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General steps for selecting rolling bearings

wallpapers News 2020-12-18

There are many types of rolling bearings and a wide range of sizes. In order to select a bearing that is suitable for achieving the design purpose, it needs to be integrated from the mechanical use conditions, the performance requirements of the bearing, the specifications around the bearing to the marketability and economy, etc. analysis.


General steps for selecting rolling bearings

1. Determination of bearing type and configuration. (The reference factors are: bearing installation space; bearing load size, direction and nature; speed; rotation accuracy; noise and friction torque; rigidity; the relative tilt of inner ring and outer ring; installation and disassembly; bearing configuration; market Sex and economy).

2. Determination of bearing size. (Bearing life required by machinery; equivalent dynamic load; equivalent static load; speed; main dimensions of the bearing; basic rated dynamic load; basic rated static load; allowable axial load).

3. Determination of accuracy grade. (Rotation accuracy; noise and friction torque; speed; bearing accuracy).

4. Fit and internal clearance. (The size and nature of the load; the temperature difference during operation; the material, size and accuracy of the shaft and the housing; the fit; the temperature difference between the inner ring and the outer ring; the speed; the preload; the bearing accuracy; the internal clearance of the bearing).

5. Material and type of cage. (Speed; noise).

6. Countermeasures for special environments. (Medium conditions, such as temperature, seawater, vacuum, medicine, dust, gas, magnetic field, etc.; special materials; special heat treatment; special surface treatment; lubricant).

7. Lubrication method, lubricant and sealing device. (Using temperature; speed; lubrication method; lubricant; sealing device; limit the speed of bearing; grease life).

8. Installation and disassembly methods and installation-related dimensions.

9. Final determination of bearing and its surrounding specifications. Finally, a bearing with satisfactory performance is obtained.

ERIC BEARING LIMITED provides high-quality bearings and engineering products from the world's leading manufacturers. As Asia's leading bearing distributor, we enjoy a high reputation among customers. If you have any questions or comments about bearings, you are welcome to contact us for free, and we will reply to you within two hours.


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