Bi-directional clutch
TWIFLEX

A set of weighted lined shoes are carried by flexible cylindrical blocks in a central hub, permitting appreciable deflection under load, thereby imparting the low torsional stiffness characteristic which is an important feature of this design.
Compression springs disposed radially under each shoe provide adjustable restraint to give control of the engaging speed (at which the shoes move into contact with the drum).
FlexiClutch Specification
The drive units are dimensionally interchangeable with the link designs and use the same shaft hubs, drums and adapter flanges.
These clutches are truly bi-directional, having an equal slip torque characteristic in either direction of rotation.
Benefits
The FlexiClutch therefore combines the functions of an automatic clutch and a highly flexible coupling in a single assembly with considerable space and cost savings compared with the use of two seperate units.
Alternative hardness blocks are available to provide even lower stiffness values where needed, with an appropriate adjustment in nominal torque rating.

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