Patent ID: 7143882

Claim:
Disk ( 1 , 11 ) for a force transmitting aggregate, with a core plate ( 2 , 12 ) exhibiting a front side (V) and a backside (R), wherein the front side (V) and/or the backside (R) is provided with a friction lining ( 3 v , 3 r , 13 v ), thereby characterized, that the friction lining ( 3 v , 3 r , 13 v ) exhibits an essentially planar surface (O 3v , O 3r , O 13v ), and that the friction lining ( 3 v , 3 r , 13 v ) exhibits at least one area ( 6 ) of the surface having a spring characteristic and the at least one area is raised in comparison to the planar surface (O 3v , O 3r , O l3v ); the raised at least one surface area ( 6 ) being formed unitarily with the remaining friction lining ( 3 v , 3 r , 13 v ), wherein the at least one raised area is compressed upon an engagement of the friction lining whereby the at least one raised area is displaced to be in essentially the same plane as the essentially planar surface; the raised surface area ( 6 ) of the friction lining ( 3 v , 3 r , 13 v ) is surrounded by one or more grooves ( 4 a , 4 b , 5 a , 5 b , 5 c , 14 a , 14 b , 15 a , 15 b , 15 c ).