Importance

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Abstract

A one-way clutch includes an inner race 16; an outer race 15 surrounding the inner race 16; a plurality of rollers 20 inserted between an outer peripheral surface of the inner race 16 and a plurality of wedge faces 18a formed on the outer race 15 so that they are opposed to the outer peripheral surface of the inner race 16; and springs 19 for biasing the rollers 20 in directions to bite into the wedge faces 18a. In the one-way clutch, the outer race 15 comprises an outer race body 17 made of a light alloy and surrounding the inner race 16, and roller-receiving members 18 which have the wedge faces 18a and which are disposed on bottoms of a plurality of recesses 28 in the inner race body 17 and harder than the outer race body 17. Thus, it is possible to achieve a reduction in weight of the outer race, while ensuring the durability of a contact face of the outer race with the rollers.

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First Claim