proper spacing of hubs and spider.
The GS Series coupling has spiders available in four different shore hardnesses. Each spider offers
SFE
SFE
The GS Curved Jaw coupling consists of two hubs and one spider.
MC
MC
Features
■■Simple 3 piece jaw design
■■Aluminum and steel material hubs
G
HP
GD
GD
D
D
T
SP
UJ
80 Shore A GS Blue Urethane -50° to 176° F -80° to 248° F 14-24 Electric measuring systems
92 Shore A GS
VSD
VSD
Yellow Urethane -40° to 194° F -50° to 248° F 14-55 Electric measuring systems and control systems
95/98 Shore A GS Red Urethane -30° to 194° F -40° to 248° F 14-55 Positioning drives, main spindle drives, high load applications
64 Shore D GS Green Urethane -20° to 230° F -30° to 248° F 14-55 High load applications torsionally stiff spider material
RR
RR
SLD
SLD
ED
ED
CJ- 18 66 www.lovejoy-inc.com
HD
HD
Curved Jaw
GS Series
Dimensional Data
JW
JW
JIS
JIS
CJ
CJ
SFE
SFE
Clamping Type Set Screw Type
MC
MC
GS Series Dimensional Data
OAL LTB ID1 - ID2 OD
Min Bore Max Bore** Set Screw /
G
Clamp Screw Size
Size Material in mm in mm in mm in mm in mm mm
14 Aluminum 1.378 35 0.433 11 0.197 5 0.625* 16* 1.181 30 M3
HP
HP
19/24 Aluminum 2.598 66 0.984 25 0.315 8 0.945 24 1.575 40 M2.6
24/32 Aluminum 3.071 78 1.181 30 0.472 12 1.260 32 2.165 55 M4
28/38 Aluminum 3.543 90 1.378 35 0.709 18 1.496 38 2.559 65 M2.6
GD
GD
38/45 Aluminum 4.488 114 1.772 45 0.709 18 1.772 45 3.150 80 M5
42/55 Steel 4.961 126 1.969 50 0.709 18 2.165 55 3.740 95 M3
48/60 Steel 5.512 140 2.205 56 0.709 18 2.362 60 4.134 105 M6
D
55/70 Steel 6.299 160 2.559 65 1.024 26 2.756 70 4.724 120 M4
Notes: n *indicates: Without keyway.
n ** indicates: Consult with Lovejoy Engineering for proper sizing of clamp and double split clamp hubs.
T
n S pecify keyway size if needed when ordering.
n Specify bore sizes ID1 and ID2 when ordering.
SP
SP
GS Series Dimensional Data Continued
SL1 SL T TH CL G
Clamp Screw Size Set Screw Size
UJ
UJ
Size Material in mm in in in mm in mm in mm
14 Aluminum 0.20 M3 0.20 8-32 0.059 1.5 0.039 1.0 0.512 13
VSD
VSD
19/24 Aluminum 0.47 M2.6 0.39 10-24 0.079 2.0 0.079 2.0 0.630 16
24/32 Aluminum 0.55 M4 0.39 10-24 0.079 2.0 0.079 2.0 0.709 18
28/38 Aluminum 0.59 M2.6 0.59 5/16-18 0.098 2.5 0.098 2.5 0.787 20
38/45 Aluminum 0.79 M5 0.59 5/16-8 0.118 3.0 0.118 3.0 0.945 24
RR
RR
42/55 Steel 0.79 M3 0.79 5/16-8 0.118 3.0 0.118 3.0 1.024 26
48/60 Steel 0.87 M6 0.79 5/16-8 0.138 3.5 0.138 3.5 1.102 28
SLD
SLD
55/70 Steel 0.98 M4 0.79 3/8-16 0.157 4.0 0.157 4.0 1.181 30
ED
ED
1-630-852-0500 67 CJ- 19
HD
HD
Curved Jaw
GS Series
Selection Process
Typical Applications
JW
JW
JIS
minimal) backlash.
CJ
The GS Series provides a zero backlash, flexible connection for servo and positioning drives. An added benefit of the GS Series is its
damping capabilities. For applications that have vibrations at critical speeds, the GS Series coupling can provide a zero backlash solution
for vibration problems.
SFE
SFE
MC
GD
Calculation Formula
D
RPM
SP
UJ
Check the nominal torque for the application against the rating for the coupling:
VSD
Peak Torque
Shock load (driver side) = Peak torque (driver) x rotational inertia coefficient (driver) x K5
RR
RR
Shock load (driven side) = Peak torque (driven) x rotational inertia coefficient (driven) x K5
Check the peak torque for the application against the rating for the coupling (page CJ-20), checking both driver and driven sides:
SLD
SLD
ED
CJ- 20 68 www.lovejoy-inc.com
HD
HD
Curved Jaw
GS Series Performance / Torque Ratings
Performance Data
GS Series Performance Data
JW
JW
Spider Maximum Speed for Clamping Styles Torque Static Dynamic Radial Complete Coupling
Durometer Clamping Set Screw Locking Device Tkn Tkmax Torsional Torsional Stiffness Max Bore w/o Keyway
Hub Hub Hub Stiffness Stiffness Weight Polar Moment of
JIS
JIS
Inertia J
Size RPM RPM RPM in-lbs in-lbs [in-lb /rad] [in-lb /rad] [in-lb /rad] lbs [in-lb /rad]
80 Sh A 35.4 70.8 532.8 1,593 874
92 Sh A 66.4 132.8 1,014.0 3,044 1,920
14 12,700 15,900 25,400 0.098 57
CJ
CJ
98 Sh A 110.6 221.3 1,521.0 4,540 3,452
64 Sh D 141.6 283.2 2,072.0 6,212 4,892
80 Sh A 43.4 86.7 3,042.0 6,115 3,326
92 Sh A 88.5 177.0 5,071.0 15,222 6,401
SFE
SFE
19/24 9,550 11,900 19,000 0.306 374
98 Sh A 150.5 300.9 7,606.0 22,833 11,487
64 Sh D 185.9 371.7 70,976.0 32,922 16,745
92 Sh A 309.8 619.5 12,673.0 38,019 8,458
24/32 98 Sh A 6,950 8,850 13,800 531.0 1,062.0 18,257.0 54,772 14,630 0.621 965
MC
MC
64 Sh D 663.8 1,327.0 26,355.0 79,065 21,123
92 Sh A 840.8 1,681.0 20,284.0 60,852 10,173
28/38 98 Sh A 5,850 7,350 11,700 1,416.0 2,832.0 30,426.0 91,278 18,288 1.178 3,691
64 Sh D 1,770.0 3,540.0 38,497.0 115,492 24,849
G
92 Sh A 1,681.0 3,363.0 40,568.0 121,705 12,430
38/45 98 Sh A 4,750 5,950 9,550 2,876.0 5,752.0 63,366.0 190,151 25,146 2.112 7,485
64 Sh D 3,584.0 7,168.0 93,279.0 279,837 36,999
92 Sh A 2,345.0 4,690.0 55,755.0 128,236 13,887
HP
HP
42/55 98 Sh A 4,000 5,000 8,050 3,982.0 7,965.0 169,920.0 424,800 31,833 8.324 40,639
64 Sh D 4,956.0 9,912.0 244,083.0 610,207 41,548
92 Sh A 2,743.0 5,487.0 69,472.0 159,786 14,745
48/60 98 Sh A 3,600 4,550 7,200 4,646.0 9,292.0 197,974.0 494,936 33,890 11.317 68,782
GD
GD
64 Sh D 5,798.0 11,593.0 320,370.0 800,925 47,286
92 Sh A 3,628.0 7,257.0 84,075.0 193,372 17,031
55/70 98 Sh A 3,150 3,950 6,350 6,062.0 12,124.0 210,630.0 52,675 38,210 16.993 135,334
64 Sh D 7,301.0 14,602.0 366,921.0 917,302 52,852
D
Torque Ratings for Clamp Style GS Series Hubs (C and DSC)
T
5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 7/8 15/16 1 1-3/32
Size in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs
19 221 239 239 257 266 274 283 283 310 — — —
SP
SP
24 — 301 310 319 336 345 345 345 363 381 398 407
28 — — — 708 717 717 743 752 770 805 814 859
38 — — — — 814 832 859 867 876 920 929 965
UJ
UJ
42 — — — — — — — — 2,053 2,159 2,177 2,257
48 — — — — — — — — — — 3,478 3,584
55 — — — — — — — — — — — —
VSD
VSD
Torque Ratings for Clamp Style GS Series Hubs (C and DSC) Continued
1-3/16 1-1/4 1-3/8 1-1/2 1-9/16 1-5/8 1-3/4 1-7/8 1-15/16 2-1/8 2-5/16 2-1/2
RR
RR
Size in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs in-lbs
19 — — — — — — — — — — — —
24 — — — — — — — — — — — —
SLD
SLD
ED
48 3,655 3,726 3,841 3,938 4,018 4,089 4,186 4,301 4,372 4,549 — —
55 — 4,186 4,301 4,407 4,487 4,549 4,655 4,770 4,841 5,018 5,195 5,381
1-630-852-0500 69 CJ- 21
HD
HD
Curved Jaw
GS Series Hubs
Selection Data
JW
The GS Series coupling features different hub designs for different application situations. Each type offers specific benefits for different types of
applications. The clamping styles offer the benefit of minimal to zero backlash.
JIS
JIS
CJ
SFE
MC
G
HP
GD
SP
UJ
VSD
RR
SLD
ED
CJ- 22 70 www.lovejoy-inc.com
HD
HD
Curved Jaw
GS Series Misalignment
Performance Data
JW
JW
The GS Series coupling handles the following types of misalignment: axial, angular, and radial.
The coupling retains its zero backlash properties due to its spider design.
JIS
JIS
Axial Misalignment GS Series Misalignment Data
Axial misalignment can be
CJ
CJ
Misalignment
caused by different shaft
Spider ∆Ka ∆Kr ∆Kw
tolerances or by thermal
expansion of shafts. The GS Size Shore Axial (in) Radial (in) Angular
SFE
SFE
Series coupling handles axial 80 0.008 1.1°
misalignment while keeping 92 +0.039 0.006 1.0°
reactionary forces low. 14
98 -0.019 0.003 0.9°
64 0.002 0.8°
MC
MC
80 0.006 1.1°
Radial Misalignment 92 +0.047 0.004 1.0°
19
98 -0.019 0.002 0.9°
Radial misalignment can be
G
defined as a measure of the offset 64 0.001 0.8°
distance between the centerlines 92 0.005 1.0°
of the driving and driven shafts. 24 98
+0.055
0.004 0.9°
This type of misalignment, due -0.019
HP
HP
64 0.003 0.8°
to the forces involved, causes the
highest stress. 92 0.006 1.0°
+0.059
28 98 0.004 0.9°
-0.027
GD
GD
64 0.003 0.8°
92 0.007 1.0°
+0.070
38 98 0.005 0.9°
Angular Misalignment -0.027
64 0.003 0.8°
D
Angular misalignment can be 92 0.007 1.0°
defined as a measure of the +0.078
42 98 0.005 0.9°
angle between the centerlines -0.039
of the driving and driven shafts, 64 0.004 0.8°
T
where those centerlines would 92 0.009 1.0°
intersect approximately halfway +0.082
48 98 0.006 0.9°
-0.039
between shaft ends. The GS 64 0.004 0.8°
SP
SP
Series coupling can handle
92 0.009 1.0°
a specific amount of angular +0.086
misalignment for each given size 55 98 0.007 0.9°
-0.039
(refer to chart on right). 64 0.005 0.8°
UJ
UJ
VSD
VSD
RR
RR
SLD
SLD
ED
ED
1-630-852-0500 71 CJ- 23
HD
HD