다울빛 이주여성 연합회

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Bella2021.03.19 16:43
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Free end bearing: used to avoid the expansion and contraction of the shaft caused by temperature changes during operation, and to adjust the axial position of the bearing. It is advisable to choose a bearing that only bears radial load and the inner ring and outer ring can be separated. When using non-separable bearings, a clearance fit is generally adopted between the outer ring and the housing, so that the shaft can be extended and retracted together with the bearing for axial avoidance. Used to avoid the temperature during operation.

The expansion and contraction of the shaft caused by the change and the adjustment of the axial position of the bearing. It is advisable to select a bearing that only bears radial load and the inner ring and outer ring can be separated. When using non-separable bearings, a clearance fit is generally adopted between the outer ring and the housing, so that the shaft can be extended and retracted together with the bearing for axial avoidance. When the fixed end and the free end are not distinguished, when the bearing spacing is small and the influence of shaft expansion and contraction is not large, it will be able to two angular contact ball bearings or tapered roller bearings that can bear axial load are configured on the front or back.

Adjust the axial clearance after installation with nuts or washers. Deep groove ball bearings, angular contact ball bearings, self-aligning ball bearings, cylindrical roller bearings (NJ type, NF type), tapered roller bearings, spherical roller bearings are used for vertical shafts when the fixed end is selected to bear radial load and Bearings with axial load. When the axial load of the axial load bearing is large, the thrust bearing and the radial bearing are used together. In this way, the free end uses a bearing that can only bear radial load to avoid expansion and contraction of the shaft. Fixed-end combined angular contact ball bearings (back combined) double-row tapered roller bearings (37000 type) thrust bearings and radial bearings are used together.
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