These are typically bearing mounted toothed clutches, which can be used in a variety of industrial, agricultural or marine applications.
This tailor-made clutch is mounted on the driving shaft of a boat and transmits torque to the pulley when it is energized. In this way it transmits power to auxiliary services. The distinctive feature of this clutch is the high torque transmit through a small diameter pulley: This has required a compact design of the hub.
The pulley is supported by five ball bearings in order to sustain the high loads of belts.