How to measure the clearance of the radial thrust bearing

The inner ring of the bearing is tapered and must be matched with the tapered surface of the main shaft. Other bearings should also be noted. For example, the loose ring and the tight ring of the thrust bearing should be installed correctly. The tight ring should be rotated, and the adjustment should be based on the beating of the main shaft. Adjusting its gap, the gap will be too small for the spindle to heat up, but the heat can not exceed 60 degrees, the overheating should burn the bearing. The adjustment is achieved by loosening or tightening the back cap on the back of the bearing. Different bearings have different adjustment methods for different bearings.

The life of a radial thrust ball bearing is very important in terms of maintenance and maintenance, because it is related to the length of the bearing life and the level of work efficiency. Maintaining the bearings used will bring a lot of benefits, such as high production efficiency, production of higher quality products, and several maintenance times to extend your life. .

1 Adjust the gasket method:

A set of soft material gaskets is placed between the end of the radial thrust ball bearing end cover and the end of the bearing housing; when adjusting, the bearing end cover is not placed on the gasket, and the screw on the bearing end cover is evenly tightened on one side. The hand rotates the shaft until the bearing rolling element contacts the outer ring and there is no gap inside the shaft; at this time, the gap between the bearing end cover and the end face of the bearing seat is measured, and the shaft required for the normal thrust ball bearing in normal operation is added. To the gap; this is the total thickness of the required gasket, then fill the prepared gasket between the bearing end cap and the end of the housing, and finally tighten the screw.

2 Adjust the bolt method:

Press the pressure ring on the outer ring of the radial thrust ball bearing and pressurize with the adjusting bolt. Before adjusting the pressure, first measure the pitch of the adjusting bolt, then slowly tighten the adjusting bolt until there is no gap inside the bearing. Then calculate the corresponding rotation angle of the adjustment bolt. Grease-lubricated radial thrust ball bearings should be replaced after 1500 hours of operation. The amount of oil to be filled should be appropriate. Because too much or too little grease will cause the thrust of the radial thrust ball bearings. The amount of fuel is generally controlled. The volume of the bearing chamber is preferably 1/2 to 2/3.

The clearance of the radial thrust bearing can not be found under normal circumstances, but the user can find in the rolling bearing manual that the level of free clearance corresponds to the letter in the bearing code, such as the free clearance of different grades of C1, C2 and C3 commonly used in production. General versatile information, such as the Mechanical Industry Press, "Rolling Bearing Manual." Normal centripetal thrust bearing clearance user does not need to measure, as long as it is a qualified product, in its bearing accuracy and clearance (marked in the bearing model is not part, as specified in "/S3", as we do not have to test the bearing material The same hardness.
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