The main components of rolling bearing are outer ring, inner ring, rolling body and cage; They have different functions, such as: the inner ring mainly supports the shaft, the outer ring mainly supports the parts or shafting, and the cage: mainly separates the rolling body; It has the advantages of small friction resistance, sensitive starting, high efficiency, simple lubrication and easy interchangeability;
Rolling bearings are widely used in various industries and have many types:
Generally, it is divided into radial bearing and thrust ball bearing according to load direction; According to the shape of rolling body, it is divided into ball bearing and roller bearing; Ball bearings are mainly used for higher speeds and lower loads, while roller bearings are mainly used for higher loads and lower speeds.
Rolling bearing
The methods and steps of general bearing selection: study the bearing working conditions, select the rolling bearing type, calculate the ratio A/R, calculate the equivalent dynamic load, calculate the basic rated dynamic load value of the bearing, select the model according to the sample, and check the service life;
The analysis of working conditions can determine the actual performance requirements of bearings, such as bearing load, bearing speed, bearing centering performance, bearing installation and disassembly, etc
Rolling bearing is a mechanical part that supports rotating shaft with high precision and low friction. It is very important to obtain stable performance for a long time and to avoid the adverse effect of rotating motion on the bearing mechanism!
According to the actual working conditions, "transition fit" or "interference fit" is generally selected for the fit of shaft diameter. In order to avoid the deformation of the outer ring and the inner ring caused by the insertion of the bearing and facilitate the assembly, the "clearance fit" should be selected for the fitting of the bearing fixed seat socket.