7210 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7210 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7210 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running precision. Its universal matchable (SU) design allows two bearings to be arranged in any configuration (back-to-back, face-to-face, or tandem) to optimize performance for specific load conditions. The combination of a phenolic cage, extra light preload (Class A), and a 15° contact angle enables high-speed operation up to 41,000 rpm while providing excellent stability and stiffness.
Model Code Breakdown
- 7210: Basic series number (Bore: 50 mm, OD: 90 mm, Width: 40 mm)
- C: 15° contact angle
- D: Indicates the bearing is part of a universal matchable (SU) pair
- P4A: High precision tolerance class exceeding ABEC 7/ISO P4 standards
- DGA: Specific manufacturer designation for internal design and preload (Extra light / Class A)
7210 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The angular contact design and P4A tolerance class provide superior dimensional stability and running accuracy, essential for machine tool spindles and other high-precision equipment.
Optimized for Combined Loads: The 15° contact angle effectively handles combined radial and axial loads, making it suitable for applications with complex loading conditions.
High-Speed Capability: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 41,000 rpm, reducing centrifugal forces and heat generation.
Universal Matching: The SU designation means bearings can be universally paired, offering flexibility in mounting arrangements to achieve desired preload and stiffness without selective matching.
7210 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
- Medical and Dental Equipment
