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    A complete CJ Series coupling is comprised of two standard CJ hubs and one CJ spider. Four types of spiders are available for the CJ Series.
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Steel Curved Jaw Coupling Hubs, CJ Series - Imperial

CJ Series Hubs - Steel, B & BX Style, Inch (Imperial) Bores
Steel Curved Jaw Coupling Hubs, CJ Series - Imperial

CJ Series Hubs - Steel, B & BX Style, Inch (Imperial) Bores
Steel Curved Jaw Coupling Hubs, CJ Series - Imperial

CJ Series Hubs - Steel, B & BX Style, Inch (Imperial) Bores
Description  N/A CJ28/38B-HUB-STL-1/2-1/8X1/16KW N/A CJ28/38B-HUB-STL-5/8-3/16X3/32KIW N/A CJ55/70BX-HUB-STL-2"-1/2X1/4KW
Bore Size  N/A 1/2 in N/A 5/8 in N/A 2 in
Hub Style N/A B N/A B N/A BX
Type N/A Curved Jaw Coupling Hubs
Coupling Size N/A 28 N/A 28 N/A 55
Hub Material N/A Steel
Set Screw Style Coupling Size (Dimension T) N/A 5/16-18 N/A 5/16-18 N/A 3/8-16
Keyway Size N/A 1/8 x 1/16 in N/A 3/16 x 3/32 in N/A 1/2 x 1/4 in
Length thru Bore (Dimensions LTB1/LTB2) N/A 1.380 in35.05 mm N/A 1.380 in35.05 mm N/A 3.540 in89.92 mm
Style N/A Bored
Outside Diameter N/A 2.560 in65.02 mm N/A 2.560 in65.02 mm N/A 4.720 in119.89 mm
Overall Coupling Length N/A 3.540 in89.92 mm N/A 3.540 in89.92 mm N/A 4.560 in115.82 mm
Spider Outside Diameter N/A 2.560 in65.00 mm N/A 2.560 in65.00 mm N/A 4.720 in120.00 mm
Spider Inside Diameter N/A 1.180 in29.00 mm N/A 1.180 in29.00 mm N/A 2.360 in60.00 mm
Spider Thickness (Dimension W) N/A 0.590 in15.00 mm N/A 0.590 in15.00 mm N/A 0.870 in22.00 mm
Set Screw Style Coupling Location Size (Dimension SL) N/A 0.590 in14.99 mm N/A 0.590 in14.99 mm N/A 0.790 in20.07 mm
Normal Temperature Range (with 80 Shore A, 92 Shore A, and 95/98 Shore A spiders) N/A -40 to 212 ºF
Max. Temperature Range (with 80 Shore A, 92 Shore A, and 95/98 Shore A spiders) N/A -50 to 248 ºF
Nominal Torque (with 92 Shore A spider) N/A 840.00 in·lb N/A 840.00 in·lb N/A 3625.00 in·lb
Max Torque (with 92 Shore A spider) N/A 1680.00 in·lb N/A 1680.00 in·lb N/A 7250.00 in·lb
Min. Bore (Dimensions ID1/ID2) N/A 0.870 in22.00 mm N/A 0.870 in22.00 mm N/A 0.470 in12 mm
Max. Bore (Dimensions ID1/ID2) N/A 1.5 in38 mm N/A 1.5 in38 mm N/A 2.750 in70.00 mm
Max. Speed N/A 8500.00 rpm N/A 8500.00 rpm N/A 4750 rpm
Dimension G N/A 0.790 in20.07 mm N/A 0.790 in20.07 mm N/A 1.180 in29.97 mm
Dimension HD N/A 2.560 in65.02 mm N/A 2.560 in65.02 mm N/A 4.720 in119.89 mm
Distance between Spider and Hub Face (Dimension CL) N/A 0.100 in2.54 mm N/A 0.100 in2.54 mm N/A 0.160 in4.06 mm
Angular Displacement N/A 0.050 in N/A 0.050 in N/A 0.090 in
Max. Angular Displacement (∆ Ka), n=1500 [1/min] N/A 0.90 º N/A 0.90 º N/A 1.10 º
Max. Axial Displacement (∆ Ka) N/A 0.0600 in N/A 0.0600 in N/A 0.8700 in
Max. Radial Displacement (∆ Kr) N/A 0.0100 in N/A 0.0100 in N/A 0.0140 in
Coupling Type N/A Jaw
Weight N/A 2.27 lb N/A 1.99 lb N/A 8.05 lb
Cubic inches N/A 9.04397 in³ N/A 9.04397 in³ N/A 78.86554 in³