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

Messinger Bearings has analysis software that will optimize the configuration and sizing of the rollers however they to most meet the needs of the application and loading.
As with all of our slewing bearings, Three Row Roller Bearings can be supplied with internal or external integral gearing.

The  series bearing has three independent rows of rollers oriented normal to the direction of loads being transmitted through the bearing. Their orientation is selected to optimize capacity, provide KOYO 6304 Bearing low frictional resistance and minimize deflection.

The top and bottom rows of rollers transmit any opposing thrust loads and combine to transmit any moment loading, while the middle row transmits any radial loads. The rollers, the separator configuration used for each, and the mating raceways are sized to meet load or other application requirements.