The failure of the slewing bearing processing is mainly due to the unreasonable selection in the early stage and the maintenance in the later stage. How to made a reasonable product selection, usually we consider the following aspects: the working conditions, conditions and environment of the slewing bearing Performance requirements (life, accuracy requirements, speed, lubrication), etc., reasonable selection can eliminate many potential dangers in the process, we analyze how to select the product from the structure type of the slewing bearing.
This type of slewing bearing is widely used in the market, and its internal structure is compact. It is mainly used in axial loading working conditions and the titling moment is large.
This type of slewing bearing is composed of double-row rolling elements, which can bear radial force, axial force and titling loading moment at the same time. It has low requirements on installation accuracy and base deformation. It is not recommended to use in high precision equipment.
This type of slewing bearing can bear larger load. Compared with the above two models of slewing bearings, with the same raceway center distance, the unique internal structure makes the three-row roller type structure the strongest bearing capacity, but because the roller rolls There is a sliding phenomenon, so it has a large running resistance, and with high requirements on the processing of the raceway and the roller, and the base has a certain rigidity when installed, and is widely apply to a case where the bearing is large and the deformation rate is small.
Because its structural cross section is straight, it can withstand radial force, axial force and overturning moment. It is suitable for occasions with high precision requirements. According to customer requirements, the assembly gap can be adjusted to negative clearance.