Braking is the most familiar action in our daily driving. In most cases, the brake pedal is more important than the clutch pedal and the accelerator pedal. Some people often encounter brake shake when braking. Although they can stop, it is a bit worrying. Next, we will analyze this reason in several issues. This article mainly talks about one of the causes of brake shake – brake pads.
Brake pads are too hard or one side is worn too much
It is understood that the phenomenon of shaking when braking is more common on today’s trucks, and the main reason is uneven distribution of braking force. We truck friends all know that a separate brake drum and brake shoe are responsible for one side of the wheel. When our vehicle is braking, the brake drums and brake shoes on both sides of the wheel end should work at the same time, and continuously output uniform, lasting and stable braking performance, and finally stop the vehicle.
There are many causes of uneven braking force distribution, one of which may lie in the brake pads. Over time, the brake pads on the left and right wheels may wear to varying degrees due to driving habits, driving environment, and brake pad material. This can eventually lead to premature wear on one brake pad, resulting in uneven braking force distribution.
So, even though both brakes are operating simultaneously, excessive wear on one brake pad can lead to uneven braking force distribution, which can cause what truck drivers often call brake judder. If only one brake pad is worn, replacing it is sufficient. However, some truck drivers report that the judder doesn’t improve after replacing the brake pads. This may be due to the following reasons.
Replacing only one brake pad can cause uneven wear on both sides, and the same problem may recur after a short period of driving. Therefore, it is best to replace both brake pads at the same time. Secondly, there are many brake shoes and brands on the market. Many truck drivers rarely choose service stations for maintenance and repair after the warranty period of new cars, but choose to replace brake shoes outside.
Most of the brake shoes replaced by some small factories are not strictly designed according to the calibration of the original car, so the replacement brake shoes may not match well enough and have too high hardness, causing the friction coefficient between the brake shoes and the brake drum to be too high due to material problems during friction, and may also cause vibration and shaking when we brake. Therefore, when replacing brake pads, do not blindly believe in the braking performance advocated by the merchants, and replace them according to the brake shoes equipped by the original factory.
Of course, brake pads are only one of the reasons for the shaking of braking. We will continue to analyze other reasons in the future. If you need to replace and purchase related spare parts in the daily maintenance of trucks, you can contact us to buy! We can provide various engineering machinery products and related spare parts, welcome to consult!
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Post time: Jul-29-2025