KOYO bearing rated load in operation

Is the main factor influencing the quality of bearing material metallurgy rolling bearing early failure. With the progress of metallurgical technology ( Such as bearing steel, vacuum degassing, etc. ) , improve the quality of the raw materials. The proportion of raw material quality factor in KOYO bearing failure analysis has declined obviously, but it is still one of the main factors of bearing failure. Choose proper is still bearing failure analysis must be considered. Bearing manufacturing through forging, heat treatment, cutting, grinding and assembly process operation. The rationality of the processing, advanced, stability will also affect the service life of bearing. Influence of KOYO bearing heat treatment and grinding process, often associated with bearing fault more direct relationship with product quality. In recent years, the deterioration of the surface layer of the bearing show that the grinding process is closely related to the bearing surface quality. KOYO bearing service life analysis based on a lot of background material, is the main task of the data and failure mode analysis, find out the main factors of bearing failure, therefore, put forward the improvement measures, prolonging bearing service period, in order to avoid sudden bearing early failure disease. Dynamic operation, from the beginning of the no-load speed, slowly up to the rated operating conditions. Test run to check the items, whether there is abnormal sound, the change of bearing temperature, lubricant leakage or discoloration, and so on. If discovery is unusual, should immediately stop, check machine, when it is necessary to remove the bearing inspection. 1, under a certain load bearing life, KOYO bearing in case of pitting experience before the revolution or hours, known as the bearing life. Due to the manufacturing precision, material uniformity degree of difference, even the same material, same size with a batch of bearings, under the same working conditions, its lifespan is not the same. Life if the statistics for 1 unit, the longest relative life is 4 units, the shortest is 0. 1 - 0. 2 units, the ratio of the longest and the shortest life expectancy of 20 - 40 times. To determine the standard of KOYO bearing life, bearing life and reliability. 2, rated life the same specifications ( Type, material, process) A batch of bearings, under the same working conditions, 90% of the bearings do not produce pitting, experienced revolutions or hours called bearing rated life. 3, the basic dynamic load rating for KOYO bearing of the bearing capacity of the pitting, regulations bearing rated life expectancy of one million RPM ( 106). , can withstand the maximum load as the basic dynamic load rating, expressed as a C. Is KOYO bearings under the action of dynamic load rating C, this kind of bearing one million RPM ( 106). Pitting failure does not occur and reliability was 90%, the greater the C higher bearing capacity. The basic dynamic load rating ( 1) The centripetal bearing refers to the pure radial load ( 2) Thrust ball bearing is refers to the pure axial load, 3) Angular contact bearing is refers to produce pure radial displacement of the radial component