Brake Application

As the brake pedal is applied, initial hydraulic pressure acts on the sliding brake caliper housing causing the piston to extend toward the brake disc. The moving piston contacts the inner brake pad, forcing the brake pad along the anchor guide channels of the brake caliper. The brake pad then contacts the inner side of the brake disc.

As the piston extends from the brake caliper housing, it passes through an internal annular seal located within the brake caliper housing. The movement of the piston distorts the shape of the seal and consequently, the seal applies pressure on the piston outer surface.

The sliding brake caliper now reacts and commences to slide along the 2 bushed bolts, in the opposite direction to the extending piston. The sliding brake caliper contacts the outer brake pad, forcing the brake pad along the anchor guide channels of the brake caliper. The brake pad then contacts the outer side of the brake disc. The housing spring that is attached between the brake caliper anchor and sliding brake caliper is tensioned as the sliding brake caliper moves toward the brake disc.

With both brake pads now in full contact with the brake disc and hydraulic pressure acting on the piston. No further movement of the piston and sliding brake caliper is possible. The force created by the piston and brake caliper acting against the brake pads increases rapidly, trapping the brake disc and slowing the vehicle.