Channeling the one-sided limit mainly in the position falling off from flaking of the junction of Raceway and ribs are serious band. Reason SKF bearing installation are not in place or sudden axial acceleration load during operation. Take countermeasures is to make sure that the bearings in place or change the free side bearing outer ring combined with a clearance fit, that overload the bearings when the bearing compensation.
Symmetric ring around the ring, with flaking of falling off patrons circle weeks to the symmetrical position spalling (that is, the short axis of the ellipse), the cause is mainly due to the shell-hole separation of two half-ellipse is too large or the shell structure, this is particularly evident in the camshaft bearings for motorcycle. When the bearings onto the oval or large shell holes when you tighten the two halves separated shell, leave bearing outer ring with ellipse, on the short axis of the clearance is significantly lower or even negative clearance. Bearing loads under the action of the week to turn in signs of falling off, only in the short axis of symmetry in the outer ring where signs of falling off. This is the main reason for early failure of the bearing, the bearing failure tests showed that, the bearing outer diameter circle was changed from the original 0.8 μ m for process control 27 μ m. This value is greater than the radial clearance values. Therefore, be sure the bearing is working in a serious distortion and negative clearance, easy to face early rapid wear of abnormal formation and spalling. Taken the countermeasures of improving accuracy of shell holes or shell holes as possible in two separate structures.
1th, bearings of industrial design to consummate with the world-class level, stronger guarantees the quality of its service life. Forging of angular contact ball bearing are subject to strict forged, bearings and bearing equipment such as heat treatment, machining, grinding together of the rigorous process, various processes will affect the service life of the bearing. Which affect the quality of the finished product of angular contact ball bearings, angular contact ball bearings and is directly related to the failure. With continuing advances in detection technology detected on the surface of angular contact ball bearings, grinding process of degenerating layer of fish surface quality angular contact ball bearing a close relationship.
2nd, corner contact ball bearing manufacturing by with of metal lottery, had is effect SKF bearing failure of a main factors, now as metallurgical technology of constantly progress, raw materials crafts made to has is good of improve, material of quality also has greatly of upgrade, now of raw materials quality factors in bearing failure inside has has has obvious of declined has, in at this stage for this problem still is exists of.
3rd, bearing manufacturing of selection is qualified is SKF bearing failure of must to consider of a factors, in usually corner contact ball bearing failure of detection in the main is under large of Beijing material, data analysis, failure environment, forging process, find corner contact ball bearing failure of main factors, and solve off, convenient corner contact ball bearing of constantly optimization, using life, and effectiveness of improve. Extending the service of angular contact ball bearings, avoiding unexpected early failure in bearing. Installation conditions is one of the leading factors in the use factors, angular contact ball bearings are often caused by the installation is not the right set of angular contact ball bearings between the various parts of the stress change, angular contact ball bearings running in an abnormal state and early failure. According to the angular contact ball bearing installation, use, maintenance, maintenance of technical requirements, bearing the burden of the operation load, speed, temperature, vibration, noise monitoring and checks and lubrication, unusual now to find reasons to adjust, bring it back to normal.
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