Home>Bearing knowledge>Mechanical and protection of rolling mill bearings (3)

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Rolling mill bearing equipment and protection (3)

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The outer ring of the four-row tapered roller bearing and the bearing housing hole are also selected for dynamic cooperation; firstly, the outer ring A is loaded into the bearing housing (see Fig. 2). The outer ring, the inner ring and the inner and outer rings are printed with character symbols at the factory; The device must be loaded into the bearing housing in the order of the character symbols. It is not easy to exchange; to avoid the change of bearing clearance.
Figure 2: Four-row tapered roller bearing layout layout All parts are placed in the bearing housing; the inner ring and the inner spacer, the outer ring and the outer spacer axially close.
Measure the gap width between the outer ring end face and the bearing box cover; to determine the thickness of the corresponding gasket.
Second, the rolling mill bearing protection and monitoring of the bearing should be strengthened in the application process to protect and monitor; to extend its life.
1. Adhere to the smooth oil road Xiaochang; select the smoothing agent according to the rules; fill the smoothing agent with sufficient amount at the timing. Ensure the rolling appearance of the roller and the sliding appearance of the roller and the rib; adhere to the outstanding smoothness of the oil wax. Regularly check the sealing condition of the seal; replace the damaged seal in time to ensure the sealing function of the bearing; avoid the water and iron oxide into the bearing; avoid the leakage of the bearing smoothing agent. 3. Contact the company's practice; actively expand the bearing operation Monitoring of the situation.
Noise monitoring: It should be a smooth humming sound during normal operation; timing monitoring and comparison with normal sound; timely detection of abnormal conditions.
Smoothing agent monitoring: normal smoothing agent should be clear and clean; if the smoothing agent has become dirty, there will be worn particulate pollutants.
Temperature monitoring: When the temperature rises, the operation will be abnormal. The company has started temperature monitoring operations; it is more willing to serve customers.
Establish a record card; record the number of days of bearing online use, over-steel quantity and protection monitoring; strengthen the handling of bearing operation.
Third, the rolling mill bearing smooth 1, the importance of the smoothness of the bearing is the use of oil film to separate the relative movement of the tumbling appearance of each other; not due to rough contact caused by excessive wear and failure. Users can attach great importance to bearing smooth skills; Ensure that the specified number of hours of operation is maintained; still maintain stable function and rotation accuracy.

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