Crossed Roller Slewing Bearing

1.Product Introduction: The same as "Crossed Roller Slewing Bearings". With crossed roller arrangement, it can bear bidirectional loads and overturning moments, and is suitable for precision scenarios with high precision.
2.Structure Type: It has an annular shape. The inner and outer rings have double raceways, with crossed cylindrical rollers and nylon cages. Some are equipped with dust-proof seals, and mounting holes are reserved.
3.Size Range: Outer ring diameter: 80 - 2000mm, inner ring diameter: 60 - 1850mm, height: 10 - 80mm.
4.Material: Inner ring / outer ring: 50Mn, 42CrMo; rolling elements: GCr15 bearing steel, GCr15SiMn (optional for impact resistance); seals: nitrile rubber, fluororubber (optional for oil and high temperature resistance).
5.Application Fields: Precision machine tools, robot joints, radar antennas, inspection equipment.
6.Key Inspection Items: Radial runout, accuracy of roller arrangement.

Product Description

Precision Crossed Roller Slewing Bearings for Extreme Environments

Custom-Built in 30 Days with 30+ Years Expertise

Crossed Roller Slewing Bearings are your ultimate solution for precision rotation under combined loads. With cylindrical rollers arranged in a 90° cross pattern, these bearings handle axial, radial, and moment loads simultaneously—perfect for robotics, medical scanners, and heavy machinery.

Key Features

  • High Rigidity: Supports bidirectional loads up to 200 kN·m.
  • Temperature Resilience: Operates reliably from -60°C to 150°C.
  • P4 Precision: <5μm runout for surgical robotics and CNC equipment.
  • Compact Design: 10–80mm height saves space in tight installations.

Technical Specifications

Parameter Specification
Outer Diameter 80mm - 3000mm (Custom up to 5000mm)
Load Capacity Up to 200 kN·m
Materials GCr15SiMn rollers, nitrile rubber seals
Precision P4 (ISO 492)

Where Crossed Roller Slewing Bearings Excel

  • Metallurgy & Heavy Machinery: Withstand furnace temperatures and heavy loads with heat-treated 42CrMo steel.
  • Port Cranes & Offshore: IP67 seals and 1,200-hour salt spray resistance prevent corrosion.
  • Medical Robotics & Imaging: Achieve whisper-quiet operation (<60dB) with P6-grade accuracy for MRI machines and surgical arms.

Quality Assured at Every Step

Stage Control Measures
Raw Materials 100% traceable high-purity steel
Heat Treatment HRC 58-62 hardness via vacuum quenching
Final Inspection 3D profilometry, noise testing <35dB

Why Choose Us?

  • Modular Manufacturing: 30% faster turnaround for custom bearings.
  • Nanopolishing: ±1μm accuracy for robotics and optics.
  • Global Compliance: ISO 9001, CE, and RoHS-certified materials.

FAQs

Q: Can you make 3,000mm+ Crossed Roller Slewing Bearings for steel plants?
A: Yes! Our modular process delivers φ5000mm bearings in 20 days with 150°C resilience.

Q: How do you ensure low noise in medical-grade bearings?
A: Precision grinding and P6 tolerances reduce noise to <60dB—ideal for MRI systems.

Q: Do you offer emergency replacements?
A: We keep 1,000+ standard bearing types in stock for 48-hour global delivery.

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