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Types Of Three-row Combined Roller Slewing Bearing May 11, 2020

Three-row combined roller slewing bearing

The three-row roller type slewing bearing has three seat rings up and down and the radial raceway is separated, so that the load of each row of rollers can be accurately determined, and can withstand various loads at the same time, which is the load capacity of the four products The largest one, with large shaft and radial dimensions and strong structure, is especially suitable for heavy machinery requiring larger diameters, such as bucket wheel excavators, wheel cranes, marine cranes, ladle slewing and large-tonnage truck cranes. on.

Double-row angular contact ball slewing bearing

The double-row ball type slewing bearing has three seat rings, and the steel ball and the isolation block can be directly discharged into the upper and lower raceways. According to the force situation, the upper and lower rows of steel balls with different diameters are arranged.

This open assembly is very convenient. The load angle of the upper and lower arc raceways is 90 °, which can withstand a large axial force and tipping moment. When the radial force is greater than 0.1 times the axial force, the raceway must be specially designed. The axial and radial dimensions of the double-row ball slewing bearing are relatively large, and the structure is sturdy. It is especially suitable for loading and unloading machinery such as tower cranes and truck cranes that require a medium or larger diameter.

Single row cross roller slewing bearing

Single-row cross-roller slewing bearing, composed of two seat rings, compact structure, light weight, high manufacturing accuracy, small assembly gap, high installation accuracy requirements, 1: 1 cross roller arrangement, can withstand axial Force, large radial force and tipping moment. It is widely used in lifting transportation, construction machinery and military products.

Single-row four-point contact ball slewing bearing

The single-row four-point contact ball bearing slewing bearing consists of two races. It has a compact structure and light weight. The four-point contact between the steel ball and the arc raceway can withstand axial force, radial force and tipping moment at the same time. Rotary conveyors, welding manipulators, small and medium cranes, excavators and other construction machinery can be selected.