Sep 19, 2025
Brake Expander: Essential Component for Reliable Braking Performance
Brake Expander: Essential Component for Reliable Braking Performance The brake expander is a core component of drum brakes. Its working principle is primarily through mechanical or hydraulic/pneumatic actuation, causing the brake shoes to expand outward and contact the inner wall of the brake drum, generating friction and thus achieving braking. 1. The detailed working mechanism is as follows: I. ...