Introduced by the method of lubrication troubleshooting SKF bearing heating - bearing knowledge

by:Waxing     2020-05-27
There are several kinds of imported bearing lubrication way, and the type of bearing and various types of bearings in the use of lubrication is not the same, so that more conducive to SKF bearing service life to maximize, is the performance of the mechanical equipment is in a state of maximum efficiency, oil lubrication: 1 is an important characteristic of lubricating oil viscosity, viscosity directly affect the liquidity of lubricating oil and the size of the friction surface is formed between the oil film thickness, SKF bearing working temperature of lubricating oil viscosity is usually 12 - 15cst。 Speed the Gao Yingxuan lower viscosity, the more load weight should choose high viscosity. Commonly used lubricating oil has high-speed machine oil, machine oil, turbine oil, compressor oil, transformer oil, cylinder oil, etc. Oil lubrication methods include: a. Oil bath lubrication oil bath lubrication is the most common lubrication method, suitable for low, medium speed, bearing lubrication, bearing part of immersion in the slot, the bearing parts of lubricating oil by rotating, and then flow back to the oil level of oil tank should be slightly lower than the lowest at the center of the roller. b。 Oil drip lubrication oil drip lubrication is suitable for need to ration oil bearing parts, drip oil every 3 - general A drop of it is advisable to 8 seconds, too much oil will cause the bearing temperature increased. c。 Circulating oil lubrication oil pump in the conversion of the filter oil transfer to the bearing parts, through the bearing lubricating oil filter cooling after use. Due to the circulating oil can take a certain quantity of heat, cooling the bearing, therefore method is suitable for high speed bearing parts. d。 Spray lubrication with dry compressed air after the sprayer and lubricating oil mixed form oil mist, spray bearing, can effectively make the bearing cooling airflow and can prevent the intrusion. This method is suitable for high speed, high temperature lubrication bearing parts. e. Spray lubrication with oil pump nozzle shot into the bearing, the oil in the high pressure into the bearing of the bearing at the other end into the oil in the tank. When bearing at high speed, rolling element and cage with high rotate speed makes the surrounding air, the air in general it is difficult to be sent to the bearing lubricating oil lubrication method, then must use the method of high-pressure jet spray the lubricating oil to the bearings, the position of the nozzle should be placed between inner ring and retainer center. Bearing is fixed in mechanical parts, is the main part of the machinery, its role is basically used to keep the shaft center position, and to control the movement of the parts. SKF bearing has a vital role in any machine, if have no bearing, machine can't work. , many users are reflected in the use of imported bearings, bearing the faults of fever is the most common, the failure can also affect the SKF bearing's life and property. So, this fault is formed? Below, it is stated the knowledge for everyone. 1, the oil level is too low, the lubricant from the loss of oil seal; 2, bearing grease in the completely filled or oil level is too high. This can lead to lubrication excessive mixing, produce the high temperature or the oil; 3, contact type ( Friction) Oil seal is too dry or spring too tight; 4, bearing hole is not in the round; Bearing box distortion; Bearing surface is not smooth; Cases of hole diameter is too small; 5, contact type ( Friction) Oil seal is too dry or spring too close, and so on.
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