RA Series Crossed Roller Bearing Id 80mm Lightweight Single Row Roller Bearing

RA Crossed Roller Bearing

Crossed Roller Bearings feature cylindrical rollers arranged alternately at right angles between the inner and outer rings. This design allows the bearing to support radial loads, axial loads in both directions, and moment loads simultaneously within a compact structure.

With high rigidity, smooth rotation, and excellent positioning accuracy, Crossed Roller Bearings are ideal for applications requiring precise motion control and space-saving designs. They are widely used in industrial robots, machine tools, precision rotary tables, and automation equipment.

• RA Type is an ultra-thin crossed roller bearing with a split outer ring and an integrated inner ring, designed to minimize overall thickness. Sharing the split outer ring structure similar to the RB type, RA bearings are ideal for applications that require lightweight, compact designs, such as robotic joints and mechanical arm rotation assemblies.

Key Advantages

• Ultra-Thin and Lightweight:
  The ultra-thin design reduces the overall thickness while maintaining high rigidity, making it ideal for compact and weight-sensitive applications.

• High Rigidity:
  Crossed roller arrangement ensures excellent stiffness and stable operation even under combined radial, axial, and moment loads.

• Compact Split Outer Ring:
  The outer ring is split while the inner ring is integrated, allowing for easier installation and alignment without compromising performance.

• High Rotational Accuracy:
  The integrated inner ring maintains precise rotational motion, suitable for high-precision applications such as robotic joints and mechanical arms.

• Space-Saving Design:
  The minimal thickness allows integration into constrained spaces, optimizing the design of lightweight machinery.

OEM / Customization

This bearing supports OEM services and customization, allowing customers to specify brand labeling, lubrication options, precision tolerances, or packaging according to their requirements. It can be tailored to meet unique operational needs, ensuring optimal performance and full compatibility with customer-specific equipment.

RA Series Crossed Roller Bearing Specifications