Four Point Contact Ball Slewing Bearing

Four Point Contact Ball Slewing Bearing: Precision & Durability for Heavy-Duty Applications

A Four Point Contact Ball Slewing Bearing is engineered to handle bidirectional axial and radial loads simultaneously, making it ideal for equipment requiring 360° continuous rotation. With its unique four-point contact design, this bearing distributes stress evenly across the raceways, ensuring high rigidity, minimal friction, and extended service life—even in extreme conditions like high temperatures or heavy shock loads. At LUOYANG INNO BEARING CO., LTD, we combine 30+ years of expertise with advanced materials to deliver slewing bearings that excel in industries ranging from construction machinery to renewable energy.

Technical Parameters

• Load Capacity: Axial (500 kN–50,000 kN), Radial (300 kN–30,000 kN)
• Materials: 50Mn/42CrMo steel rings, GCr15 bearing balls, nitrile/fluororubber seals
• Dimensions: Outer diameter 300–3000mm (customizable up to 5000mm)
• Precision: ISO 492 P4/P5 grades for smooth operation
• Temperature Range: -30°C to +150°C (ceramic-coated options available)

Why Choose Us?

1. Proven Expertise in Heavy-Duty Design

Our bearings are optimized for durability. Using high-purity steel and precision grinding, we achieve surface hardness ≥55 HRC and core toughness to withstand impact loads common in mining and port machinery.

2. Tailored Solutions for Unique Needs

Need a custom slewing bearing with integrated gear teeth or non-standard mounting holes? We deliver bespoke designs (e.g., φ4000mm+ diameters) in 15–30 days using modular production workflows.

3. Rigorous Quality Assurance

Every bearing undergoes 12+ tests, including fatigue, salt spray, and torque checks. Our 99.9% defect-free rate ensures reliability for critical applications like medical robotics or offshore cranes.

4. Fast Global Delivery

Choose from 1,000+ stocked standard models (shipped in 48 hours) or benefit from agile manufacturing for custom orders.

Industry Applications

Construction Machinery

Compact four point contact ball slewing bearings enable smooth rotation in tower crane jibs, handling axial loads up to 2,000 kN without sacrificing space efficiency.

Metallurgy & Mining

High-temperature-resistant designs prevent deformation in ladle turrets and rotary kilns.

Renewable Energy

Low-maintenance bearings for solar trackers and wind turbine nacelles, featuring corrosion-resistant coatings for harsh environments.

Port Machinery

Impact-resistant models with IP67 sealing endure saltwater exposure and shock loads in container cranes.

Customization Process

1. Requirement Analysis: Share your load, speed, and space constraints.

2. 3D Modeling & Simulation: We validate designs using FEA to optimize stress distribution.

3. Prototyping: Optional sample production for performance testing.

4. Batch Production: Modular manufacturing cuts lead times by 30%.

Quality Control

• Raw Materials: Ultrasonic testing for impurities.
• Production: Real-time checks on grinding accuracy (±0.01mm).
• Final Inspection: Noise, torque, and waterproof tests.

Ordering Made Simple

• Standard Bearings: Browse our catalog for quick 48-hour shipping.
• Custom Orders: Get real-time updates and DDP shipping support.

Lifetime Technical Support

• Free installation guides (video/manual) and IoT-driven predictive maintenance plans.
• 24/7 engineering support for troubleshooting or retrofitting legacy systems.

FAQs

1. How do your bearings handle 500°C environments?

We use 42CrMo steel with ceramic-coated cages and specialized heat treatment to maintain structural integrity at extreme temperatures.

2. Can you make bearings larger than φ3000mm?

Yes! Our modular process enables custom large-diameter slewing bearings up to φ5000mm with integrated gears or flanges.

3. What certifications do you offer?

All bearings meet ISO 9001, CE, and industry-specific standards (ATEX, DNV-GL).

4. How fast can you deliver non-standard orders?

Most custom designs ship in 15–20 days. Urgent orders receive priority without compromising quality.

Contact Us

Need a Reliable Four Point Contact Ball Slewing Bearing?

Email us at sales@inno-bearing.com for quotes, technical specs, or custom project discussions.