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Features
  • High torque transmission
  • Low drag overrunning
  • Overload protection
Applications
  • Automatic flywheel decoupling
  • Unidirectional stepping
  • Backstopping
Federal supply code - 15531
Spring Wrapped Overrunning Clutch – UNH Series
Spring Wrapped Overrunning Clutch – UNH Series - Dimensions
Unit of Measure
1 

Model No.

Transmission Torque (lb·in)

Max. Overrunning Torque (oz·in)

A (in)

B (in)

C + .0010 (in)

D - .001 (in)

UNH-18 N/A 50 N/A 3 N/A 1.07 N/A .9400 N/A .1875 N/A .5620
UNH-25 N/A 50 N/A 3 N/A 1.07 N/A .9400 N/A .5620 N/A .5620
UNH-31 N/A 50 N/A 3 N/A 1.07 N/A .9400 N/A .3125 N/A .5620
UNH-37 N/A 125 N/A 5 N/A 1.32 N/A 1.50 N/A .3750 N/A 1.00
UNH-50 N/A 125 N/A 5 N/A 1.32 N/A 1.50 N/A .5000 N/A 1.00
UNH-62 N/A 125 N/A 5 N/A 1.32 N/A 1.50 N/A .6250 N/A 1.00
Unit of Measure
1