Patent ID: 6095006
Filing Date: 2000-08-01
Classification: F16D,Y10T

Abstract:
A cup-shaped clutch drum having a peripheral wall, comprising:a tooth profile portion formed in the peripheral wall and having an inwardly projecting portion and an outwardly projecting portion; anda circumferential groove for mounting a snap ring on a portion close to an open end of the inside projecting portion, the circumferential groove being formed in the inner surface of the inwardly projecting portion;wherein a minimum wall thickness of the portion close to the open end of the inside projecting portion is formed larger than a minimum wall thickness of other portions of the inside projecting portion which are axially displaced toward a bottom of the cup-shaped clutch drum;an outer diameter of the portion close to the open end of the inwardly projecting portion is larger than a diameter of the circumferential groove.