Fixed type constant velocity joint and assembling method therefor

摘要

A fixed type constant velocity joint comprising an outer ring whose inner spherical surface is formed with a plurality of track grooves disposed at circumferentially equispaced intervals to extend axially toward an open end. An inner ring whose outer spherical surface is formed with a plurality of track grooves is paired with the track grooves of the outer ring disposed at circumferentially equispaced intervals to extend axially. A plurality of balls is interposed between the track grooves of the outer and inner rings to transmit torque. A cage is interposed between the inner spherical surface of the outer ring and outer spherical surface of the inner ring to hold the balls. The open-side groove bottom of each track groove of the outer ring is shaped as a taper linearly diameter-expanded toward the open end thereof.