1, the installation and adjustment of the low-noise NSK Bearings can also follow the example of long-life group NSK Bearings, makes with the interference more or less uniform size, NSK bearing clearance is also more consistent, and hope that the interference with the extent possible, whichever is lessvalue, to ensure that the NSK bearing raceway deformation is small, thus rolling the body through the noise caused by the smaller.
2, the clearance on the noise, the ideal state is when the NSK Bearings is the maximum temperature of operation of the state, the clearance value is exactly zero. The clearance is large judgment: a static state so that the axis for the axial displacement, the magnitude of its reciprocating operation to send a large muddy noise.
3, if the issued operation hate the shrill whistling, then the preload is too large NSK Bearings, NSK bearings have relatively larger pre-interference, it should be slightly relaxed pretension level. If the clearance is two NSK bearing ring can make a little along the axial relative position: not only reduces the clearance, but also increases the axial stiffness can be reduced NSK bearing noise.
4, the rolling body will slip into the no load zone or around a rocky ledge, then it will increase the noise can also cause wear and tear, a small clearance and axial stiffness can eliminate this phenomenon. Clearance can not be too small, so as not to cause the temperature is too high, and shortened life expectancy.
5, and sometimes the host operating temperature range, or the shaft and housing bore dimensions discrete large, not once it is set to get the appropriate clearance, in this case, the adoption of a flexible outer ring for NSK Bearings constant pressure preload method.
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