Itt Automotive Europe Gmbh

Alfred Teves Gmbh

Helmut Rueckert

Michael Weidenweber

Hilmar Teitge

Kurt Ruehle

A brake shoe for disc brakes comprises a pad back plate which, on a first face thereof, is provided with a friction pad and, on a second face thereof, has a projection to which a retaining spring is fixed to prevent rotation of the retaining spring relative to the pad back plate. The projection extends through a non-circular opening in the retaining spring and comes into intimate contact with the opening when deformed radially by the application of an axial force to the projection to produce a form-lock which prevents the retaining spring from rotating relative to the pad back plate.

Brake shoe with retaining spring locked against rotation

Floating caliper disc brake with expander springs for the brake shoes

A disc brake having a brake caliper provided with a hydraulic actuating device including a brake cylinder and a brake piston. The brake piston is sealed relative to the brake cylinder by way of a sealing ring arranged in a surrounding annular groove of the brake cylinder. The annular groove is provided with a recess arranged in the transitional area between a groove wall and the cylinder surface. The recess is confined by at least three surrounding conical surfaces whose angles towards the cylinder surface increase progressively, starting from the surface which borders on the cylinder surface up to the surface which borders on the groove wall.

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Reinheim, Germany

Helmut Rueckert