Small knowledge of brake disc and brake drum
TIME:2018.03.07
Brake disc: the rotating element in the friction pair of the disc wheel brake is a disc shaped brake disc, and its two end face is the working surface.
The brake drum refers to the drum type brake drum in the friction pair of the drum type wheel brake, whose inner cylinder is the working face.
Compared with disc brake, drum brake's braking efficiency and heat dissipation are much worse than that of drum brakes. The braking force of drum brakes is poor, and braking force varies greatly on different roads, so it is not easy to control. And because of the bad heat dissipation, the drum brake has the phenomenon of heat decline. Of course, the drum brakes are not useless, it's cheap, and it's in line with traditional design.