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Through the correct judgment NTN forklift bearing abnormal noise processing method
by:Waxing
2020-08-25
Let me teach you a good way is by listening to the sound judgments of NTN bearing fault, the first we have to in a quiet environment, and then carefully listen to the voice of the forklift bearings.
And bearing as the focus of attention, because it is the most important of all the machines in rotating parts, bearing condition monitoring is an important part of the preventive maintenance, examples with the aid of electronic stethoscope to check that a certain parts of abnormal noise was experienced operator use.
1, oil bath lubrication oil bath lubrication is the most common method of bearing lubrication is suitable for low and medium speed bearing lubrication.
Immersion in the slot, part of the NTN bearing lubricating oil by the forklift bearing parts of rotation, and then flow back to the oil level of oil tank should be slightly lower than the lowest at the center of the roller.
2, 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.
3, circulating oil lubrication oil pump will filter the oil transfer to the NTN bearing parts, through the bearing lubricating oil filter cooling after use.
Because of the circulating oil can take away a certain quantity of heat, cooling the bearing, therefore method is suitable for high speed forklift bearing parts.
4, spray lubrication with dry compressed air 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.
5, spray lubrication oil pump will come into your import bearing high pressure oil through the nozzle, into the bearing of the forklift bearings at the other end into the oil in the tank.
In the high speed rotates, NTN bearing roller 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.
If we after many auditions will find forklift bearings in good operation condition will be low purring sound, if a sharp hiss sound bearing, make sound, usually said bearings and other irregular in poor operation condition.
If because of the installation caused by hitting scar also can produce noise, the noise will be along with the NTN bearing rotating speed of high and low.
If there is intermittent noise, said rolling parts may be damaged, forklift bearing this voice is happens when the damaged surface is rolled out, this is the method of using sound judgment bearing failure, as long as we find fault also repaired.
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