How to increase the service life of precision bearings

　　1. Selection and operation of the dimensional tolerance of the shaft and precision bearing chamber: After the precision bearing is pressed into the precision bearing, it should be able to rotate easily without sliding. If it is obviously inconvenient to rotate, the size of the shaft is too large, please reduce the dimensional tolerance. After the precision bearing is pressed into the shaft, if it is easy to rotate and there is an obvious "loose" feeling, the dimensional tolerance of the shaft may be large, or the concentricity of the shaft may be poor.  

　　2. Installation method of precision bearings: Since bearings are high-precision products, improper installation can easily damage the cross-section of precision bearings. When pressing the shaft, only force is applied to the circle, and when pressing the large circle, only force is applied to the large circle. When installing a standard pneumatic or hydraulic press, if the left and right riveting is horizontal, if deflection occurs, the cross-section of the precision bearing will be damaged by the precision bearing and the wire of the precision bearing will be damaged.

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　　3. Avoid dirt: When the precision bearing is placed on the motor rotor to achieve the dynamic balance of the rotor, the iron pin generated by the dynamic balance of the rotor is easy to be put into the bearing, so keep the rotor in good dynamic balance before installing the bearing. In order to facilitate installation, some manufacturers install oil or vegetable oil in the bearing chamber to achieve the actual wetting effect, but it is difficult for the actual operator to control the amount of oil or vegetable oil in the bearing chamber.

　　4. Prevention of paint rust: The characteristic of paint rust is that it often occurs on closed electric motors. The motor makes very good sounds when installed, but after being placed in the warehouse for a period of time, the sound of the motor becomes very loud, and the bearings are severely rusted when disassembled.

Several ways to prevent rust of precision bearings

　　1) Surface cleaning: The cleaning method should be selected according to the surface characteristics of the anti-rust treated object and the current benchmark. Generally, there are organic solvent cleaning method, organic liquid cleaning method and mechanical equipment cleaning method.

　　2) The surface can be dried and cleaned: compressed dry air with excessive restlessness can also be used to dry with a 120-170c air dryer, and can also be cleaned with a clean emery cloth.

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　　The above introduces how to add precision bearingsThe validity period, if you need to know more, please feel free to contact us!