Patent ID: 7083538

Claim:
An electromechanical actuator for engaging a shaft in a power transmission device, the electromechanical actuator comprising: a fixedly mounted housing including an inner surface having a cammed profile directed radially inward toward the shaft; a plurality of roller elements located within the housing on the cammed profile, each roller contacting an adjacent roller; a split ring located around the shaft and within the housing, including a radially outer surface facing the cammed profile, a radially inner surface facing the shaft, and a split extending radially between the inner surface and outer surface; an engaging device, for urging the split ring at a location of the split radially inward into engagement against the shaft, forcing two adjacent roller elements angularly apart, and moving the roller elements along the cammed profile radially inward into engagement with the outer surface of the split ring while remaining engaged with the cammed profile.