7210 ACDGB/P4A
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 ACDGB/P4A Bearing Product Overview & Core Advantages
The 7210 ACDGB/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered with P4A tolerance class, this bearing delivers superior rotational precision and dimensional stability. Its 25° contact angle and light preload (Class B) configuration enable optimal performance in handling combined radial and axial loads simultaneously. The phenolic cage and universal matching capability (SU) make it particularly suitable for high-speed spindle arrangements and precision machinery where rigid support and minimal thermal expansion are critical requirements.
7210 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loads |
| DGB | Universal Matchable (SU) with Light Preload | Enables precise bearing arrangements in sets of 3 |
| P4A | High Precision Tolerance Class | Superior dimensional accuracy and running precision |
7210 ACDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and minimal runout.
High-Speed Capability: The phenolic resin cage and optimized 15-ball configuration with 12.7mm diameter balls enable stable operation at limiting speeds up to 46,000 rpm.
Enhanced Load Capacity: With a 25° contact angle and radial dynamic load rating of 9,518 lbf, this bearing effectively handles combined loads while maintaining precision.
Universal Matching Design: The Universal Matchable (SU) feature allows for precise bearing arrangements in sets of three, providing optimal preload distribution and system rigidity.
Material Excellence: Constructed from chrome steel for both rings and balls, ensuring high durability and consistent performance across the operating temperature range of -30°C to 110°C.
7210 ACDGB/P4A Bearing Typical Application Areas
- • Machine Tool Spindles - High-precision machining centers and grinding machines
- • Precision Instrumentation - Measuring equipment and optical devices
- • High-Speed Motors - Industrial spindle motors and servo drives
- • Aerospace Components - Guidance systems and precision actuators
- • Medical Equipment - Dental handpieces and laboratory instrumentation
