GBS Bearing CO.,LTD.

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How to ensure that the bearing does not produce a large defo

Release date:2020-6-11

In order to ensure that the bearing in the installation does not produce a large deformation, must do the following five points:

1, the installation of roundness and squareness of shaft and hole shoulder according to the corresponding precision bearings to requirements;

2, not only to calculate the amount of interference with the rotating ring, but also the accurate calculation of ring with appropriate amount;

The rotating ring of burning of interference within the possible range should be made smaller. As long as the thermal expansion of the working temperature is ensured, and the influence of the centrifugal force at the highest speed, it is not caused by the movement or sliding of the surface. Ferrule is fixed according to the load size and bearing size selected minimum clearance fit or interference fit, because too loose or too tight is not conducive to maintain the original precise shape.

3, the bearing under the condition of high speed operation, high working temperature should be special attention to the support of rotating rings can not be too loose, to prevent the emergence of the eccentric vibration, and fixed rings with no gaps, to prevent the ring under the load deformation and vibration excitation.

4, on the fixed ring take peccadillo fit conditions is both sides of the surface of the match has very high shape precision and low roughness, otherwise the result of difficult installation and removal more difficult. In addition, there is a need to consider the influence of spindle thermal elongation.

5, to use a pair of double contact ball bearing spindle. Because it is half load lighter, with the amount of interference such as too large, is the internal axial preload will obviously on the high side, will adversely affected. Use of double row short cylindrical roller bearings and tapered roller bearings spindle, its load is relatively large, so it is also relatively large surplus.