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Metal Single - Row Crossed Roller Slewing Bearing SK 110.25.500 SK 110.25.500 Single-row Crossed Roller Slewing Bearing - No Gear Features: Slewing Bearings can accommodate axial, radial and moment loads acting single or in combination and in any direction. They are not mounted in a housing or on a shaft, but directly to a seating surface. The inner and outer ring are supplied with mounting holes. Both rings may have integral gears. They are also referred to as slewing rings