Patent ID: 6203649
Filing Date: 2001-03-20
Classification: B29C,F16D,Y10T

Abstract:
A method of manufacturing a flat friction ring consisting essentially of a supporting ring and a friction lining on at least one side of the supporting ring, the friction lining defining at least approximately radial oil grooves, which comprises the steps of(a) cutting a strip out of a friction lining web, the strip defining a flat plane and(1) having slits extending from at least one longitudinally extending side of the strip and spaced from each other to form sectors therebetween, and(2) the slits being spaced from an opposite longitudinally extending side of the strip to leave connecting webs between the sectors,(b) bending the strip at the connecting webs about axes extending perpendicularly to the plane until the sectors form a polygon producing an annular friction lining wherein the slits define the oil grooves, and(c) gluing the annular friction lining onto the side of the supporting ring.