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JR-4 Types
  • Offset pin design ideal for use on hand operated, low torque drives
  • Capable for operating angles up to 45° of angular misalignment
  • Application examples: remote control linkages, snow blowers, packaging machinery, awning devices, etc.
  • The JR-4 is made of tough Zytel® material, so it will not rust and no lubrication needed
  • The JR-4 withstands oils, gasoline, salts, and temperatures from -40° to 225° F
  • The JR-4 is available in .38 inch bore only
Unit of Measure





N/A Universal Joints - JR Type


N/A Zytel®


N/A 0.10 lb


N/A Bored


N/A Black

Bore Type

N/A Finished Bore

Dimensional Data

Bore Size   

N/A 3/8 x 3/8 in


N/A JR-4

Nominal Size

N/A 0.375 in

Set Screw Size

N/A No Setscrew

Keyway Size (W x D)

N/A No Keyway

Outside Diameter

N/A 0.680 in

Overall Length

N/A 3.000 in

Pin Outside Diameter

N/A 1.180 in

Bore Depth (Dimension C)

N/A 0.620 in

Max. Bore (Dimensions ID1/ID2)

N/A 0.380 in

Main Pin Height (Dimension E)

N/A 1.690 in

Dimension F (Standard)

N/A 0.310 in7.87 mm

Cubic inches

N/A 1.38720 in³

Performance Data

Operating Temperature Range

N/A -40 to 225 ºF

Static Breaking Torque

N/A 160.00 in·lb

Max. Speed

N/A 1750.00 rpm

Breaking Strength

N/A 160.00 in-lb

Max. Angular Misalignment

N/A 45.00 º



  • Static Breaking Torque is not a recommended operating torque.
  • Maximum operating angle 45° for hand-operated applications.
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