CONSTANT VELOCITY JOINT

摘要

A constant velocity joint of a vehicle includes an outer race, an inner race, a plurality of balls, and a cage. The cage holds the balls against a plurality of first ball grooves and a plurality of second ball grooves. An offset amount in a case where a joint angle is equal to or smaller than a predetermined value is larger than an offset amount in a case where the joint angle exceeds the predetermined value. The joint angle is an angle formed by an axis of the outer race and an axis of the inner race when intersecting with each other. The offset amount is a distance between a center point of a pitch circle radius as a distance between a center of each of the balls and a center of curvature of a corresponding one of the first and second ball grooves, and a joint center point.

主权项

1. A constant velocity joint of a vehicle, comprising:
an outer race having a plurality of first ball grooves in an inner circumferential surface; an inner race disposed radially inwardly of the outer race, the inner race having a plurality of second ball grooves in an outer circumferential surface; a plurality of balls inserted between the plurality of first ball groves and the plurality of second ball grooves so as to roll along the plurality of first ball grooves and the plurality of second ball grooves, the plurality of balls being configured to transmit torque between the outer race and the inner race; and a cage that holds the plurality of balls against the plurality of first ball grooves and the plurality of second ball grooves, wherein an offset amount in a case where a joint angle is equal to or smaller than a predetermined value is larger than an offset amount in a case where the joint angle exceeds the predetermined value, the joint angle being an angle formed by an axis of the outer race and an axis of the inner race when intersecting with each other, the offset amount being a distance between a center point of a pitch circle radius as a distance between a center of each of the balls and a center of curvature of a corresponding one of the plurality of first ball grooves and the plurality of second ball grooves, and a joint center point.