The difference between brake shoes, pads, brake shoes and brake drums, brake shoes are consumables that create pressure and friction for brake discs/drums, and the same is true for brake pads. The brake drum, also called the brake drum, is something that rubs the brake hoof. Let's take a look at the specific differences between these 4 product terms.
Brake shoe refers to the brake cam or push rod and pushed outward to press the brake drum to brake the accessories to brake, installed on the brake drum, is one of the key safety parts of the automotive braking system. The shape of the brake shoe is like a half-moon, and when the brake is pressed, the two half-moon-shaped brake shoes are opened out under the action of the brake wheel cylinder, and the brake shoe rubs against the inner wall of the brake drum to slow down or stop.
Brake pads are also called brake pads. In the brake system of the car, the brake pad is the most critical safety part, all the brake effect is the brake pad plays a decisive role, so a good brake pad is the protector of people and cars. Brake pads are generally composed of steel plates, bonded thermal insulation layers and friction blocks, of which the thermal insulation layer is composed of non-heat-transferable materials for heat insulation. The friction block is composed of friction materials and adhesives, which are squeezed on the brake disc or brake drum to generate friction when braking, so as to achieve the purpose of vehicle deceleration and braking. Due to friction, the friction block is gradually worn out, and generally speaking, the lower the cost, the faster the brake pads wear. After the friction material is used, the brake pads should be replaced in time, otherwise the steel plate and the brake disc will be in direct contact, and eventually the brake effect will be lost and the brake disc will be damaged.
A brake drum is a cast iron piece shaped like a tambourine, which is fixed to the tire and rotates at the same speed. When braking, the hydraulic pressure is used to push the brake shoes to contact the inner edge of the brake drum, and the friction generated by the contact can suppress the rotation of the tire to achieve the purpose of braking. Drum brake is composed of brake base plate, brake sub-pump, brake shoe blade and other related connecting rods, springs, studs, brake drums. At present, it is only commonly used in the rear wheels. Drum brakes are less expensive and have higher absolute braking power, and are used more often in the rear wheels of small cars. However, its wear rate is high, so the overall cost is also higher.
The brake shoe is a friction couple of drum brakes, which should have the strength and rigidity required as a component, as well as the highest and most stable friction coefficient as possible, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity.
