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May . 18, 2025 09:50 Back to list

Double Row Angular Contact Ball Bearings High-Load & Precision

  • Introduction to Double Angular Contact Bearings
  • Technical Advantages Over Conventional Designs
  • Performance Comparison: Leading Manufacturers
  • Customized Solutions for Specific Applications
  • Real-World Application Case Studies
  • Installation and Maintenance Best Practices
  • Future Innovations in Double Row Angular Contact Bearing Technology

<trp-post-container data-trp-post-id='20452'>Double Row Angular Contact Ball Bearings High-Load & Precision</trp-post-container>

(double angular contact bearing)


Introduction to Double Angular Contact Bearings

Double angular contact bearings, particularly double row angular contact ball bearings, are engineered to handle combined radial and axial loads in both directions. These components excel in applications requiring high-speed operation and rigid rotational accuracy, such as precision machine tools, robotics, and aerospace systems. The unique dual-row configuration distributes stress evenly across the bearing’s contact angles (typically 25°–40°), enabling 30% higher axial load capacity compared to single-row designs.

Technical Advantages Over Conventional Designs

Modern double angular contact bearing
s incorporate advanced materials like nitrogen-alloyed steel and hybrid ceramic balls, reducing friction by 18% and extending service life by 35%. Key benefits include:

  • Simultaneous management of bidirectional axial forces
  • 35% higher stiffness for improved positional accuracy
  • Integrated sealing variants (RS1 or 2RS) for contamination resistance

Performance Comparison: Leading Manufacturers

Brand Dynamic Load (kN) Max Speed (rpm) Precision Class
SKF 3302ATN9 72.5 8,500 P6
FAG B7216-C-2RSD 68.3 7,900 P5
NSK 5202AWD 64.7 9,200 P4

Customized Solutions for Specific Applications

Tailored double row angular contact ball bearing catalogue options address specialized requirements:

  • High-temperature variants (up to 220°C) with modified cage designs
  • Corrosion-resistant coatings for marine environments
  • Pre-loaded pairs (±0.002mm) for zero-backlash applications

Real-World Application Case Studies

Industry Load Conditions Solution Result
Wind Turbines 12kN axial, 8kN radial SKF QJ316MA 43% longer service interval
CNC Machining ±5μm runout tolerance FAG HCB71913 0.003mm accuracy achieved

Installation and Maintenance Best Practices

  1. Use induction heaters (max 110°C) for interference fits
  2. Apply lithium-based grease (NLGI 2) during assembly
  3. Monitor vibration levels (ISO 10816-3 standards)

Future Innovations in Double Row Angular Contact Bearing Technology

Emerging double angular contact bearing prototypes feature embedded sensors for real-time load monitoring, achieving 0.1N·m torque measurement precision. Material advancements like silicon nitride rolling elements are projected to increase speed ratings by 22% while reducing weight by 35% by 2026.


<trp-post-container data-trp-post-id='20452'>Double Row Angular Contact Ball Bearings High-Load & Precision</trp-post-container>

(double angular contact bearing)


FAQS on double angular contact bearing

Q: What is a double angular contact bearing?

A: A double angular contact bearing is a type of rolling-element bearing designed to handle combined radial and axial loads simultaneously. It features two rows of balls with angular contact, improving load distribution and rigidity. These bearings are commonly used in applications requiring high precision and stability.

Q: How to identify a double row angular contact ball bearing number?

A: Double row angular contact ball bearing numbers are standardized by industry codes like ISO or ABMA. The numbering typically includes series designations (e.g., 32xx or 33xx) reflecting size and design. Specific numbers can be cross-referenced in manufacturer catalogs for exact specifications.

Q: What are the advantages of double row angular contact ball bearings?

A: Double row angular contact ball bearings offer higher load capacity and stiffness compared to single-row designs. They accommodate bidirectional axial loads and reduce the need for complex bearing arrangements. Their compact design saves space in machinery like gearboxes and pumps.

Q: Where can I find a double row angular contact ball bearing catalogue?

A: Manufacturer websites (e.g., SKF, NSK, Timken) provide downloadable PDF catalogs with detailed specifications. Industrial suppliers like Grainger or RS Components also offer online catalogs. Customized catalogs can be requested directly from bearing distributors.

Q: What distinguishes double angular contact bearings from other types?

A: Double angular contact bearings uniquely combine two rows of balls at opposing contact angles to manage bidirectional axial and radial loads. Unlike single-row bearings, they eliminate the need for paired mounting. This design enhances performance in high-speed or high-load environments like automotive transmissions.

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