@jacqueslees: Brake Block Key (Brake Shoe Key / Brake Block Retaining Pin) The brake block is the actuating element of the vehicle braking system. At present, composition brake blocks are most commonly used. The brake block pin — commonly known as the brake block key — features a curved (arc-shaped) profile and is secured inside the key seat (pin seat) of the brake head on the brake beam, thereby serving to hold the brake block in place.

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Thursday 10 September 2026 02:08:13 GMT