Plain bearing turntable installation and maintenance

1. Installation of plain bearing turntable
Before installing the plain bearing turntable, it is necessary to inspect the installation surface of the host. The supporting components should have sufficient strength, the connection surface should be machined, and the surface should be flat and free of debris and burrs. For those that cannot be machined to achieve the required flatness, special plastics with high injection strength can be used as fillers to ensure the accuracy of the installation plane and reduce vibration. The plain bearing turnable ferrule has a quenched soft band area, which is marked with "S" on the end face of the ferrule. When installing, the position of the soft band should be placed in the non load area or non frequent load area (the plug hole is always located at the soft band).
When installing the plain bearing turntable, radial positioning should be carried out first, the installation bolts should be tightened crosswise, and the rotation of the bearings should be checked. When tightening bolts, there should be sufficient pre tightening force, which should be 70% of the yield limit of the bolt material. The installation bolts should be equipped with tempered flat washers and the use of spring washers is strictly prohibited.

2. Maintenance of plain bearing turntable: After the installed and put into operation turntable bearings have been continuously running for 100 hours, a comprehensive inspection should be conducted to ensure that the pre tightening torque of the installation bolts meets the requirements. The above inspection should be repeated every 500 consecutive hours of operation in the future. After the installation of the rotary table bearing, an appropriate amount of lubricating grease should be filled, and the bearing should be rotated while filling to ensure uniform distribution of lubricating grease. After a period of operation, the rotary table bearing inevitably loses some lubricating grease. Therefore, lubricating grease should be replenished every 50-100 hours for normal operation of the rotary table bearing.

3. Transportation and storage of plain bearing turntable: During transportation, bearings should be placed horizontally on transportation vehicles, and measures should be taken to prevent sliding and vibration. If necessary, auxiliary support should be added.
In general, the plain bearing turntable itself comes with installation holes, lubricating oil holes, and sealing devices, which can meet the different needs of various hosts working under different working conditions; On the other hand, the plain bearing turntable itself has the characteristics of compact structure, convenient guidance and rotation, easy installation and maintenance, and is widely used in large and medium-sized rotary devices such as lifting and transportation machinery, metallurgical machinery, mining machinery, construction machinery, port machinery, and automated assembly lines.

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