No Gear Slewing Bearing

1.Product Introduction: Slewing bearings without an integrated gear ring require external transmission (gears or chains). They have a simple structure and low cost, and are suitable for equipment that does not need active driving.
2.Structure Type: It has an annular shape (consisting of inner ring + outer ring + rolling elements + cages + seals), without gear processing. The rolling elements are single-row steel balls or rollers, with rubber seals and evenly distributed mounting holes.
3.Size Range: Outer ring diameter: 300 - 2000mm, inner ring diameter: 250 - 1850mm, height: 15 - 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: Small amusement facilities (manual rotating platforms), light logistics turntables, auxiliary turntables of ordinary machine tools.
6.Key Inspection Items: Dimensional accuracy, rotation friction torque, sealing performance.

Product Description

High-Performance No Gear Slewing Bearings for Heavy-Duty Industrial Applications

Engineered for Extreme Loads, High-Temperature Resistance, and Precision in Metallurgy, Mining, and Construction Machinery

What Makes No Gear Slewing Bearings Essential for Modern Industry?

No Gear Slewing Bearings are specialized rotation components designed for applications where external drive systems (gears or chains) handle motion transmission. With a simplified structure and cost-effective design, these gearless bearings excel in equipment requiring passive rotation support, such as manual turntables, light logistics systems, and auxiliary machinery. Built to endure harsh environments—including temperatures up to 150°C and dynamic loads up to 10,000 kN—they offer reliable performance while minimizing maintenance needs.

At LUOYANG INNO BEARING CO., LTD, we combine 30+ years of engineering expertise with advanced material science to deliver gearless slewing bearings that outperform industry standards in durability, precision, and adaptability.

Key Technical Specifications

Parameter Specification
Type Gearless slewing bearings
Structure Single-row steel balls/rollers, nitrile rubber seals, pre-drilled mounting holes
Load Capacity Static 500–10,000 kN | Dynamic 200–6,000 kN
Temperature Range -30°C to +150°C
Precision P4-grade (ISO 492)
Noise Level <35 dB at 1000 RPM
Material 42CrMo/50Mn steel rings, GCr15 bearing-grade rolling elements
Size Range Outer diameter 300–2000mm | Height 15–80mm

Where No Gear Slewing Bearings Deliver Unmatched Performance?

1. Metallurgical & Mining Equipment
From rotary kiln bases to conveyor swing arms, our bearings withstand extreme heat (500°C+) and abrasive dust while maintaining smooth rotation under multidirectional loads.

2. Port & Logistics Machinery
Optimized for container cranes and turntables, they provide 360° continuous rotation under shock loads up to 8,000 tons, backed by corrosion-resistant coatings for marine environments.

3. Medical Imaging Systems
Achieve <0.001° positional accuracy and <25dB noise levels for CT/MRI gantries, using biocompatible stainless steel (316L) to meet FDA/EU compliance.

4. Construction & Robotics
Compact designs (as small as φ50mm) support robotic arms and excavator turntables with zero backlash and 10⁴ N·m/rad torsional stiffness.

Tailored Solutions for Unique Challenges

Fast Customization

  • Standard Sizes: Up to φ5000mm
  • Non-Standard Designs: Modify sealing (fluoropolymer for oil resistance), lubrication (high-temperature grease), or mounting interfaces.
  • Lead Time: 15–20 days for φ3000mm orders—30% faster than competitors.

Precision Manufacturing

  • Material Integrity: High-purity forged steel hardened to HRC 58–62 via proprietary heat treatment.
  • Sealing Systems: Triple-lip seals block contaminants even in submerged conditions.

Quality You Can Trust

Rigorous Testing Protocols

  • Raw Material Checks: Ultrasonic testing for internal defects.
  • 12+ Performance Tests: Lifespan simulation (ISO 281), vibration analysis (DIN 45631), and impact resistance validation.
  • 99.9% Defect-Free Rate: Achieved through triple QC inspections.

Global Compliance
Certified No Gear Slewing Bearing to ISO 9001, CE, and RoHS standards for seamless integration into international projects.

Agile Delivery & Lifespan Support

Rapid Supply Chain

  • Standard Bearings: Shipped within 48 hours from regional warehouses.
  • Bespoke Orders: Modular production cuts lead times to 70% of industry averages.

Lifetime Partnership

  • IoT-Driven Maintenance: Embedded sensors predict wear, reducing unplanned downtime by 40%.
  • 24/7 Technical Support: On-site installation guidance and troubleshooting.

Why Choose INNO for Your No Gear Slewing Bearings?

  1. Three Decades of Mastery: 500+ pre-engineered designs for faster customization.
  2. End-to-End Control: In-house R&D, forging, and heat treatment ensure consistency.
  3. Proven Reliability: Validated in 50+ heavy-industry projects worldwide.
  4. Global Reach: Certifications across 50+ countries simplify procurement.

FAQs

Q: How do your bearings handle 150°C environments?
A: We use 42CrMo steel with precision tempering, retaining hardness above HRC 55 at extreme temperatures.

Q: What load capacities do you offer?
A: Static loads up to 10,000 kN for kiln bases; dynamic loads up to 6,000 kN for cranes.

Q: Can you deliver non-standard sizes quickly?
A: Yes—our modular system delivers φ3000mm custom bearings in 15–20 days.

Q: How do you ensure low noise in medical applications?
A: Precision grinding achieves P4-grade accuracy, paired with vibration-damping nylon cages.

Q: What support do you provide post-purchase?
A: Lifetime access to our engineers for lubrication planning, retrofitting, and IoT-based predictive maintenance.

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