INA self-aligning ball bearing the abnormal damage of countermeasures

Contact fatigue failure refers to the INA bearing working surface under the role of alternating stress and failure. Contact fatigue spalling occurred in bearing working surface, often accompanied by fatigue crack, first of all, from the maximum cyclic shear stress under contact surface produce & shy; , and then extended to form a different flake shape, such as dot to pitting corrosion or pitting spalling, peel into small sheet according to the shallow flaking. Due to spalling surface expands gradually, and often to deep extension, forming deep spalling. Deep spalling is & shy; Contact fatigue failure of fatigue source. Refers to the relative sliding friction between the surface abrasion failure lead to constant wear and tear of the working surface of the metal and the failure. Continuous wear will cause INA bearing parts damaged, gradually and eventually result in the loss self-aligning ball bearing dimensional accuracy and other related issues. ­ Wear may affect the shape change, the increase of fit clearance and working surface morphology change, may affect the lubricant or make its pollution to a certain degree of lubrication function is lost, so that loss of bearing rotating accuracy and even can't is & shy; Often work. 1, bearing of maintenance, repair, and exception handling for as long as possible in good condition to maintain the performance of the self-aligning ball bearing was required to maintain, repair, in order to prevent accident arrangement to ensure the reliability of operation, improve the productivity and economy. To maintain the best conditions of mechanical operation of the corresponding operation standard, on a regular basis. Contents include, monitoring operation status, supplement or replacement of lubricants, remove the check on a regular basis. As maintenance issues in the operation, the rotation of the INA bearing state of sound, vibration, temperature, lubricant and so on. 2, bearing damage and countermeasure of general, if the proper use of INA bearings, can be used to achieve fatigue life. But there will be unexpected injury prematurely, not resistant to use. This early damage, as opposed to a fatigue life, is called the quality using limit of fault or accident. Much due to the installation, use, do not pay attention on the lubrication, intrusion of foreign bodies from outside, to the shaft, shell heat affected study enough. About bearing damage status, such as: roller bearing ring guard card, as a reason to consider, lack of lubricant, not suitable for, for the defect of oil discharge structure, foreign invasion, self-aligning ball bearing installation error, the deflection of the shaft is too large, also can have these reasons. Therefore, only investigate bearing damage, the real reason is hard to come by injury. But, if you know the bearing on the use of machinery, the structure of the surrounding conditions of use, INA bearing, understanding before and after the accident, in combination with several damage status and causes of self-aligning ball bearings, can prevent the similar accident happen again.