Why is there a gap in the price of bearings?

Bearings are complex, some cost a few dollars and others sell for tens of hundreds of dollars. The bearings all look similar, so why the price difference is so big?

Because there are many kinds of bearings, including balls, cones, self-aligning, large, small, and miniature, the structures and processing methods are very different. Even for the same type of bearing, the price will be affected by factors such as the machining accuracy of the bearing, bearing material, and procurement channels. At present, the domestic heat treatment process is already very advanced, and the manufacturing precision is high, the manufacturing and assembly process is more reasonable, and the service life is longer. Although the dimensional deviation and rotation accuracy of our bearings are very close to those of well-known brands, they are even higher than their technical level.