Three-Row Roller Slewing Bearings

Application of Three-Row Roller Slewing Bearings
The roller slewing bearings are mainly used in the large cranes, tower cranes, etc. to meet the larger load requirement.

Description of Three-Row Roller Slewing Bearings
The three-row roller slewing bearing, also known as the combined-type slewing bearing, is composed of three parts:
---the outer and inner races;
---the spacing block;
---three-row of rollers: two rows of axial rollers and one row of radial rollers.

Feature of Three-Row Roller Slewing Bearings
1. With the detachable gear ring to conveniently adjust the axial fit clearance;
2. High carrying capacity;
3. Three rows of rollers can separately bear the axial and radial load:
---The horizontal-placed rollers are to bear the axial load;
---The vertical-placed rollers are to bear the radial load;
4. The rollers contact with the rolling rings in the form of line contact, which makes the slewing bearings can withstand the larger axial load, radial load and overturning moment.

Besides the Three-row roller slewing bearings, other types of rolling element bearings like Single-row four-point contact ball slewing bearings, Double row ball slewing bearings, Single row cross roller slewing bearings are also supplied in Fenghe---a leading Industrial Rolling Bearings supplier in China.