Torque limiting portion: high-strength. hardened steel with rust protection (nitro-carburized)
a. Clamping hub D1: up to size 450, high strength alumunium; size 800 and up, steel
b. Clamping hub D2: up to size 60, high strength alumunium; size 150 and up, steel
Design:
Two coupling hubs concentrically machined with concave driving jaws. One side wtih an integrated torque limiter. Available in single-position, multi-position, load holding, and full disengagement versions.