TRI-STATE OVERRUNNING CLUTCH

摘要

A tri-state overrunning clutch is provided, which comprises an outer race (1), an inner race (2), a plurality of wedges (3) arranged between the outer race (1) and the inner race (2), wherein each wedge (3) has a first end (31) and a second end (32) that are opposite to each other and contact with the corresponding working faces of the outer race (1) and the inner race (2), and a retainer (4) arranged between the outer race (1) and the inner race (2) for retaining the wedges (3). The wedges (3) can rotate between the outer race (1) and the inner race (2) such that the second end (32) may leave from its corresponding working face, and thus the disengaged state of the tri-state overrunning clutch is obtained.