- duo-servo drum brake
- A type of self-energizing drum brake that has servo action in both forward and reverse
Dictionary of automotive terms. 2015.
duo-servo drum brake
Look at other dictionaries:
servo-action drum brake — See duo servo drum brake … Dictionary of automotive terms
Drum brake — A drum brake with the drum removed as used on the rear wheel of a car or truck. Note that in this installation, a cable operated parking brake uses the service shoes … Wikipedia
brake — [1] To slow down a vehicle. [2] The mechanism that converts motion (kinetic energy) into heat energy through friction. The most common instance is found in the wheels of cars where the brake shoes or disc pads are designed to press against the… … Dictionary of automotive terms
primary shoe — [1] The shoe of a brake drum system which pivots outwards into the approaching drum. The British term is leading shoe [2] The shoe in a duo servo drum brake that transfers part of its braking force to the secondary shoe … Dictionary of automotive terms
anchor pin — The stationary portion of a duo servo drum brake on which the tops of the brake shoes rest. The secondary shoe bears against the anchor pin when the brakes are applied and the vehicle is moving forward. Conversely, when the vehicle is backing up… … Dictionary of automotive terms
secondary shoe — The shoe in a duo servo drum brake assembly that is acted upon by the primary shoe. It provides more stopping power than the primary shoe (about 70%). See trailing shoe … Dictionary of automotive terms
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