What are the reasons for the increase in the clearance of the slewing bearing?
The slewing bearing is a new type of mechanical component that can withstand large axial, radial loads and overturning moments at the same time. However, the slewing bearing of the crane that has been used for a long time sometimes encounters the problem of increased clearance. What are the reasons for this problem?
1.The operator violates the operating procedures, does not perform daily maintenance, does not regularly maintain and add grease to the slewing bearing, and works under heavy load for a long time, causing serious heating of the rolling element, aggravating the wear of the slewing bearing raceway, causing shaking and abnormal noise, thereby increasing the clearance. When this happens, the machine should be stopped immediately for inspection, and the slewing bearing should be disassembled and inspected if necessary.
2. The steel structure of the slewing bearing is not rigid enough or the bolts are loose, resulting in elastic deformation during loading, overall shaking of the slewing bearing, overload of local rolling elements, long-term overloading operation, and crushing of the raceway and rotting of the rolling elements, thereby increasing the clearance of the slewing bearing and causing irreparable damage to the slewing bearing.
The above two points are the main reasons for the increase in the clearance of the slewing bearing. Everyone must pay attention to them during use. If you need crane slewing bearing and other products, welcome to Jieheng slewing bearing company for consultation and purchase.
