General Information

The Bosch hydraulic pin slide disc brake is a two-piston sliding caliper brake and is used at both the front and rear wheel locations. Each pin slide caliper disc brake wheel installation is made up of a caliper assembly, anchor plate assembly, and disc brake pads.

Caliper Assembly

The caliper assembly has two hydraulic piston bores. The piston bores contain pistons, piston seals, and piston boots. The caliper assembly attaches and slides on sealed pins located in the anchor plate. The caliper housing is the main component of the caliper assembly. The material of the caliper housing is ductile iron and has a protective coating to provide additional environmental protection. The disc brake caliper housing straddles the rotor, the inner pad, and the outer pad.

Anchor Plate Assembly

The anchor plate assembly includes lubricated floating guide pins sealed by rubber boots. The anchor plate abutments are protected by stainless steel slippers.

Disc Brake Pads

There are two pads per caliper assembly, and they are the inner and outer pads. The inner pad is located between the caliper piston and rotor. The outer pad is located between the rotor and caliper housing legs. The pads are made of friction material and a stamped steel backing plate. The pads are referred to as the shoe and lining assembly. These brake pads can be removed without removing the caliper.