High precision axle bar is a cylindrical object which is worn between axle bar bearing or wheel or gear, but a few parts are square. High precision axle bar is a mechanical part that supports rotating parts and rotates with them to transfer motion, torque or bending moment. Generally, it is a metal rod with different diameters. The rotating parts of the machine are mounted on the high precision axle bar.

Cause of wear

The wear of high precision axle bar is the most common equipment problem in the use of high precision axle bar. There are many reasons for wear of high-precision axle bar, but the main reason is that the metal characteristics used to manufacture high-precision axle bar are determined. Although the metal has high hardness, it has poor resilience (it can not be recovered after deformation), poor impact resistance and poor fatigue resistance, so it is easy to cause adhesion wear, abrasive wear, fatigue wear, fretting wear and so on, most of which are high. The wear of precision axle bars is not easy to detect. Only when there are high temperature, large jump range and abnormal noise of the machine, people will be aware of it. But when people find out, most of the high precision axle bars have been worn, which causes the machine to stop.