Open framework disc brake caliper having an elastomeric cylinder liner

Abstract

A disk brake caliper comprises a cast body including an inboard support, an outboard support, and an open framework interconnecting both supports. The caliper body includes a cast brake cylinder closed at one end arranged inwardly of the framework and extending through the inboard support. The cylinder has a liner of elastomeric material bonded to its interior and yieldably receives a pressure piston of cylindrical shape. The method of forming a liner within the cylinder includes inserting a polished steel plug mold into the cylinder having a bore and an end wall which are coated with a bonding agent, uniformly spacing the plug mold from the cylinder bore and end wall, clamping the mold upon the cylinder, injecting uncured rubber through a passage in the mold and filling the space between the cylinder and the plug and curing the rubber until it adheres and is bonded to the cylinder.

Dependencies are inferred from the claim text.