The different between cross roller bearings and ordinary bearings
Compared with ordinary bearings, cross roller bearings have the following differences:

1. Structure difference: The internal structure of cross roller bearings is more complex, consisting of multiple cross arranged rollers and raceways, while ordinary bearings are composed of one roller and one raceway.

2. Stronger load-bearing capacity: Due to the large number of rollers and contact points inside the cross roller bearing, it has higher load-bearing capacity and can withstand larger radial and axial loads.

3. Higher accuracy: The internal structure of cross roller bearings is complex and requires high-precision machining and assembly, thus having higher accuracy to meeting the requirements of high-speed and high-precision work.

4. Longer service life: Cross roller bearings have a larger contact area between the internal rollers and raceways, resulting in less friction, less wear, and longer service life.

5. More convenient installation: The internal structure of the cross roller bearing is compact, with smaller external dimensions, making installation more convenient and saving space.

In summary, cross roller bearings have advantages such as higher load-bearing capacity, higher accuracy, longer service life, and more convenient installation compared to ordinary bearings. Therefore, they are widely used in mechanical equipment under high-speed, high-precision, heavy-duty, and complex working conditions.

More precisely, cross roller bearings belong to a type of precision bearings. Precision bearings refer to bearings manufactured under strict processing and assembly conditions, which have the characteristics of high precision, high reliability, high load-bearing capacity, and long service life. They are widely used in high-speed, high-precision, and high reliability mechanical equipment.

Cross roller bearings have complex internal structures that require high-precision machining and assembly, and can meet the requirements of mechanical equipment under high-speed, high-precision, heavy-duty, and complex working conditions. Therefore, they are widely used in industrial robots, CNC machine tools, aerospace equipment, and other fields. It belongs to a type of precision bearing.