Disc Brake System: Description and Operation

Disc Brake System Description and Operation

System Component Description

The disc brake system consists of the following components:

Disc Brake Pads

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Applies mechanical output force from the hydraulic brake calipers to friction surfaces of brake rotors.

Disc Brake Rotors

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Uses mechanical output force applied to friction surfaces from the disc brake pads to slow speed of tire and wheel assembly rotation.

Disc Brake Pad Hardware

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Secures disc brake pads firmly in proper relationship to the hydraulic brake calipers. Enables a sliding motion of brake pads when mechanical output force is applied.

Disc Brake Caliper Hardware

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Provides mounting for hydraulic brake caliper and secures the caliper firmly in proper relationship to caliper bracket. Enables a sliding motion of the brake caliper to the brake pads when mechanical output force is applied.

Disc Brake Caliper Hardware (J64)

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The hydraulic brake caliper is secured by two bolts to the steering knuckle. Four hydraulic pistons enables a sliding motion of the brake pads when mechanical output force is applied.

System Operation

J60, J61, J62

Mechanical output force is applied from the hydraulic brake caliper pistons to the inner brake pads. As the pistons press the inner brake pads outward, the caliper housings draw the outer brake pads inward. This allows the output force to be equally distributed. The brake pads apply the output force to the friction surfaces on both sides of the brake rotors, which slows the rotation of the tire and wheel assemblies. The correct function of both the brake pad and brake caliper hardware is essential for even distribution of braking force.

J64:

Mechanical output force is applied from the hydraulic brake caliper 4 pistons, two pistons on each side of the caliper. They are connected hydraulically by a brake pipe. The hydraulic pressure press the brake pads outwards. The brake pads apply the output force to the friction surface on both sides of the rotors, which slows the rotation of tire and wheel assemblies. The correct function of both the brake pad and brake caliper hardware is essential for even distribution of braking force.