Brake drum working principle, brake system is mainly divided into brake disc and brake drum, and then I explain the working principle of brake drum for you. Brake Drum work principle, is to rely on the friction between the two, friction to reduce the speed of the wheel rotation braking device. When the foot is applied to the brake pedal, the Piston in the master brake pump pushes the brake fluid forward and creates pressure in the oil path. The pressure is transmitted through brake fluid to the brake pump piston of each wheel, which pushes the brake pad outward, causing friction between the pad and the inner surface of the brake drum, and generating enough friction to slow down the speed of the wheel, for braking purposes. After reading today's introduction, if you are interested in our products, welcome to contact us directly and look forward to your visit! Longyao County Xiangyuan Auto Parts Co. , Ltd. is located in No. 12, zone a 3, Goseong industrial park, Longyao County, Xingtai, Hebei Province. The company's main products are: Brake Drum, wheels, brake disc, brake shoe and other domestic, imported cars, semi-trailer, fully trailer chassis accessories, a complete range, stable and reliable quality.