Talking about the pre-tightening mechanism of the rolling bearing

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Talking about the pre-tightening mechanism of the rolling bearing

Source: China Bearing Network Time: 2013-05-11
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The so-called bearing pre-tightening is to use a certain method in the bearing to maintain and maintain an axial force; to eliminate the axial clearance in the bearing; and the initial deformation of the rolling body and the inner and outer ring touch. Pre-tightening When the rear bearing is subjected to the working load; the radial and axial relative movement of the inner ring is much longer than that of the untensioned bearing.
Common pre-tensioning devices are:
1) pre-tighten the outer ring of a pair of tapered roller bearings,
2) Preload with a spring; can obtain a stable preload,
3) Preloading the sleeves of different lengths in a pair of bearing centers; the pre-tightening force can be controlled by the length difference between the two sets of quotients;
4) Clamp a pair of narrowed outer rings to pre-tighten. When reverse-mounted, the inner ring can be narrowed and clamped. This special pair of angular contact ball bearings can be supplied by the manufacturer. In the rolling bearing sample, it is possible to find the pre-tightening load values ​​of the light, medium and heavy three series of angular contact ball bearings of different types and the corresponding inner or outer ring.
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