Three-row Roller Slewing Bearings

Three-row roller slewing bearings are engineered for heavy-duty applications requiring ultra-high load capacity, compact structure, and reliable performance under combined axial, radial, and overturning moment loads. This type of slewing bearing features a three-row cylindrical roller structure with independent upper, lower, and radial raceways. By distributing loads in different directions to separate rows of rollers, it effectively reduces the overall bearing diameter while significantly enhancing load-bearing efficiency and structural rigidity.

As one of the heavy-load slewing bearing series with exceptional carrying capacity, three-row roller slewing bearings are widely applied in heavy machinery and equipment, including lifting machinery, mining equipment, material handling systems, marine engineering machinery, and other large-scale rotating facilities that demand superior load support.

Raceway Quenching Hardness: HRC 55–62

External Diameter Range: 300 mm – 10,000 mm 

Outer Diameter: 634 mm – 5,282 mm

Roller Diameter: 25 mm – 50 mm

Rated Load: 275 kN – 6,050 kN
Gear Type: No Gear / Internal Gear / External Gear

Lead Time: Approximately 30 Days