Crossed Roller Bearings - Precision Engineered by PRS Bearing

Analyze the dominant forces your bearing will encounter: radial, axial, or combined loads.
1）Standard High Loads: A single-row cross-roller bearing is perfect for standard high-load, combined-force applications.
2）High-Moment Applications (e.g., Robot Wrists/Joints): We strongly recommend upgrading to a double-row cross-roller bearing to deliver double the resistance against tilting and overturning moments.

Match your equipment’s motion profile with the correct ISO/JIS tolerance class.
1）Optical Positioning & Precision Metrology: You must specify P2 or P4 grade ultra-precision tolerances to ensure near-zero radial and axial runout.
2）General Automation & Conveyances: Standard precision classes are sufficient, perfectly balancing cost and performance.

Rotational velocity and environmental hazards dictate your internal cage architecture and lubrication strategy:
1）High-Speed Operations: Opt for metal cages due to their excellent wear resistance and rapid thermal dissipation. These require dedicated lubrication and cooling loops.
2）Lower Speeds with Contamination Risks: Polymer cages are highly recommended, offering superior shock absorption and self-lubrication properties.

Assess ambient temperature, humidity, and particulate exposure to select the right defense mechanism:
1) Dusty or Humid Environments: Integrated rubber seals are mandatory to prevent fine particulates from penetrating the raceway.
2) Extreme Conditions (e.g., Food Processing, Cleanrooms): Request corrosion-resistant plating (such as specialized electroplating) paired with cleanroom-certified synthetic greases.

Cross-reference the PRS Bearing dimension chart to perfectly align the bore size and outer diameter (OD) with your existing shaft and housing limitations.
1) Note: If standard catalog dimensions do not fit your envelope constraints, the PRS Engineering Team can design fully customized solutions with industry-leading short lead times.