How to judge whether INA bearings available

Now that you have to understand the INA bearing voices under normal condition, then we can according to these as a standard to determine the cause of the abnormal situations: first, when heard the INA bearing uniform and continuous 'hissed. ' this sounds in internal and external figure by roller rotation, contains a metal has nothing to do with the speed of irregular vibration noise. General performance for the bearing inner fatliquoring quantity is not enough, should be added. If the equipment downtime is too long, especially during the winter low temperature circumstances, bearing during operation sometimes rustling 'hissing sound, with the bearing radial clearance to smaller and smaller work grease penetration. Should be appropriately adjust bearing clearance, replacement penetration bigger new grease. Second, when they see the INA bearing continuous 'sound' sound in the homogeneous periodic 'wow' the sound is due to the rolling element and the inner and outer ring raceway there scars, grooves, rust spot. Sound cycle is proportional to the speed of the bearing. INA bearing for replacement. Third, when there is INA bearing a discontinuous 'terrier infarction' this sound is due to cage or inside and outside the circle to crack. Must immediately stop the change of bearing. Fourth, when found bearing a irregular and uneven 'scrape' the sound is due to the bearing inner into the iron filings, sand and other impurities. Sound intensity is small, is not connected with the revolution. Cleaning should be made for bearing with fat or oil change again. Fifth, see the work of a continuous and irregular INA bearings of the 'rustling' sound general import bearings with inner ring and the shaft fits too loose or outer ring and bearing hole fits too loose. Sound intensity is larger, bearing inspection cooperation relations, found that the problem timely repair. INA bearings is available, mainly considering bearing damage degree, mechanical properties, importance, and operating conditions, to the next overhaul period. If there are the following defects cannot be used again, new bearing must be replaced. Inner ring and outer ring, rolling element and cage on any one have crack or gap. ( 1) Ring, rolling body fracture on any one. ( 2) Rolling on the pavement, guard, rolling body CARDS have a significant injury. ( 3) Cage wear significant or rivet significant relaxation. ( 4) Raceway surface rust, rolling body, injury. ( 5) On the raceway surface, rolling body has serious indentation and playing. ( 6) Inner ring diameter or outer diameter surface has obvious creep. ( 7) Due to the hot color is obvious. ( 8) The bearing grease sealed, sealing ring or dust cover breakage is obvious.