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Double row different diameter ball slewing bearing

Double row different diameter ball slewing bearing has three seat, steel balls and isolation blocks. It can be directly discharged into the upper and lower raceway, and arranged different top and bottom diameter balls based on force status. The assembly is very easy to open. Up and down raceway arc angle is 90 degrees, it can withstand large axial force and overturning force. When the radial force is more than 0.1 times the axial force, the raceway require special design. The axial and radial dimensions of double-row slewing bearing are large, and solid structure, especially suitable for that require above average diameter of the tower cranes, truck cranes and other handling machinery.

Slewing Bearing / Slewing Ring Bearing

Slewing bearing is a kind of special structure of large bearings which can withstand large axial load, radial load and overturning moment, integrating supporting, rotation, transmission, fixed and other functions. Under normal circumstances, slewing bearings have their own mounting holes, lubricants and seals, which can meet various of host need under different working conditions; On the other hand, slewing bearings themselves are compact, easy to guide the rotation, easy installation and easy maintenance, so they widely used in material handling equipments, mining machines, construction machinery, port machinery, wind power generation, medical equipments, radar and missile launchers and other large rotating devices.

According to different structure, slewing bearing can be divided into the following types: 1, the four-point contact ball slewing bearing2, double row different diameter ball slewing bearing3, crossed cylindrical roller slewing bearings4, three-row cylindrical roller combined slewing bearing.