Three Row Roller slewing Bearing are constructed with three independent rows of rollers to handle a combination of axial, radial and overturning moment loads. The rollers are oriented for optimum load carrying capability.

Three Row Roller Slewing Bearing are excellent solutions in applications where a high degree of stiffness is necessary, however they require rigid and precise mounting structures.

Three row roller slewing bearing have the following features: High load carrying capacity;Different loads are supported by different raceways and cylindrical rollers separately. Therefore, under same loads, ball diameter can be reduced much more to make the NSK 6203z Bearing mainframe more compact.Applications: Hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering and etc.