When the precision spindle bearing is matched with the spindle and the bearing seat, it must be fixed in different positions in the axial/axial and axial (radial) directions. The axial precise positioning of the bearing is generally completed by the nut, the collar, the bearing end cover, the spacer, the elastic ring and the port of the adjacent parts. The axial and axial precise positioning of the bearing is generally completed by the nominal diameter of the bearing and the shaft, the diameter and the inner hole of the bearing. For precision spindle bearings, in order to ensure their excellent dimensional accuracy and rotational accuracy, it is reasonable to prevent excessive clearance fits, so as to avoid ring throwing deformation due to large interference, resulting in loss of bearing accuracy. On the other hand, for fast bearings with a dmn value exceeding 1.0X10 6mm.r/min, if the inner ring and the shaft are not properly matched, when the bearing is running at high speed, the inner ring will expand outward due to the effect of centripetal force, resulting in a gap between the inner ring and the shaft. The expansion of the gap may cause peristalsis, friction and damage between the inner ring and the mating shaft. Therefore, special attention must be paid to the fit of the bearings of the high-precision spindle. Only when the torque is accurate can the rotation be stable! http:///products/jczzzc.html
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