Hebei Hankai 40x52x7 oil seal

The design must be such that it balances the need for a tight seal with the amount of friction generated during operation. Excessive friction can lead to wear and heat buildup, while insufficient sealing can allow fluid leakage. Therefore, engineers carefully select materials and dimensions to ensure optimal performance.
rotary lip seal

A typical drum brake line diagram illustrates several key components the brake drum, brake shoes, wheel cylinder, and the hardware kit, which includes springs and levers. The brake drum is a cylindrical component that rotates with the wheel. When the brake pedal is pressed, hydraulic pressure is generated in the brake line, pushing the piston in the wheel cylinder. This action causes the brake shoes to expand outward against the inner surface of the drum, creating friction that slows down or stops the vehicle.
Inoltre, i freni a tamburo offrono una buona performance in situazioni di frenata normale e hanno una migliore resistenza all'acqua rispetto ai freni a disco. Questo li rende una scelta valida per condizioni climatiche avverse, dove l'usura e il deterioramento dei componenti sono frequenti.
new cars with drum brakes
