Basic principles for selection and application performance of fag oil-free bearing

 space and position of the machine occupied by the bearing

• In mechanical design, the size of the shaft is generally determined first, and then the rolling bearing is selected according to the size of the shaft. Usually, ball bearings are used for small shafts and roller bearings are used for large shafts. 
• However, when the bearing is limited in the diameter direction of the machine, needle roller bearings, ultra light and ultra light series ball or roller bearings are selected; When fag oil-free bearing is limited in the axial position of the machine, narrow or ultra narrow series ball or roller bearings can be selected.Basic principles for selection and application performance of fag oil-free bearing
• • the magnitude, direction and nature of the load on the bearing
• Load is the main factor in selecting oil-free bearing. Roller bearings are used to bear heavy loads, ball bearings are used to bear light or medium loads, and bearings made of carburized steel or bainite quenching can bear impact and vibration loads.
• In terms of load direction, deep groove ball bearing, cylindrical roller bearing or needle roller bearing can be selected when bearing pure radial load. When bearing small pure axial load, thrust ball bearing can be selected; 
• When bearing large pure axial load, thrust roller bearing can be selected. When the bearing bears the combined radial and axial load, angular contact ball bearing or tapered roller bearing is generally selected.Basic principles for selection and application performance of fag oil-free bearing
• • bearing centering performance
• When the center line of the shaft is different from the center line of the bearing seat, there is an angle error, or the rigidity of the shaft is small due to the large distance between the two supports of the shaft, which is easy to bend or tilt under force, the self-aligning ball or self-aligning roller bearing with good self-aligning performance and outer ball bearing can be selected. This type of bearing can maintain normal operation when the shaft is slightly tilted or bent.
• The amount of work required depends on whether you have similar bearing matching experience. When there is a lack of experience, special requirements, or special consideration needs to be given to the cost of bearing configuration and any other subsequent shape, more work needs to be done, such as more accurate calculations and / or tests.
• In the chapter following the comprehensive technical introduction, the designer of oil-free bearing configuration will see the necessary basic information provided in the order of general requirements. 
• Obviously, it is impossible to include all the information required for every conceivable fag bearing application. For this reason, we will mention comprehensive application engineering services in many places, including technical support for correct selection of bearings and how to conduct complete bearing configuration calculation. 
• The higher the technical requirements for bearing configuration and the more limited the experience of using bearings in specific applications, the more this service should be utilized.Basic principles for selection and application performance of fag oil-free bearing