High-precision rollers, compared to ball bearings, have a smaller cross-sectional area and volume but a higher radial load capacity. As a load-bearing component, the roller experiences line contact under stress, making its structure ideal for use in environments with vibration or oscillation.

The rollers produced by EXFIRO are manufactured from bearing steel (SUJ2) and precision-ground multiple times to achieve a hardness of HRC 58~66. The precision-grade rollers have a diameter tolerance within 0.001mm, cylindricity, and roundness within 0.001mm, with a surface roughness of less than Ra 0.1

Main Suitable Cages : Stamped steel cages (Z-shape), copper alloy machined cages, pin-type cages, synthetic resin molded cages.

※ Custom Roller can be precision-engineered to meet specific requirements, offering flexibility in both diameter and length to suit diverse applications.