The single-row crossed roller slewing bearing with external gear is a precision rotational component developed for applications that demand high load capacity, exceptional rigidity, and accurate motion control within a compact design. This bearing type incorporates cylindrical rollers arranged in a crossed pattern, offering superior performance characteristics for precision-critical equipment.
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 | Type | Brand | Boundry Dimension | Abutment Dimension | Other Specificaions | Circumferential Force | Weight | |||||||||||||||
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| d[mm] | D[mm] | T[mm] | J1 | J2 | N1 | N2 | n1 | n2 | d1 | D1 | H | B | B1 | m | z | x | FTDov | Fmax | ||||
This bearing series comprises an inner ring, an outer ring with integral external gear teeth, and a single row of cylindrical rollers arranged in a crossed configuration between precision-ground raceways. The rollers are oriented with their axes alternating at 90-degree angles, creating an arrangement that efficiently manages axial loads from both directions, radial loads, and tilting moments simultaneously. This crossed roller geometry provides line contact with the raceways, delivering greater load-carrying capacity and enhanced rigidity compared to ball bearings of similar dimensions.
The external 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. The bearings are typically supplied with seals on both sides to prevent contamination and retain lubrication.
