What is the cause of the INA bearing running noise and overheating analysis

When imported bearings under the effect of radial load and oil under the condition of poor performance, will hear a 'kacha, kacha' in the early years of the operation noise, this is mainly due to the rolling element load area after you leave, rolling body acceleration and collided with cage and noise, the crash but as the inevitable operation after a period of time will disappear. Measures to prevent cage noise is as follows: a. To make maintains a stable orbit, should try to adopt ring guide way and note to guide the sufficient lubrication, the tapered roller bearing structure of the high speed working conditions to improve, keeping the L shape of roller guide frame to ring guard guide Z type cage. b。 Bearing at high speed, large imported bearing its cage pocket hole clearance vibration amplitude is greater than small cage pocket hole clearance vibration amplitude, so the pocket hole clearance values are particularly important. c。 Attention should be paid to minimize radial clearance. d。 Try to improve the retention value manufacturing precision, surface quality of the cage, is beneficial to reduce the rolling element and cage collision or friction noise. e. Actively adopt advanced cleaning technology for spare parts and products of thorough cleaning, effectively improve the cleanliness of bearing. 5. Rolling body by importing bearing vibration when under the effect of radial load, its internal only several rolling element load bearing, due to the elastic contact with ring of 'spring' of supporting roller in periodic vibration produced by radial load line, the rotation center so move the vertical or horizontal direction, at the same time cause noise. This kind of vibration is called vibrating roller, especially in the low speed performance is more apparent. And its amplitude and imported bearing type, radial load, radial clearance and rolling element number. If the amplitude is small, usually large amplitude when the formation damage, reduce the radial clearance is often used for this or applying proper pre-load to reduce. ( 1) INA bearing damaged, should be replaced immediately. ( 2) INA bearing grease too little, too much, or has the impurity such as iron filings. Grease bearing capacity should not be more than 70% of the total volume, have impurities should be replaced. ( 3) Shaft and bearing fit too tight or too loose. Should be tight to grinding, must be set to a shaft with too loose. ( 4) INA bearings with end cover too tight or too loose. Too tight when processing the bearing chamber, too loose inside the end cover set steel bushing. ( 5) Two motor end cover or bad bearing cover assembly. Will end cover or bearing cover check into mouth, flat, tighten the screws. ( 6) The belt too tight or bad coupling assembly. Adjust the belt tension, coupling correction. ( 7) Sliding bearing lubricating oil is too little, have impurities or oil ring stuck. Should such as refueling, change new oil, repair or replace the oil ring.