초록 ▼

The constant velocity joint comprises an outer joint member 1 in which eight linear guide grooves 1b are axially formed on an inner cylindrical surface 1a thereof, an inner joint member 2 in which eight linear guide grooves 2b are axially formed on an outer spherical surface 2a thereof and serration

The constant velocity joint comprises an outer joint member 1 in which eight linear guide grooves 1b are axially formed on an inner cylindrical surface 1a thereof, an inner joint member 2 in which eight linear guide grooves 2b are axially formed on an outer spherical surface 2a thereof and serrations 2c for connecting a shaft are formed on an inner surface thereof, eight torque transmitting balls 3 disposed in the ball tracks formed by cooperation of the guide grooves 1b of the outer joint member 1 and the guide grooves 2b of the inner joint member 2, and a cage 4 for retaining the torque transmitting balls 3. The spherical center B of the outer spherical surface 4b and the spherical center A of the inner spherical surface 4a of the cage 4 are respectively offset equidistantly to the opposite side in the axial direction with respect to the center 0 of the pocket 4c.

대표청구항 ▼

[ What is claimed is:] [1.]1. A plunging type constant velocity joint comprising:an outer joint member having a plurality of straight guide grooves formed on an inner cylindrical surface thereof and extending in an axial direction of the outer joint member;an inner joint member having a plurality of

[ What is claimed is:] [1.]1. A plunging type constant velocity joint comprising:an outer joint member having a plurality of straight guide grooves formed on an inner cylindrical surface thereof and extending in an axial direction of the outer joint member;an inner joint member having a plurality of straight guide grooves formed on an outer spherical surface thereof and extending in an axial direction of the inner joint member;a plurality of ball tracks defined between the guide grooves of the outer joint member and the guide grooves of the inner joint member;a plurality of torque transmitting balls each disposed in each of the ball tracks; anda cage having pockets for retaining the torque transmitting balls, an outer spherical surface brought into contact with inner cylindrical surface of the outer joint member to be guided thereby, and an inner spherical surface brought into contact with the outer spherical surface of the inner joint member to be guided thereby, wherein the spherical center of the outer spherical surface of the cage and the spherical center of the inner spherical surface of the cage are respectively offset to the opposite side in an axial direction of the cage with respect to centers of the pockets,wherein the number of the ball tracks and that of the torque transmitting balls are respectively eight.