Brake drum characteristics
1. The groove can block the free extension of part of the surface crack,
2. The groove can resist the thermal deformation of the drum and maintain the inherent shape of the high temperature state.
3. The groove establishes a heat removal passage for the center of the drum.
4. The groove can overcome the slip caused by oil and water soaking and prevent brake failure.
5 Spiral grooved brake drums extend the life of the brakes.
Broadband friction and intermittent friction can truly control the rise of the drum body temperature. Low temperature is very beneficial to vehicle braking, and it further proves the safety and scientificity of opening the spiral groove in the brake drum wall.