Wrap spring activated torque transfer device

摘要: A wrap spring activated torque coupling is applied to a transmission and/or locking differential for motor vehicle. The wrap-spring allows quick engagement and disengagement of an input member associated output at large torsional capacities that exceed the limit what taught by prior art. ability quickly lock unlock vehicle under either torsionally loaded or unloaded condition realized this application coupling. Moreover, two piece bi-directional hub design utilized simple turning broaching operations use in its manufacture, thereby eliminating conventional deep annular counterbore would require much more expensive machining processes.