Brake disc

1. The brake disc diameter

Brake disc diameter D should get bigger, as far as possible at this time of the brake disc effective radius increases, can reduce the brake pliers clamping force, reduce the unit pressure and working temperature liner. Restricted by rim diameter, the diameter of the brake disc usually a 79% 70% of choice for the rim diameter. Total quality is greater than 2 t car should take limit.

2. The thickness of the brake disc

The quality of brake disc brake disc thickness and temperature rise at work. In order to make the quality, the thickness of the brake disc is unfavorable make large; In order to reduce the temperature, the thickness of the brake disc and shoulds not be too small. Can be made of solid brake disc, or to the need of the cooling ventilation in the middle of the brake disc casting out vent. Generally solid brake plate thickness is desirable for 10 to 20 mm, ventilated brake disc take for 20 ~ 50 mm thickness, using more is 20 to 30 mm. In high speed motion under emergency braking, brake disc will form the thermal deformation, trembling. To improving the performance of the brake disc friction surface heat dissipation mostly put made middle hollow ventilated brake disc brake disc, it can make the brake disc temperature lower 20% ~ 30%.

Friction liner

Friction liner is refers to the clamps piston push extrusion on the brake disc friction material. Friction liner is divided into friction materials and floor, which directly embedded in the together.

Friction lining and inside radius and outside radius only block recommended friction liner outside radius and the inner radius ratio is not greater than 1.5. Work if this ratio is larger, the outside part of the liner and the inside of the rotational speed difference is more, uneven wear, reduce the contact area and eventually led to the change of braking torque.

For disc brake lining piece of work area, A recommendation based on unit area of the brake pad of automotive quality in 1.6 ~ 3.5 (kg ╱ square centimeters) within the scope of use.

Brake disc made of alloy steel and fixed on the wheel, the wheel rotation. Fixed on the bottom plate of brake cylinder fixed and two friction patches on the brake caliper, respectively, on both sides of the brake disc, wheel cylinder oil delivery to the piston of hydraulic effect, promote friction plate pressure to the brake disc friction braking, move up as if with tongs clamped rotation of the plate, forcing it to stop.