Disc Brakes and Types.

Disc Brakes.

The rotor (disc) is a one-piece casting with cooling fins between the two braking surfaces. This enables air to circulate between the braking surfaces making them less sensitive to heat buildup and more resistant to fade. Dirt and water do not affect braking action since contaminants are thrown off by the centrifugal action of the rotor (disc) or scrapped off by the pads. All disc brakes are inherently self-adjusting.

There are 3 general types of disc brake:
- A fixed caliper: It uses one or two pistons mounted on each side of the rotor ( in each side of the caliper). The caliper is mounted rigidly and does not move.
- A floating caliper: It use threaded guide pins and bushings, or sleeves to allow the caliper to slide and apply the brake pads.
- A sliding caliper

For pad removal purposes, fixed calipers are usually not removed, floating calipers are either removed or flipped (hinged up or down on one pin), and sliding calipers are removed.

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