Various types of bearings have different characteristics due to their different designs. Due to the variability and complexity of bearing installation sites and application occasions, there is no fixed mode to choose bearing types. In order to adapt to the specific installation position and application conditions of a certain host for bearing type selection, experts suggest that the following factors be considered comprehensively:

1. The speed

The working speed of rolling bearings mainly depends on its allowable operating temperature. Bearings with low friction resistance and less internal heat are suitable for high-speed operation. When only bearing radial load, using deep groove ball bearings and cylindrical roller bearings can achieve higher speed, if bearing combined load, should choose angular contact ball bearings. Specially designed high-precision angular contact ball bearings can achieve extremely high speed. The speed of all kinds of thrust bearings is lower than that of radial bearings.

2. Rotation speed

For the majority of machinery, choose a level 0 tolerance of bearing is enough to meet the requirements of the host, but on the axis of rotation accuracy have strict requirements, such as spindle, precision machinery and instrument etc., should choose high tolerance grade of deep groove ball bearings, angular contact ball bearings, tapered roller bearings, cylindrical roller bearings and thrust angular contact ball bearings.

3. The rigid

The rigidity of a rolling bearing is determined by the amount of elastic deformation that occurs when it is under load. In general, such deformation is small and can be ignored, but in some machinery, such as machine tool spindle system, the static stiffness and dynamic stiffness of the bearing have a great influence on the characteristics of the system. Generally speaking, roller bearings have higher stiffness than ball bearings. Various types of bearings can also improve rigidity to varying degrees by properly “pretightening”.

If you have anyq questions,pls feel free to contact us.

e-mail:bearing6@hyzcgroup.com