Brake drums are one of the main products provided by our company. What are the reasons for the overall high cost of brake drums?
A brake drum is a cast iron piece with a shape similar to a bell drum, which is fixed to the tire and rotates at the same speed. When braking, hydraulic pressure is used to push the brake shoes into contact with the inner edge of the brake drum, and the frictional force generated by the contact suppresses the rotation of the tire to achieve the purpose of braking. The drum brake is composed of the brake base plate, brake wheel cylinder, brake shoes, and other related connecting rods, springs, pins, and brake drums. Currently, it is only commonly used on the rear wheels. Drum brakes have lower costs and higher braking force, and are more commonly used in the rear wheels of small cars. But its wear rate is relatively high, so the overall cost is also high.
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