Adjustment of Spindle Rotation Accuracy of Planetary Reducer

If the machining error of the spindle itself meets the requirements, the rotation accuracy of the reducer spindle is generally determined by the bearing. The key to adjusting the rotation accuracy of the spindle is to adjust the bearing clearance.

Maintaining a proper bearing clearance is critical to spindle component function and bearing life.

For rolling bearings, when there is a large gap, not only will the load concentrate on the rolling body in the direction of force, but also serious stress concentration will occur at the contact of the inner and outer ring raceways of the bearing, shortening the bearing life, It will also cause the spindle center line to drift, which is easy to cause the spindle components to vibrate.

Therefore, the adjustment of the rolling bearing must be preloaded, so that a certain amount of interference occurs inside the bearing, and then a certain elastic deformation occurs at the contact between the rolling body and the inner and outer ring raceways, thereby improving the stiffness of the bearing.