Shiftable friction clutch for gear drives

摘要

A shiftable friction clutch for gear drives, in which a shift collar is arranged axially movably on a carrier sleeve which is mounted on the shaft which must be coupled to a gear, and in which at least one axially movable friction ring is provided, which belongs to a first clutch half and which cooperates through clutch friction surfaces with a second clutch half and which is supported through rolling elements on the carrier sleeve for producing the contact pressure by means of pressure surfaces which are arranged on the front surfaces remote from the clutch surfaces and which are inclined with respect to the plane of rotation. The friction clutch is constructed as a spring-loaded safety clutch, in which the friction members which are pressed onto one another during the starting or engagement operation are supported against a spring.