What is brake shoe?
A brake shoe is the part of a braking system which carries the brake lining in the drum brakes used on automobiles, commercial vehicles or the brake block in train brakes and bicycle brakes. A device that is put on a track to slow down railroad cars is also called brake shoes.
How to identify a better quality brake shoe?
The quality of brake shoes is defined by material, manufacturing process, process quality control and quality standard which brake shoes manufacturers are according to.
If you are a consumer or a driver, it’s really difficult to know the manufacturing process.However we can judge the quality through the following aspects
The below post is for consumers only, if you are a professional brake shoes buyer, importer or distributor, please refer to the below post.
1,Brake Shoe Steel Material
Steel Material is most important for brake shoes. Some brake shoes factories use low grade steel to get low prices. Frankly it’s not possible for consumers to test the material. However, we can consider the following aspects.
a, the flatness of the drum brake shoes surface.
b, the thickness tolerance of steel.
Generally, thestell thickness tolerance is +/-0.2mm, if the thickness tolerance exceeds +/-0.2mm, then we can suspect that the steel is not purchased from a famous steel manufacturer.
2,Welding quality
Brake shoes welding is very important for quality. Welding depth and welding strength is very important. However, as a consumer or driver, we only can identify the welding quality from the appearance.
a, welding methead
point welding, segment welding, full welding.
We recommend segment welding or full welding brake shoes.
b, welding quality- visual check
In welding, appearance is a key indicator of quality (via workmanship), with the width, shape and uniformity of the weld crown bead, presence and uniformity of the root bead, and weld profile width-to-depth ratio and shape being especially telling indicators.
weld width. weld defects, such as crack, porosity, undercut….