Abstract: To provide a cam clutch that allows use of the outer race as a rotating member without requiring a complex structure, and that allows a size reduction in the axial direction. The cam clutch includes an operating mode switch mechanism (140) for switching between two or more of a free state that allows relative rotation in both directions, a one-way clutch mode that allows relative rotation in one of forward and reverse directions, and a locked state that prohibits relative rotation in both directions. The operating mode switch mechanism (140) includes a cam orientation changing part (141) axially movable independently of rotation of the inner race (110) and the outer race (120). A plurality of cams (131) include an engaging portion (136) protruding from a side face toward the cam orientation changing part (141).

Abstract: An object of the present invention is to provide a one-way clutch capable of preventing wear on radially inner engagement surfaces and radially outer engagement surfaces of cams in periods of high-speed freewheeling. The one-way clutch includes an inner race (110) and an outer race (150), a plurality of cams (140) provided between the inner race (110) and the outer race (150), and side plates (120, 130) provided to at least one of the inner race (110) and outer race (150) and positioned on both sides in an axial direction of the cams (140). The plurality of cams (140) are each configured to receive a predetermined centrifugal force to turn in an engaging direction in which the cams engage the inner race (110) and outer race (150) when the inner race (110) and outer race (150) rotate together in the same direction.

Abstract: An object of the present invention is to provide a one-way clutch capable of preventing wear on radially inner engagement surfaces and radially outer engagement surfaces of cams in periods of high-speed freewheeling. The one-way clutch includes an inner race (110) and an outer race (150), a plurality of cams (140) provided between the inner race (110) and the outer race (150), and side plates (120, 130) provided to at least one of the inner race (110) and outer race (150) and positioned on both sides in an axial direction of the cams (140). The plurality of cams (140) are each configured to receive a predetermined centrifugal force to turn in an engaging direction in which the cams engage the inner race (110) and outer race (150) when the inner race (110) and outer race (150) rotate together in the same direction.