The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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

Specifications

Description 

 N/A JR4B-UJ-3/8X3/8-NKW NSS BE

Type

 N/A Universal Joints - JR Type

Material

 N/A Zytel®

Weight

 N/A 0.10 lb

Style

 N/A Bored

Color

 N/A Black

Bore Type

 N/A Finished Bore

Dimensional Data

Bore Size   

 N/A 3/8 x 3/8 in

Coupling

 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

Notes

Notes 

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