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For long-term storage, it is advisable to store it on a shelf 3cm above the ground under the condition that the humidity is lower than 65% and the temperature is about 20 ° C. In addition, the storage place should avoid direct sunlight or contact with cold walls.
Installation of bearing
1. Preparation of bearing
As the bearing has been treated with rust prevention and packaged, do not open the package until the temporary installation. In addition, the antirust oil coated on the bearing has good lubrication performance. For bearings in general or filled with lubricating grease, it is not necessary to clean them. However, for instrument bearings or bearings rotating at the speed of ⽤, clean the antirust oil with clean cleaning oil. At this time, the bearings are easy to rust and cannot be placed for a long time.
2. Inspection and cleaning of shaft and housing, and confirmation of scars or burrs left by mechanical addition. There must be no abrasives (SiC, Al2O3, etc.), molding sand, cutting, etc. in the shell. Secondly, check whether the ruler, shape and weight of the shaft and shell conform to the drawings.
As shown in Fig. 1 and Fig. 2, measure the shaft diameter and housing diameter at the dividing point. Also, carefully check the perpendicularity of the round ruler and the shoulder between the shaft and the housing. Before installation, apply the coating on each fitting between the shaft and the housing that passes the inspection
The installation method of bearing varies according to the type and matching conditions of bearing. Since most of the rings rotate on the shaft, the inner ring and outer ring can adopt interference fit and clearance fit respectively. When the outer ring rotates, the outer ring adopts interference fit.
The bearing installation methods for interference fit can be mainly divided into the following types, which are detailed in the following table:
Cold shrink installation: the method of installing bearings by cooling them with ice. At this time, the air separator in the air separator will condense on the bearing, so appropriate anti rust measures need to be taken.
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