4 Point Angular Contact Ball Bearing

1.Product Introduction: The same as four-point contact ball bearings, strengthening the structural stability of the "four-point contact", optimizing the radius of curvature of the raceway, suitable for scenarios with extremely high requirements for contact accuracy.
2.Structure Type: Inner ring / outer ring (high-precision double circular arc raceway, processed by ultra-precision grinding) + precision steel balls + brass cage. The position of the contact points is precisely controlled.
3.Size Range: Inner diameter: 20 - 500mm, outer diameter: 47 - 800mm, width: 18 - 180mm.
4.Material: Inner ring / outer ring: GCr15 (ultra-precision ground), rolling elements (steel balls): GCr15 (ultra-precision ground), cage: brass.
5.Accuracy: Conventional P0 grade, precision models are of P6/P5/P4 grades.
6.Application Fields: Spindles of precision machine tools, aerospace equipment, high-end testing instruments, semiconductor manufacturing equipment.
7.Key Inspection Items: Deviation of contact point position (≤ 0.002mm), radial runout (≤ 0.001mm), running noise (≤ 38dB), surface roughness of the raceway (Ra ≤ 0.01μm).

Product Description

4 Point Angular Contact Ball Bearing: Engineered for Extreme Performance

In heavy industries like metallurgy and mining, equipment demands bearings that endure relentless stress. 4 point angular contact ball bearings excel here, combining high axial and radial load handling with extreme-temperature resilience. At LUOYANG INNO BEARING CO., LTD, we refine these bearings with raceway curvature optimization and ultra-pure steel for unmatched precision in harsh operating conditions.

Technical Specifications

Parameter Specification
Load Capacity 850kN static axial load, 320kN dynamic radial load handling for ball bearings
Temperature & Accuracy -50°C to +150°C (up to +500°C custom); ISO P4/P5 grades (≤0.001mm radial runout)
Materials & Noise GCr15/440C steel, vacuum-degassed; Noise level ≤35dB at 1,800 RPM
Custom Size Range ID 20mm–5000mm, expandable outer diameter custom bearing options

Key Advantages

  • Four-Point Contact Efficiency: Single raceway structure handles bidirectional axial forces, reducing space needed for paired angular contact bearings.
  • Extreme Temperature Resilience: MoS2 coatings and ceramic components maintain contact point accuracy in high-temperature steel mill bearings.
  • Customization Speed: Modular production delivers non-standard 4 point angular contact ball bearings up to φ3000mm in 15–20 days.

Demanding Industrial Applications

  • Metallurgy: Rolling mill stands and continuous casting machines using heavy-duty angular contact ball bearings.
  • Mining: Crushers and conveyor drive systems engineered for high shock load resistance in heavy bearings.
  • Heavy Machinery: High-speed gearboxes and hydraulic presses relying on high-precision ball bearings.

Quality Testing & Logistics

Every 4 point angular contact ball bearing undergoes spectral steel analysis, raceway roughness checks (Ra ≤0.01μm), and 50,000-hour lifespan testing (DIN 628). Standard models ship within 48 hours from regional stock hubs.

FAQs

Q: How do your 4 point angular contact ball bearings handle 500°C in steel mills?
A: Our high-temp series uses ceramic-coated cages and specialized lubrication, resisting thermal expansion while maintaining precise contact point geometry in heavy bearings.

Q: Can you customize 4 point angular contact bearings for mining crushers?
A: Yes! We adjust raceway curvature, seal configurations, and cage materials to handle 300kN+ shock loads in abrasive ball bearing environments.

Q: How is 15-day custom production possible for large-diameter bearings?
A: Modular pre-machining reduces lead times for custom φ3000mm angular contact ball bearings by 30%.

Contact Us

Need a 4 Point Angular Contact Ball Bearing That Outlasts Your Equipment?

Contact our engineering team to request free load calculation services, CAD models, or custom quotes within 15 days.

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