Toyota Land Cruiser Auto Brake Discs 322*32mm OEM 09.B968.10 Grey Cast Iron

Toyota Land Cruiser Original Disc 322*32mm OEM 09.B968.10 Grey Cast Iron

what about disc brake

The brakes have disc brakes, drum brakes and air brakes. Many older cars have front disc brakes and rear drums. Many cars have disc brakes front and rear. Because the heat dissipation of the disc brake is better than that of the drum brake, in the high-speed braking state, it is not easy to produce thermal recession, so its high-speed braking effect is good. But at low speed, the braking effect is not as good as that of drum brakes. The price is more expensive than the drum brake. Therefore, many middle and high-end cars use full disc brakes, while ordinary cars use front discs and rear drums, while relatively low-speed trucks and buses that require high braking force still use drum brakes.
The drum brake is sealed and shaped like a drum. There are also many called brake pots in China. It turns when driving. There are two arc or semicircle brake shoes fixed inside the drum brake. When you step on the brakes, the two brake shoes spread out under the action of the brake wheel cylinder, supporting the brake shoes to rub against the inner wall of the brake drum to slow down or stop.
Disc brake discs (discs) are divided into solid discs (single discs) and air duct discs (double discs). The solid disc type is easier for us to understand. To put it bluntly, it is solid. Vented Disc, as the name suggests, has the function of ventilation. From the outside, it has many holes on the circumference leading to the center of the circle, called air ducts. The air convection at the air duct is used by the car to achieve the purpose of heat dissipation, which is much better than the solid heat dissipation effect. Most of the cars are front-drive, and the frequency meter of the front disc is worn more, so the front air duct disc and the rear solid disc (single disc) are used. Of course, there are also air duct discs at the front and rear, but the manufacturing cost is not too bad.
The first picture in this article is a perforated scribing disc. Its braking performance and heat dissipation have been improved to a certain extent, but it has a large wear on the brake pads. DIY modified brake disc, friendly reminder: 1. The material of the disc must be good enough, without too many defects that affect the strength, such as large pores, sand holes, and shrinkage porosity is not allowed. 2. The spacing and size distribution of the holes, etc., because one more hole is drilled, the strength of the place is slightly weaker. If the disk breaks, the consequences are unimaginable. 3. Symmetrical equalization. If the balance of the disc is seriously damaged, it will have a certain impact on the spindle during driving. 3. This is a hard project, please be cautious. Without professional guidance, it is best not to act recklessly.
Brake discs with punched lines, also known as "high-speed discs" or "modified discs", are generally assembled in high-performance vehicles, such as racing cars, sports cars or sports cars. With the rise of the modification wind in the domestic automobile industry in recent years, many riders do DIY by themselves, obtain punched and scribed brake discs from various ways and then change them by themselves. The perforated and scribed brake disc is a double-edged sword, and its advantages and disadvantages coexist, but the wear of this type of brake disc will increase the wear of the brake pads, and the material and processing requirements of the brake disc are also relatively high. Many small companies pretend to be brands from European, Taiwanese, Japanese and other manufacturers to produce high imitation brake discs, which requires many players who like DIY to pay more attention.
The brake disc is a very important part in the braking system. A good brake disc brakes stably, without noise and vibration. Many DIY players do not have certain professional knowledge and do not replace the brake discs by themselves, because the original brake discs have been tested by many professional engineers and can fully withstand the braking force of their own cars. Sometimes after replacing the punched and marked brake disc, the braking effect is not necessarily better than the original ordinary disc. Therefore, as for the total parts and components related to safety, it is necessary for all riders to be cautious when modifying.

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