combined worm reducer during operation, because the friction living movement causes a change in size, shape and quality between related parts, resulting in wear and tear, increases associated with the gap between the parts. When the gap after more than a reasonable range, only by adjusting the gap between the relative motion to ensure the accuracy of the parts.
Gear reducer spindle rotation accuracy, the premise of the spindle itself, meet the requirements of processing errors, in general, it is largely determined by the bearings. Precision spindle rotation adjustment key is to tune the bearing clearance. Maintain a reasonable amount of clearance bearing on the performance and life of the spindle bearing member is of great significance. For the rolling bearing, a larger gap in the case of work, not only will load is concentrated in the rolling elements in the direction of the force on the top, and in the bearing outer ring raceway contact at serious stress concentration shorten bearing life, but also the spindle axis drift phenomenon, easy to cause vibration spindle member. Thus, the gear reducer must adjust the rolling bearing preload, the internal bearing produce a certain amount of interference, resulting in a certain amount of elastic deformation of the rolling elements and the outer ring raceway contact points, in order to improve the rigidity of the bearing.
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