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How to properly install low noise bearings
Source: Bearing network time: 2013-01-07
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Low-noise bearing devices and adjustments can also be used to group long-life bearings; the cooperation is more common; the bearing clearance is more common; and it is expected that the cooperative interference will take a smaller value within the possible scale; Deformation of the bearing raceway. Maid 龆逋 鸬 鸬 鸬.
The clearance has a great connection to noise; the ambition is when the bearing is at the highest working temperature; the clearance value is just zero. The method for judging the clearance is too large: the stop condition causes the shaft to be axially displaced; Large fluctuations; large and heavy turbid noises are declared at work.
If it is a screaming sound that announces annoyance at work; it clarifies that the preload of the bearing is too large; the bearing has a large pre-interference; the pretension should be slightly relaxed. If the clearance is too large, the two bearing rings can be The axial direction is slightly opposite to the offset: it not only reduces the play but also increases the axial rigidity; it can reduce the bearing noise.
When the roll body enters the no-load zone, it will slip or make left and right sway; this will increase the noise and cause wear; while the small clearance and large axial stiffness can eliminate this appearance. However, the clearance cannot be exceeded. The dew skirt is faded.
Sometimes because the working temperature of the main engine is very large; or the scale of the shaft and the seat hole is very discrete; it is impossible to obtain a proper clearance when it is set at one time; in this case, the elastic constant pressure preload can be selected for the outer ring of the bearing. Tight method.
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