HJB CrossedRoller bearing

HJB Crossed Roller bearing

HJB Crossed Roller bearing

The single-row crossed roller slewing bearing series is a precision rotational component engineered for applications that demand high accuracy, exceptional rigidity, and flexible drive integration. This gearless design features cylindrical rollers arranged in a crossed pattern, offering superior performance for precision-critical equipment where the drive system is best implemented externally.



Application Areas

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

Machine tools and coordinate measuring equipment



  • HJB Crossed Roller bearing
  • HJB Crossed Roller bearing
InquiryTypeBrandDimensionsMounting DimensionsStructural DimensionsWeight (kg)
D (mm)d (mm)H (mm)D1 (mm)D2 (mm)nΦ (mm)n1 (mm)D3 (mm)d1 (mm)H1 (mm)h (mm)

This bearing series comprises an inner ring, an outer ring, and a single row of cylindrical rollers arranged in a crossed configuration between precision-ground raceways. Both rings are manufactured without gear teeth, resulting in a cleaner, more streamlined profile. 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. The 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 omission of gear teeth simplifies the ring geometry, reduces manufacturing costs, and makes the bearing easier to handle and install. 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.


HJB.png