# Name the three major assemblies that make up a disc brake.

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

#### Solutions

Chapter
Section
Chapter 52, Problem 1RQ
Textbook Problem

## Name the three major assemblies that make up a disc brake.

Expert Solution
To determine

The three major assemblies used to make up a disc brake.

The three major assemblies are hub and rotor assembly, a caliper assembly, and the brake pads assembly.

### Explanation of Solution

The disc brakes are comprised of three assemblies which are hub and rotor assembly, a caliper assembly, and brake pads assembly. The hub and rotor assembly is divided into two parts i.e. hub and rotor in which hub is the part in which wheel is fitted and may carry wheel bearings also. The rotor is the part which is generally made up with cast iron and is machined in a way that it provides a friction surface for the brake pads.

The caliper assembly is the one which is fitted to convert the hydraulic pressure to the mechanical force and inspects for the lining wear by the hole which is present on top of it. Further, a caliper has a capacity of containing up to six cylinders and pistons that helps in providing same level of pressure distribution.

The brake pad assembly is made up of metal having linings which are either riveted or bonded to them. It helps in straddling the rotor due to its position on each side of calipers. The linings on pads are semi-metallic in nature.

Conclusion:

Thus, the three assemblies which are used in making disc brakes are hub and rotor assembly, a caliper assembly, and the brake pads assembly.

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