How to choose micro motor bearings in different occasions?

Bearings are an indispensable and important part of mechanical products, and they play an important role in supporting the rotating shaft of a micromotor. According to the different friction characteristics of bearings, bearings can be divided into rotary friction bearings (referred to as rolling bearings) and sliding friction bearings. Both types of bearings are unique in structure and have advantages and disadvantages in terms of performance. To comprehensively consider the selection in combination with the actual situation, the following briefly introduces how to choose the micro motor bearing in different occasions.

1. The radial space size of the motor is limited, and the installation must be divided

Because of the inner ring, outer ring, rolling body and cage in the structure of rolling bearing, the radial size is large, and the application is limited. When the radial size requirements are strict, needle roller bearings can be selected. When necessary, sliding bearings need to be selected. For bearings that are inconvenient, or cannot be installed from the axial direction, and parts that must be installed separately, split sliding bearings are used.

2. High-precision occasions

When the micro-motor bearings used have high precision requirements, sliding bearings are generally used, because the lubricating oil film of the sliding bearings can buffer and absorb vibration. When the precision is extremely high, only hydrostatic sliding bearings can be used. For precision and high-precision grinding machines, various precision instruments, etc., sliding bearings are widely used.

3. Heavy load occasions

Rolling bearings, whether they are ball bearings or roller bearings, are prone to heat and fatigue in heavy-load applications. Therefore, when the load is large, sliding bearings are often used.

The above is the relevant knowledge of the selection of micro-motor bearings, I hope to help you.