Abstract: A yoke assembly is constructed by retaining integrally a yoke ring having positioning holes aligned with pole claws arranged equally on the inner circumference and a yoke ring having positioning holes aligned with the space between pole claws arranged equally on the inner circumference by a retaining cylinder made of a resin. The retaining cylinder has a pin hole remaining after pulling out a common positioning pin inserted into the positioning holes during molding.

Abstract: A yoke assembly is constructed by retaining integrally a yoke ring having positioning holes aligned with pole claws arranged equally on the inner circumference and a yoke ring having positioning holes aligned with the space between pole claws arranged equally on the inner circumference by a retaining cylinder made of a resin. The retaining cylinder has a pin hole remaining after pulling out a common positioning pin inserted into the positioning holes during molding.

Abstract: A tripod type constant-velocity joint includes raceway grooves formed in side faces of each track groove formed in an inner periphery of an outer ring, and in side faces of each guide block supported by each of three trunnions of a tripod member. A plurality of rolling elements mounted between the raceway grooves are retained by retainers. The retainers have a structure such that a plurality of pockets are formed in plate members, and a plurality of claws extending in opposite directions are provided on a periphery of each pocket, so that the retainers can be formed by performing pressing operations.

Abstract: A tripod type constant-velocity joint is proposed which is lower in cost and lighter in weight. Raceway grooves are formed in side faces of each track groove formed in the inner periphery of an outer ring and in side faces of each guide block supported by each of three trunnions of a tripod member. A plurality of rolling elements mounted between the raceway grooves are retained by retainers. The retainers have such a structure that a plurality of pockets are formed in plate members and a plurality of claws extending in opposite directions are provided on the periphery of each pocket so that it can be formed by pressing. It is thus possible to achieve reduced cost and lighter weight for a tripod type constant-velocity joint.