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Shanghai Ju Peng Bearing Co., Ltd.

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What are the ways to maintain and store turntable bearings? Shanghai Ju Peng Bearing Co., Ltd. 2020-03-09 13:55:01

Turntable bearing is a large bearing which can bear large loads such as axial load, radial load and overturning moment. It has many special functions, such as support, rotation, transmission and fixing. Therefore, when installing the turntable bearing, we must do a good job in checking the correlation, or when we need to pay attention to the installation. For this large bearing, we must do well in maintenance, storage and so on, so as to avoid the following damage to the turntable bearing, resulting in the failure to be used normally. 1. Installation of turntable bearing
Before installing the turntable bearing, the installation surface of the main engine should be inspected. The supporting parts should have enough strength. The connection surface should be machined and the surface is smooth without any sundries and burrs. For those machinings that can not be machined to achieve the required flatness, special plastic with high injection intensity can be used as filling material to ensure the accuracy of the installation plane and to reduce vibration. The ring of the turntable bearing has a hardened soft zone. When installing, the position of the soft belt should be placed in the non load area or the non constant load area (the plug hole is always located at the soft belt).
When installing the turntable bearing, it should be positioned in a radial direction, tighten the bolt and tighten the rotation of the bearing. When tightening the bolt, there should be enough pre tightening force, and its pretightening force should be 70% of the yield limit of the bolt material. Installation of bolts should be equipped with quenched and tempered flat washers and no use of spring washers.

2. Maintenance of turntable bearings
After 100 hours of continuous operation, the turntable bearing installed and put into operation should check the pretightening torque of the installation bolt in line with the requirements, and repeat the above check once every 500 hours continuously. After installing the turntable bearing, proper grease should be filled, and the slewing bearing should be filled with side to make the grease distribute evenly. When the turntable bearing is working for a period of time, it will inevitably lose part of the grease. Therefore, the lubricating grease can be added to the turntable bearings normally at intervals of 50~100 hours.
3. Transport and storage of turntable bearings.
Bearing should be placed horizontally on the vehicle during transportation, and measures should be taken to prevent slipping and prevent vibration, and auxiliary support should be added if necessary.