The single-row crossed roller slewing bearing with Internal gear is a precision rotational component engineered for applications requiring high accuracy, exceptional rigidity, and reliable performance within a compact envelope. This design utilizes cylindrical rollers arranged in a crossed pattern, offering superior load capacity and rotational precision compared to conventional ball bearing solutions.
Robotics and automation equipment
Precision rotary tables and indexing systems
Radar and antenna positioning systems
Medical imaging and radiotherapy equipment
High-accuracy solar tracking systems




| Inquiry | Bearing Type | Brand | Drawing No. | Dimensions | Fixing Holes | Gear Teeth | Tooth Force | Mass [KGS] | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Da [mm] | u [mm] | O [mm] | C [mm] | Di [mm] | Ha [mm] | Hb [mm] | H [mm] | La [mm] | na | da [mm] | Li [mm] | ni | di [mm] | p [mm] | M | Z | Fz nor [KN] | Fz max [KN] | [KG] | ||||
This bearing series consists of an inner ring, an outer ring with integral gear teeth, and a single row of cylindrical rollers positioned in a crossed configuration between the raceways. The rollers are oriented 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 geometry establishes line contact with the raceways, delivering greater load-carrying capacity and enhanced rigidity compared to ball bearings of similar dimensions.
The internal gear is formed directly on the outer ring surface, enabling direct engagement with a drive pinion without requiring separate gear components. This integration simplifies the drive system and reduces overall part count. Both rings incorporate mounting holes for secure bolted attachment to the machine structure.


