Finished grinding for bearing rings are not allowed to have burned and grinding cracks exist, especially the screwdriver on the mating surfaces of the inner ring may not be burned. Rings after pickling, and excised burn, severe burns not rework or repair is not eligible should be scrapped, Assembly process of grinding burn rings are not allowed to enter. before the inflow into the ring after grinding of steel, each process must be strictly regulated, a sharp distinction between GCr15 two different materials and GCr15SiMn materials and products. 、
NSK bearing is to can judge is under various needs considered of injury of degree, and in this area main considered of is injury of effect, for machinery area of performance, importance, installed of conditions are is needs considered, to next maintenance of during and decided of effect, but for defects is cannot in using of situation, must is replaced new of bearing, for within ring, and outer ring, and scroll body, and keep frame of any a Shang has crack of gap are is to note, this is in this area keep of a effect 's. So the sense is also a skillfully, here are the eight points to introduce rules.
After rolling bearing under load, plastic deformation at the rolling elements and raceways contacts. When too heavy a load, in the formation of Raceway surface plastic deformation pit, NSK bearings in operation in the summer strong vibrations and noise.
Due to the relative motion of the rolling elements and raceways, and intrusion of dirt dust, wear the surface of the rolling elements and raceways. When you wear a large, increased bearing clearance, noise, vibration, reducing the running accuracy of NSK bearings, thus directly affecting the precision of the host. NSK bearing used in precision machinery, available to qualified life of NSK bearings wear.



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