CRBS crossed roller bearing

Design Principles: The 90° orthogonal crossed arrangement of rollers optimizes the length and distribution of contact lines, forming a symmetrical "X"-shaped load-bearing structure that evenly distributes radial, axial, and moment heavy loads to each roller, avoiding local stress overload under heavy loads and improving bearing stability. The inner ring flange-integrated design is directly fixed through standard mounting holes, reducing intermediate positioning links, ensuring coaxiality and installation accuracy under heavy loads; the integral outer ring structure enhances rigidity, resists heavy-load deformation, and reduces cumulative errors. Performance Features: Core Heavy-Load Bearing: Optimized contact design between rollers and raceways, bearing capacity increased by more than 40% compared with conventional crossed roller bearings, capable of stably withstanding ultra-heavy composite loads. Flange-Integrated Installation: Equipped with standard mounting holes, no additional positioning seat required, simplifying the assembly process of heavy-load equipment and improving installation stability and coaxiality. High Rigidity & Deformation Resistance: Crossed roller layout + heavy-load reinforced material, deformation resistance increased by more than 3.5 times, ensuring rotational accuracy under heavy-load working conditions. Long Service Life & Wear Resistance: GCr15 material with heavy-load reinforced treatment (surface hardness HRC 61-63), precision polishing of roller end faces (Ra≤0.08μm), fatigue life and wear resistance increased by 50%. Customization Options: Supports non-standard size customization, flange specification (thickness/hole diameter) customization, heavy-load optimization design, corrosion-resistant material (SUS440C), special lubrication solutions for ultra-high/low temperature, and labyrinth seal enhancement.

Roller Arrangement and Load Distribution: The rollers are arranged in a 90° orthogonal cross pattern, forming an optimized "X" contact line. This increases the contact area while evenly distributing radial, axial, and moment loads, preventing localized stress overload. Under heavy load conditions, the symmetrically distributed contact lines effectively balance load stress, improving load-bearing stability. Moment loads are efficiently transmitted through the diagonal rollers, further enhancing heavy-load bearing efficiency and structural rigidity. Lubrication and Sealing: - Sealing Protection: Double-contact seals (UU/U) or labyrinth seals (ZZ) effectively prevent dust, liquids, and impurities from entering, suitable for heavy-duty and complex environments; the open design meets the lubrication requirements of clean, heavy-duty applications. - Thermal Management: Precision polishing of the roller end faces and a heavy-duty cage design reduce friction loss and effectively control working temperature rise (typical temperature rise ≤15°C); combined with the high-temperature stability of heavy-duty lubricants, this ensures the thermal stability of precision equipment under heavy loads. Installation Adaptability: The integrated inner ring flange structure adapts to standard mounting holes and can be directly bolted, simplifying the assembly process of heavy-duty equipment; the integral outer ring design adapts to standard interference fits (shaft h6/housing bore H7), compatible with the assembly tolerance requirements of most heavy industrial equipment, ensuring operational accuracy under heavy loads through precise positioning.