How to Choose the Mindball Bearing Model

The centering ball bearings are mainly subject to radial loads, while at the same time can withstand smaller axial loads. The axial displacement of the shaft (shell) is limited to the limit of the play, has automatic adjustment performance, allows the internal and peripheral relative lying conditions to work normally, the center-center ball bearing model is fully applicable to the support seat hole can not strictly guarantee the coaxial degree of the components. The range of mind-adjusting ball bearing models is widely available, and the following factors can be taken into account when selecting them, so as to make a choice.

1. The size, direction and nature of the load: ball bearings are suitable for light load, roller bearings are suitable for heavy loads and impact loads. When rolling bearings are subject to pure axial loads, thrust bearings are generally used, when rolling bearings are subject to pure radial loads, generally use deep groove ball bearings or short cylindrical roller bearings, when rolling bearings are subject to pure radial loads, there is a small axial load, the option of deep trenching is available Ball bearings, angle contact ball bearings, conical roller bearings and centering ball or center roller bearings, when the axial load is large, the choice of angle contact ball bearings and conical roller bearings with large contact angle, or the choice of center bearings and thrust bearings combined, This is particularly appropriate when very high axial loads or special requirements require greater axial rigidity.

2. Allowed speed: There are significant differences depending on the type of bearing. In general, bearings with little friction and less heat are suitable for high speeds. Design should be designed to make rolling bearings work at temperatures below their limits.

3. Rigidity: When the bearing is under load, the bearing collar and rolling body contact will produce elastic deformation, the amount of deformation is proportional to the load, and its ratio determines the size of the bearing rigidity. The rigidity of the bearing can generally be improved by the pretension of the bearing, in addition, in the bearing support design, the combination and arrangement of bearings can also be considered to improve the bearing support stiffness.

4. Minding performance and installation errors: bearings are loaded into working positions, often due to manufacturing errors caused by poor installation and positioning. This is often due to the shaft of the deflection and thermal expansion and other reasons, so that the bearing to bear excessive load, causing early damage. Auto-adjusted bearings are suitable for this type of bearing by overcoming defects caused by installation errors on their own.

5. Installation and removal: conical roller bearings, roller bearings and conical roller bearings, etc. , belong to the inner and outer ring can be separated bearing type (i.e. so-called separation bearings), easy installation and removal.