Brake Caliper: Description and Operation

Fig. 1 Delco-Moraine series 5349 front disc brake caliper exploded view:

Fig. 2 Delco-Moraine series 5748 rear disc brake caliper exploded view:

This caliper, Figs. 1 and 2, has a single bore and is mounted to the support bracket with two mounting bolts. Hydraulic force, created by applying force to the brake pedal, is converted by the caliper into friction. The hydraulic force is applied equally against the piston and the bottom of the caliper bore moving the piston outward, resulting in a clamping action on the brake rotor.