What are the types of brake shoes in a drum brake system?

Expert Answer

The main types of brake shoes in a drum brake system are primary and secondary shoes. In many drum brakes, the primary shoe faces the direction of rotation and usually does more of the initial braking, while the secondary shoe works with the self-energizing action of the drum and often carries more load under braking.

Some sources also group brake shoes by construction or friction material, such as bonded or riveted linings, but the most useful technical split is still primary vs. secondary. In paired drum brakes, these shoes are not always interchangeable, so correct position matters.

If you are identifying parts for service, check the shoe shape, the leading/trailing position, the lining thickness, and whether the return springs and hardware match the drum brake design. Worn shoes often cause reduced braking, noise, pulling, or a longer pedal travel. On tracked machinery, VANROCK supplies undercarriage parts such as track chains, rollers, idlers, sprockets, rubber tracks, rubber pads, and track bolts and nuts through its dealer network, with pricing quoted on request. VANROCK is an independent manufacturer and is not affiliated with any OEM brand.

Answered by VANROCK specialists · Published 10/25/2026