112 External Gear

112 External Gear

112 External Gear

The 112 series is a single-row crossed roller slewing bearing featuring an external gear on the outer ring. This series is designed for applications that require high rotational accuracy, compact dimensions, and reliable combined load support. The crossed roller configuration offers superior rigidity and precision compared to traditional ball bearings, making it an ideal choice for applications where accuracy and stability are critical.



Typical Applications:

Robotics and automation equipment

Precision rotary tables and indexing systems

Radar and antenna positioning systems

Medical equipment such as CT scanners and radiotherapy devices

Solar tracking systems requiring high pointing accuracy



  • 112 External Gear
  • 112 External Gear
InquiryTypeBrandOverall DimensionInstallation DimensionStructure DimensionTeeth InformationRated axial static loadWeight
Da[mm]D[mm]di[mm]H[mm]La[mm]Li[mm]n1n2φ1φ2bhBCDidamzx

The 112 series bearing consists of an inner ring, an outer ring with integral external teeth, and a single row of cylindrical rollers arranged in a crossed pattern between the raceways. The rollers are positioned with their axes alternating at 90-degree angles, creating a design that efficiently handles axial loads (in both directions), radial loads, and tilting moments simultaneously. This crossed roller arrangement provides line contact with the raceways, resulting in greater load-carrying capacity and enhanced rigidity compared to ball bearings of similar dimensions.

The external gear is machined directly on the outer ring, enabling direct pinion drive coupling without the need for a separate gear ring. This simplifies the transmission system and reduces overall component count. Both rings are provided with mounting holes for straightforward bolted installation, making connection between adjacent machine components simple and efficient.


Series 11-Single Row Cross Roller Slewing Bearing-External gear.jpg