NMTG model NHB is Installed at Input Shaft of Gearbox in Drive System to Prevent Reverse Rotation. NHB model is used in High Speed Application.
About NHB:
• In one direction of rotation there is no contact between the inner and outer ring, freewheel is in freewheeling operation.
• In the other direction of rotation there is contact between the inner and outer ring; in this direction it is possible to transmit high torque.
Function of NHB:
• Main two function of NHB are as follows:
1. Backstopping/Holdback
2. Overrunning.
1) As a Backstopping/Holdback:
Backstop function prevent reverse rotation when input drive is discontinue or power supply failure to input drive. Backstop clutch use to prevent damage caused by power supply failure.
2) As a Overrunning:
When drive member rotates faster than driving member, clutch gets disengage automatically. The highest overrunning speed is possible if outer race overruns. This ensures the best performance, reduce heat generation & wear which lead to increase life.
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