Method for producing an outer shell for overrunning clutches

摘要

A novel method for producing an outer shell for an unitary overrunning roller clutch and roller bearing having a central section provided with camming or ramp surfaces about its circumference and on either side thereof a smooth cylindrical end section as a race for cylindrical rollers with the diameter of the inner enveloping circle of the central section being less in the area of the camming surfaces than the diameter of the end sections comprising forming a shell of sheet metal, inserting into the shell a molding punch whose outer contour corresponds to the desired inner contour of the outer shell, stretching the shell to its final outer diameter with a die moving relative to the punch whereby the shell tightly grips the molding punch and pulling the molding punch out of the shell which will elastically widen.