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Crossed Roller Bearing

A crossed roller bearing is a specially designed bearing which the rollers are arranged in a staggered manner, providing a high degree of rigidity and precision, particularly suitable for applications with high loads and tight spaces.

Structural features

Cross-Aligned Rollers: Unlike the side-by-side rollers in conventional bearings, the rollers of cross-aligned roller bearings are staggered so it can carry the loads from all directions  simultaneously.

Single-Bearing Construction: The function of a combined bearing can be realized with a single bearing, saving space and reducing design complexity.

High-Precision Design: These bearings are manufactured with a very high degree of precision and can provide precise motion control.

Split Inner and Outer Rings: Some crossed roller bearings are designed to be split for easy installation and maintenance.

Structure Type

USP-Grade Series of Models PB and PE
PU Type Integrated Inner Outer Ring Type
PE Type Two-piece Inner Ring Type for Outer Ring Rotation
PB Type Separable Outer Ring Type for Inner Ring Rotation
PAU Type Integrated Inner/Outer Ring Type
PA Type Separable Outer Ring Type for Inner Ring Rotation
PA-C Type Single-Split Type

Application environment

Robotics Industry: It is widely used in the joints and rotating parts of robots because of its high rigidity and space-saving feature.

Rotary Tables and Reference Tables: Used in precision rotary tables and machine tool reference tables because they demand high precision and high load carrying capacity.

Medical Devices: Such as the rotating parts of CT machines, which require high speed and precision.

Aerospace & Aeronautics: Used in critical components of spacecraft and aircraft, as these applications require extremely high reliability and rigidity of bearings.

Design features

High-Load Capacity: The cross-arranged rollers allow the bearings to have high radial and axial load carrying capacity in a small space.

High-Rigidity: The arrangement of the crossed rollers greatly improves the rigidity of the bearing, reducing deformation and deflection.

High-Precision: The design of this bearing reduces clearance and friction, providing high-precision rotary motion.

Compact Design: The unique design grands itself with the ability to deliver the same or even higher performance in a smaller space.

Our engineers can solve your problems

Space Constraints: Provides an effective solution for compact or space-constrained applications.

Load Requirements: Able to withstand loads in multiple directions, suitable for complex or heavy-duty applications.

Motion Accuracy: The accuracy and response speed of the motion control system are improved.

Installation and Maintenance: The detached design simplifies installation and maintenance and reduces system downtime.

Our products are equivalent substitute of the following well-known brands

  ● THK (Japan)

  ● IKO (Japan)

  ● INA (Germany)

  ● NSK (Japan)

  ● Timken (USA)

Solutions to industry problems

Learn about WEEYH bearings in these fields

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One-stop bearing procurement factory

WEEYH is jointly organized by the top bearing factories in China, specializing in the R&D of bearings. WEEYH's factories produce about 2 million sets of bearings and related parts and ship to all over the world annually.

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