Hebei Hankai hydraulic pump oil seal


There are primarily two types of springs in a drum brake system return springs and hold-down springs. Return springs are designed to pull the brake shoes back to their original position after the driver releases the brake pedal. This action prevents the shoes from dragging against the drum, which not only enhances fuel efficiency but also prolongs the life of the brake components.
drum brake spring

A drum brake self-adjuster repair kit typically includes all the necessary components to restore the functionality of the self-adjuster mechanism. The kit generally consists of an adjusting screw, spring, lever, and sometimes additional hardware such as clips and cotter pins. These parts work together to maintain the correct position of the brake shoes, ensuring even pressure across the drum and preventing excessive wear.