Choose and use deep groove ball bearing pay attention to the influence of temperature is too high
by:Waxing2020-10-17
For deep groove ball bearing is high precision products, such as improper assembly is easy to cause damage to the TIMKEN bearing channel, result in bearing damage.
When bearing assembly shall have a dedicated mold, not casually, only small circle of stress when pressure into the shaft, pressure can force the circle circle.
Require the use of pneumatic or hydraulic assembly, lower die when being connected to outside the level state, if there are any tilt can lead to bearing channel due to mechanical damage, and make the bearing guide ring.
Bearing when loaded on the rotor to do dynamic balance will easily generated when the dynamic balance of iron into internal TIMKEN bearing, so it is best to install before the deep groove ball bearings to do dynamic balance.
There are some manufacturers in order to convenient assembly, assembly in bearing indoor coated with some oil or grease lubrication effect, but usually operators good amount of it is hard to control, if oil or grease in the bearing interior storing up more, in the bearing rotates along axis to the bearing inside easily.
Bearing is best not to apply oil or grease, if must apply to control shall not be storing up in bearing interior.
Rust paint is characterized by multiple in sealing type motor, the motor sound is very good, when it is assembled but put some time in the warehouse, the motor sound is very big, remove the bearing has serious rust phenomenon.
Before a lot of manufacturers will think is a problem of deep groove ball bearings, through our continuous publicity, motor factory now have realized mainly is a question of insulating varnish.
Acid varnish comes out of the problem is mainly due to the formation of corrosive substances under certain temperature and humidity, the channel after the corrosion result in TIMKEN bearing damage.
The problem now is only to choose good insulating paint, after drying and ventilation assembly after a period of time.
Bearing life is closely related to manufacturing, assembly, use, and must be made at each link to make the TIMKEN bearings in optimum operation state, so as to prolong the service life of bearing.
1.
How to deal with the influence of the bearing temperature is too high,
1)
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(
2)
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Bright, light plate machine by hydraulic mechanical fault indicates the instrument temperature, bearing temperature signal relay action.
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3)
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The thermometer plate (
Inflating the thermometer)
Black stitches overlap or more yellow and yellow needle.
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4)
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Bearing temperature fault signal.
2.
The causes of bearing high temperature phenomenon: (
1)
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It is possible that bearing cooling water, high temperature phenomenon.
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2)
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It is possible that bearing oil degradation, oil itself will not clean the CPC degradation, or run.
Such as moisture in the oil increase can cause the acidity of the oil, can reduce oil lubrication, the bearing shell eroded, causing the bearing temperature rise phenomenon.
3.
Bearing high temperature occurs when handling.
When deep groove ball bearing temperature, the first to determine whether there is an error action, if the temperature is indeed rising, should immediately do the following treatment: (
1)
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Check the cooling water pressure, water flow and pipeline system is normal.
If water is likely to be lower filter blockage, cannot be handled in a timely manner, to stop treatment, when confirm can work, then put into use.
(
2)
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Should be to check if the governor oil pressure, oil pressure is low can lead to cooling water hydraulic valve closed.
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3)
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Check the TIMKEN bearings for different sounds and detect deep groove ball bearings degrees whether there are abnormal.
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4)
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Take oil whether there is a change of color, sample observation and test to see whether metamorphism.
If confirm the degradation new oil should be replaced downtime.
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5)
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Check the oil standard oil level is normal, if abnormal, check that the sump oil discharge valve is shut.
If the matter, should fill oil, if is the sealant mat permeability oil, should stop processing.