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The method of judging "Can the INA bearing be available"

Source: China Bearing Network Time: 2012-12-30

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At the top of the list; when the INA bearing is announced to be uniform and successive "å’å’" this movement occurs by the rotation of the roll in the table; including irregular metal oscillations independent of the speed. Usually expressed as grease in the bearing Lack of quantity; should be compensated. If the equipment stops for too long; especially in the low temperature conditions in winter; sometimes the operation of the "sand sand" is announced in the bearing operation; this becomes smaller with the radial clearance of the bearing, the grease needle The penetration is reduced. The bearing clearance should be properly adjusted; replace the new grease with a larger penetration.
Secondly, it was found that the INA bearing declared a uniform periodic "å—¬" in the successive "å“—å“—" sounds because the rolling body and the inner ring raceway were caused by scratches, grooves and rust spots. The period of motion and static is proportional to the speed of the bearing. The INA bearing should be replaced.
Thirdly, when there is an INA bearing that announces that the "stalk" is not connected, the movement is caused by the break of the cage or the inner ring. It is necessary to stop the bearing immediately.
Fourth; when the bearing is found to be irregular, uneven "åš“åš“" this movement is caused by falling into the iron filings, sand particles and other impurities in the bearing. The dynamic and static strength is more than the core. Add fat or change oil.
Fifth; seeing the INA bearing announced in the operation, the irregular "shasha" movement is usually associated with the inner ring of the imported bearing and the shaft is loose or the outer ring and the bearing hole are too loose. When the static and dynamic strength is large; The joint contact of the bearing should be checked; the problem should be repaired in time.
Whether the INA bearing can be used or not; mainly consider the degree of bearing damage, mechanical properties, importance, working conditions, and the time to the next inspection. If there are the following shortcomings, it can no longer be used; it is necessary to replace the new bearing. There are cracks or gaps in any of the ring, outer ring, roll body and cage.
.1) Any crack on the ferrule or roll body.
.2) There are significant jams on the rolling track, ribs and roll.
.3) The cage is worn significantly or the rivet is significantly loose.
.4) There is rust on the raceway surface and the rolling body; there is injury.
.5) There are severe indentations and marks on the raceway surface and the rolling body.
.6) There is significant creep in the inner diameter surface of the inner ring or the outer diameter surface of the outer ring.
.7) The discoloration due to heat is significant.
.8) Bearings sealed with grease; damage to seals or dust caps is significant.

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