What is the gap between brake pads and brake discs?

[JosephFitz]

The gap between the brake disc and the brake pad is very small. Here is an introduction to the relevant content: 1. Reason: Because the rubber ring of the piston seal will deform during braking, causing the piston to move outward, thereby clamping the brake disc with the brake pads. When the brake is released, the rubber returns to its original shape due to the absence of pressure, and the piston retracts. 2. Adjustment mechanism: The adjustment mechanism consists of a screw sleeve, a screw rod, and a dial plate component. The screw rod includes a threaded part and a fixed part, and the screw sleeve includes an internal threaded part and a fixed part. The threaded part of the screw rod can be inserted into the internal threaded part of the screw sleeve. The dial plate component mechanism transmits the control mechanism through the brake or handbrake adjustment mechanism to the dial plate component, and the internal threaded operation part accurately records the wear of the brake shoes during the braking process, thereby achieving automatic adjustment of the brake gap.