Rear Disc Brake System Operation

Fig. 1 A.T.E. Floating Caliper Rear Disc Brake Assembly:

This single piston, floating caliper rear disc brake assembly, includes a hub assembly, rotor, caliper, pads, an adapter and a mechanically operated parking brake. The caliper has either a 1.299 (33 mm) or 1.42 inch (36 mm) piston located on the inboard side.

The caliper floats on rubber bushings with metal sleeves on two bolts that are threaded into the adapter. Two machined abutments on the adapter position and align the caliper and brake pads for movement fore and aft.