What Are The Factors To Take Into Consideration For The Selection Of Ina Bearings?

  • 12-04-2019

1, INA Bearing Type Selection: bearing type is usually selected by the user's technical personnel on the basis of the application conditions of the supporting goods and the acceptance load. Business personnel first understand whether the user's practice load is consistent with the selected bearings. If the ina bearings fail to meet the application requests, they should advocate the customer reorganization type as soon as possible, but unless there is usually no doubt about the special goods in the selection type.
2, INA bearing clearance: the user selected in the procurement of INA bearings will usually inform in what type, grade, rarely on bearing clearance requests, it is necessary to ask the business personnel use conditions, which clearly bearing speed, bearing temperature, cooperation in public service are directly related to the selection of INA bearing clearance. Most motors usually choose CM clearance at 3500 turn / sub speeds, such as high temperature and high speed motor, which request relatively large clearance. INA bearing clearance after installation due to expansion of inner hole and the outer circle decreases due to cuts, clearance reduction = X60 60% (bearing chamber is aluminum outside). For example, INA bearings before installation of the clearance is 0.01mm, the installation of interference of 0.01mm, then the INA bearing after the installation of the clearance of 0.004mm. In theory, INA bearing noise in zero clearance and life are best, but in the actual operation of considering the temperature of doubt, INA bearing after installation clearance is 0.002mm-0.004mm better.
3, the selection of oils and fats: the selection of oils is usually based on the speed of INA bearings, temperature tolerance, noise request and starting torque and so on, and requests the salesmen to have a good understanding of the functions of various oils.
4, INA bearing seal type selection: the smooth bearing can be divided into smooth oil and smooth grease. Oil smooth bearing is usually used as the choice of bearings, grease smooth bearings usually use dust cover or rubber seal seal. The dustproof cover is suitable for high temperature or good environment. The seal is divided into two kinds: the touch type and the non touch type. The touch type has good sealing and dust-proof function, but the driving moment is large. The starting torque of the non connected seal is small, but the sealing function is not touched.
INA bearings are now in the automotive motor bearings, motor bearings, bearings, electrical appliances motorcycle motor bearing INA health professional occupation is made, the INA bearing noise and life to reach the best condition.

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