How to Select Bearings for High-Speed Magnetic Bearing Motors

Selecting bearings for a high-speed magnetic bearing motor requires more than matching the shaft diameter and bearing size.

Engineers should evaluate the complete application, including the rotor, shaft, housing and operating conditions.

1. Bearing Type

   Deep groove ball bearings and angular contact bearings can be selected according to radial and axial load requirements.

2. Rotational Speed

   High speed can increase friction, heat generation and dynamic effects. The bearing should be suitable for the required operating speed.

3. Load

   Determine radial, axial and combined loads, including possible transient conditions.

4. Clearance and Preload

   Internal clearance and preload can affect running stability, friction, temperature and bearing life.

5. Precision

   Dimensional accuracy, running accuracy and manufacturing consistency can be important in precision motor applications.

6. Lubrication and Coating

   Lubrication should match the speed and operating environment. For specialized applications, MoS₂ coating on the inner and outer rings may also be considered.

7. Installation

   Shaft accuracy, housing accuracy, fits and alignment should be evaluated together with the bearing.

Beining Technology develops precision deep groove ball bearings, angular contact bearings and customized bearing solutions for high-speed applications.

Related: MoS₂ Coated Bearings | High-Speed Bearing Performance | Custom Bearings

Contact Beining Technology for application-specific bearing evaluation.

Website:
https://www.precisionball-bearing.com/