Cam Clutch

Reliable unidirectional clutch solutions with sprag clutches and cam clutches, designed for maximum holdback efficiency…

Backstopping function prevents reverse rotation when input drive is discontinued or power supply failure to input drive. The freewheel clutch continues overrunning / freewheeling when the equipment is in operation or working mode and it engages if reverse rotation occurs unexpectedly. Backstop/Holdback is used to prevent the shaft from rotating in the opposite direction.

This function simply achieved by anchoring one race of the clutch so that the other race is free to rotate in one (required) direction but is immediately locked in reverse direction. Normally, outer race or outer race flange or torque arm of the clutch is fixed to the stationary part — equipment frame and inner race fitted on to the drive shaft- rotating freely.

Cam Clutch

The Basic Principle of Freewheel One-way clutch is based on wedge friction theory. Free wheel one way clutch is mechanical device having special characteristics:

  • In one direction of rotation there is no engagement between the inner and outer race; continues overrunning operation.
  • In the other direction of rotation there is contact between the inner race and outer race: able to transmit torque.

NMTG Freewheel One-way clutches are designed to transmit torque in one direction, and overrunning (Freewheeling) in opposite direction. As the contacts between wedging elements (Roller, Sprag, CLS Cam, NDC Sprag, etc.) with Inner race & Outer race, these generates clamping forces. NMTG all Freewheel One-way clutches design utilize the same principles of operation. The three most common type of function/applications are listed below.



https://nmtgindia.com/freewheel-one-way-clutch-holdback-devices

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