Abstract: The present invention provides a one-way clutch comprising an outer race having an annular inner peripheral track surface, an inner race having an annular outer peripheral track surface and spaced apart from the outer race inwardly in a radial direction and disposed concentrically and rotatable integrally with respect to the outer race, torque transmitting members disposed between the outer race and the inner race to transmit torque therebetween, and a holder disposed between the inner race and the outer race and including a cylindrical portion and an annular flange extending from an axial one edge of the cylindrical portion radially outwardly and adapted to hold the torque transmitting members equidistantly along a circumferential direction via the cylindrical portion and wherein the cylindrical portion and the flange portion of the holder are configured to have a substantially true circular shape and the inner peripheral track surface of the outer race is configured to have a true circular shape, and a diam

Abstract: A stator is provided with an impeller and a one-way clutch. The stator includes at least one plain bearing and at least one side plate. The plain bearing is arranged adjacent to and on an axially outer side of a side portion of the one-way clutch and between an inner ring and an outer ring of the one-way clutch, and on its inner and outer peripheries, has flanges with bearing tracks formed thereon. The side plate is arranged on an axially outer side of the plain bearing and at a position adjacent to the plain bearing such that the side plate serves not only as a stopper for the plain bearing but also as a bearing track for a needle bearing. The plain bearing and side plate are provided with engageable portions, respectively, and are maintained in engagement with each other via the engageable portions.

Abstract: A stator is provided with an impeller and a one-way clutch. The stator includes at least one plain bearing and at least one side plate. The plain bearing is arranged adjacent to and on an axially outer side of a side portion of the one-way clutch and between an inner ring and an outer ring of the one-way clutch, and on its inner and outer peripheries, has flanges with bearing tracks formed thereon. The side plate is arranged on an axially outer side of the plain bearing and at a position adjacent to the plain bearing such that the side plate serves not only as a stopper for the plain bearing but also as a bearing track for a needle bearing. The plain bearing and side plate are provided with engageable portions, respectively, and are maintained in engagement with each other via the engageable portions.

Abstract: Disclosed herein is a bushing for a one-way clutch which is to be assembled in a stator of a torque converter. The bushing is useful for centering outer and inner rings of the one-way clutch and for backing up an associated thrust needle bearing. The bushing has a thrust surface to be positioned facing the thrust needle bearing and defines a center hole, an inner periphery and an outer periphery. The bushing is provided with a plurality of grooves formed in the thrust surface of the bushing and extending from the outer periphery to the inner periphery. An inward extension of a longitudinal center line of each of the grooves does not intersect a center of the bushing. The grooves may be arranged, for example, in the form of a whorl.