Four-Point Contact Ball Slewing Bearings

Four-Point Contact Ball Slewing Bearings for Heavy-Duty Industrial Performance

Engineered to handle extreme axial/radial loads and harsh environments, LUOYANG INNO's Four-Point Contact Ball Slewing Bearings deliver unmatched durability for metallurgical plants, port cranes, and heavy machinery. With 30+ years of precision manufacturing expertise, we produce bearings up to φ5000mm that withstand 500℃ temperatures, 10,000 kN loads, and 35dB ultra-quiet operation.

Core Specifications: Precision Built for Demanding Applications

• Diameter Range: φ200mm – φ5000mm (standard & custom sizes)
• Load Capacity: Axial up to 10,000 kN | Radial up to 6,500 kN
• Temperature Resistance: -30℃ to +150℃ (ideal for molten metal handling)
• Material: 42CrMo/50Mn steel with 58-62 HRC hardness
• Precision: P4/P5 grading (ISO 492) | Radial runout ≤0.05mm
• Noise Level: ≤35dB (suitable for medical imaging equipment)

Why Choose Our Four-Point Contact Ball Slewing Bearings?

1. Heavy-Duty Reliability Under Extreme Conditions

Our bearings excel where others fail:

• Metallurgical Equipment: Survive 500℃ molten metal splashes and shock loads with specialized heat-treated raceways.

• Port Cranes: Saltwater-resistant coatings and 100,000+ rotation cycles reduce unplanned downtime by 40%.

• Mining Machinery: Pre-lubricated, triple-sealed designs prevent dust ingress in abrasive environments.

2. Custom Engineering for Unique Challenges

Need non-standard sizes or load configurations? We deliver:

• Fast Prototyping: Legacy equipment retrofits with 3D scanning & dimensional mapping in 24h.

• Material Optimization: Impact-resistant GCr15SiMn steel for mining or corrosion-resistant options for marine use.

• Integrated Gear Machining: ±0.01mm accuracy gear teeth cut directly onto bearing raceways.

3. Zero-Compromise Quality Assurance

Every Four-Point Contact Ball Slewing Bearings undergoes rigorous checks:

• Triple Inspection System: UT/MT material tests, in-process alignment checks, final vibration/lifespan validation.
• 12+ Tested Parameters: Hardness (58-62 HRC), torque consistency, waterproof sealing (IP67 rating).
• Full Traceability: Mill certificates & heat-treatment records provided with every order.

Accelerated Delivery – Even for Custom Orders

• Stock Availability: 1,000+ standard bearings ready to ship globally in 48h.
• Custom Production: φ3000mm bearings delivered in 15-20 days (30% faster than competitors).
• Regional Hubs: Emergency replacements shipped from EU/NA/Asia warehouses within 72h.

Technical Support That Extends Bearing Lifespan

• Predictive Maintenance: IoT sensors monitor real-time load, temperature, and lubrication needs.
• Failure Analysis: Free inspection of worn bearings to identify root causes (abrasion, misalignment, etc.).
• 24/7 Engineering Support: Multilingual technicians guide installation, alignment, and maintenance.

FAQ

Q: How do your bearings handle repeated 500℃ thermal shocks in steel mills?

A: Our metallurgy-grade series uses 50Mn steel with cryogenic hardening, maintaining structural integrity through 100+ thermal cycles.

Q: Can you customize bearings beyond φ5000mm?

A: Yes – our in-house forging shop produces up to φ6000mm. Submit specs for a feasibility review.

Q: What certifications do your bearings hold?

A: ISO 9001, CE, DNV-GL, and OSHA compliance. Industry-specific certs available upon request.

Q: Do you offer on-site installation support?

A: Global engineers provide alignment checks, load testing, and operator training worldwide.

Contact Us

Ready to Solve Your Heavy-Duty Rotation Challenges?

Submit your Four-Point Contact Ball Slewing Bearings requirements (loads, dimensions, environment) to sales@inno-bearing.com for a free quote + technical proposal within 6 hours.