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Brake caliper - function and role

The brake caliper is an important part of the disc brake system. With a disc brake, the braking effect is produced by the axial pressure of the brake pads against a brake disc. The task of the caliper is to guide the brake pads. When pressing the brake, it converts the hydraulic pressure via the brake hoses and brake lines into a mechanical force on a piston system, wherein the brake pads are pressed against the brake disc rotating with the wheel. There are various types of brake calipers, although the floating caliper is most commonly used in the automotive industry. The brake caliper is in the area of a wheel on the vehicle as part of the disc brake. Well-known manufacturers of brake calipers are TRW, NK, MAPCO, BUDWEG CALIPER, LAUBER, ATE and BREMBO.

What can happen if a caliper is defective?

External influences such as dirt, moisture or mechanical impacts subject the brake caliper to constant wear and tear, which is detrimental in the long to the freedom of movement of the brake piston and the conduct of the brake pads. Seals can also become damaged, causing brake fluid to escape. If such signs of wear are apparent, and the moving parts function is impaired even after maintenance, it is recommended to replace the brake caliper. A damaged brake caliper can lead to increased wear on brake pads and brake discs, and in the worst case can lead to a complete loss of braking performance. Poor braking performance can therefore also indicate a damaged brake caliper. Poor performance of the hand brake of the vehicle can also be an indication of a defective brake caliper because this significantly contributes to the function of the brake.

Replacing the brake caliper

Only a workshop or a specialised person should carry out brake caliper replacements. The vehicle is first lifted and then the wheel removed. After releasing the appropriate fixtures the brake hose can then be removed and the caliper can then be taken from the brake disc. It is necessary to vent the brake system after a replacement. It is also good to replace the brake fluid and the brake pads. Exact instructions can be found in the technical literature or on the internet. You can find a large selection of calipers at low prices in our online shop. You can order more parts from our wide range of products cheaply and quickly.