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【 Jiaxing bearing small knowledge 】 Most people are wrong bearing installation problem, do you have?
by:Waxing
2020-11-19
There is rotational, have HRB bearing (
)
Jiaxing bearing group sales co. , LTD. (
The company)
Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center.
Correct installation bearing, is about to the service life of bearing, so we must pay attention to, this article to introduce correct installation bearing five steps in detail, hope will be helpful to your work.
A, use bearing remove the special tool advanced installation tools, to avoid the installation bearing damage caused by the tool and the improper operation.
For example, when installing the bearing, the staff used copper bar type method, easy cause uneven bearing axial force, cause cage deformation, rolling body is impaired, clearance, and copper bar in the tapping process, at the end of copper into bearing cage, easy to cause bearing failure.
Second, before the installation check bearing for the old bearings, need to check the ball (
Column)
The existence of burr, scratch, crack surface.
The old bearing radial clearance, axial clearance is unqualified, generally only measure the radial clearance.
For the new bearing, the first to check the bearing type is correct.
Rolling bearing radial clearance of the standard reference to table 1.
For example: the model 6318 deep groove ball bearing, bearing inner diameter 90 mm, the radial clearance range of 0.
016-0.
046 mm, also can check the bearing maximum erosion rate is 0.
25mm。
Third, check the bearing and the matching of the rotor shaft size motor assembly, still need to carefully check the bearing installation bearing and the matching of the rotor shaft size, with the bearing outer ring and the end cover hole size.
Four, good control of bearing and bearing the number of indoor oil bearing and oil in the amount is too much, will cause bearing roller skid, caused by the rolling friction sliding friction and rolling body damage bearing roller, because of the excessive amount of oil bearing, bearing in the free space is small, the operating temperature of the bearing will rise, grease hz degree is reduced, the lubricating oil film thinning, roller, and the bad lubrication condition is easy to cause bearing different sound, surface smooth, shorten the service life of bearing.
General motor end cover side is equipped with the bearing oil chamber (
Designed to be double sealed bearing motor exception)
, according to the motor rotation speed, bearing chamber can note oil can refer to the following standards: motor speed 3000 r/min, should be less than or equal to 1/3 of the bearing capacity.
In the process of practical work, for bearing high temperature and high speed operation, should use less as far as possible with a sealing surface bearing, increase electricity oil cover remaining oil, and furnish the fitting, can improve the operating life of motor bearing.
5, pay attention to ensure insulation in good condition for the insulation design of the bearing outer ring, need to pay attention to ensure insulation in good condition.
If damaged bearing insulation when installation, thin oil film bearing will be shaft voltage breakdown, oil film after the breakdown, not only make the roller lubrication conditions, at the same time the edm will form electric erosion of rolling element bearings, roller surface caused by not only, and accelerate the wear of the bearing.
If you are more than HRB bearing the author introduces the bearing inspection and replacement of interest or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors.
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Editor: jiaxing bearing sourcing consultant LTD. All rights reserved,
The company)
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