PRODUCT
North shaft bearing: wuling macro light s how much money in clutch bearing pressure
by:Waxing
2020-11-12
In the past due to the short operation time, these shortcomings can not be quickly exposed, after a year or even years of running, feed water pump motor oil leakage phenomenon in a bearing seat.
Mm, interference when assembling, many manufacturers will think that is a question of NSK bearings, through our continuous publicity, motor factory now have realized mainly is a question of insulating varnish.
Harsh operating conditions and maintenance means defects: the process of equipment operation, due to factors such as vibration and temperature changing, cause bearing inner ring and shaft mating surface generation gap, combined with the pressure plate fastening not effectively and timely, cause a relative motion of the mating surface place, cause the shaft wear and tear;
Additional equipment in use process, because the bad working conditions on site, the dust is more, improper lubrication, will increase the bearing running resistance increased, the bearing operating temperature is too high, serious when bearing ablation phenomenon, leading to cooperate with parts of the shaft and bearing torque increases with the relative rotation.
Example: the Z -
—
Stainless steel bearing (
W -
N, relative to the radial vibration and axial vibration processing is more difficult, so we can say this article.
E, all kinds of bearing the major parts of the process: ferrule processing: bearing inner ring and outer ring processing varies according to the difference of the raw materials or blank form.
A gasket, is used to adjust axial clearance, some also use screw or thrust bad adjustment, if the two bearing needle roller bearing in the bearing (
Another bearing fixed on the shaft and bearing seat)
Set aside axial clearance between and side cover, can avoid the above phenomenon.
;
Bearing inner hole, on average, using thermal device can monitor the bearing temperature at any time, and realize e. automatically when the temperature exceeds or stop, prevent burning shaft accidents.
Hydrogenated (
Rubber)
: HNBR/NEM, temperature range: -
~ c;
Hardness: ~;
Characteristics: resist heat, high ductility, corrosion resistance;
Restrictions: not suitable for ultra-low temperature conditions, avoid direct sunlight and erosion.
This kind of bearing a large number of production, low prices, wide use, generally speaking, high speed or low starting torque need to select the high speed parameters of the rolling bearing grease.
According to the different material model of axial fan operating temperature is chosen, sauvy SDH, the material is widely used in degrees Celsius in the environment of equipment wear and tear of various axial fan bearing such as bit wear, bearing chamber wear, etc. ;
。
The main reason for the bearing chamber wear has the following kinds: cooperate with size, mainly depends on the machining error of the result: most of the bearing chamber adopts the basic shaft system with the bearing outer ring, usually cooperate for smaller clearance fit or transition fit.
Bearing clearance/C -
—
Clearance conform to the standards prescribed by the group, the windage is less than group, / C -
—
Clearance conform to the standards prescribed by the group, code omitted, don't say, rinse the whole free stroke, make it meet the requirements
-
mm)
, especially the inner surface of double face grinding, grinding, the grinding is instantaneous cooling water to participate in free status.
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