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common problems

common problems

Giving bearings a longer life cycle

07

2023

-

10

What is the required accuracy of motor bearings

Motor bearings, as an important part of the drive system, require stable accuracy in use.The accuracy class of motor bearings is generally P5 or P4.Among them, the limit values of P5 grade accuracy are 3um for the deviation of bearing ID and OD respectively, and 2um for the deviation of bearing width; the limit values of P4 grade accuracy are 2um and 1.5um, 1.2um respectively.

I. Motor Bearing Precision Requirements
Motor bearings, as an important part of the drive system, are required to have stable accuracy in use.The precision level of motor bearings is generally P5 or P4.Among them, the limit value of P5 grade accuracy is 3um for the deviation of bearing inner diameter and outer diameter respectively, and 2um for the deviation of bearing width; the limit value of P4 grade accuracy is 2um and 1.5um, 1.2um respectively.

Second, motor bearing selection
The selection of motor bearings should be based on the actual application requirements.Usually need to consider the factors include: bearing load, operating speed, use of the environment and installation methods.At the same time also need to be combined with the motor used in the transmission components (such as pulleys, couplings, etc.) of the specifications for the selection of parameters to ensure the overall performance and reliability of the system.

Precautions for the use of motor bearings
1. Motor bearings should be kept neat and tidy during use and should be installed and adjusted in strict accordance with the installation procedures. 2.
2. motor bearings should be preloaded before use to ensure the geometric accuracy and friction characteristics of the bearings.
3. The condition of the motor bearings should be inspected regularly during use and replaced promptly if any abnormality is found.Attention should also be paid to the maintenance of bearing lubrication and sealing. 4.
4. If the motor bearing is overheated, noisy and other abnormalities, it should be stopped in time for inspection to ensure the normal operation and safety of the system.

Conclusion
As an important part of the motor drive system, motor bearings require high precision and are generally selected as P5 or P4 grade precision bearings.In the process of selection and use, it should be selected and maintained according to the actual needs to ensure the overall performance and reliability of the system.

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