7210 CDGA/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7210 CDGA/P4A Bearing Product Overview & Core Advantages
The 7210 CDGA/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A super precision tolerance, this bearing delivers superior running accuracy and dimensional stability. Its 15° contact angle provides optimal performance for combined loads, efficiently handling both radial and axial forces in one direction. The phenolic cage and universal matching capability make it ideal for high-speed spindle arrangements where preload control and thermal stability are critical.
7210 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 7210 | Basic designation: 50mm bore, 90mm OD, 20mm width | Standard dimension compatibility |
| CDGA | Contact angle 15°, Universal Matchable (SU), Extra light preload (A) | Optimized for high-speed applications with minimal friction |
| P4A | Super precision tolerance class | Exceptional running accuracy and dimensional stability |
7210 CDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and runout control.
Optimized Load Capacity: With a radial dynamic load rating of 10,102 lbf and radial static load rating of 7,650 lbf, this bearing delivers reliable performance under significant combined loads.
High-Speed Performance: The phenolic cage and optimized 15° contact angle enable a limiting speed of 41,000 rpm, making it suitable for demanding high-speed applications.
Thermal Stability: The phenolic cage material provides excellent dimensional stability across the operating temperature range of -30°C to 110°C.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be supplied in matched sets of 3 for precise preload control in spindle arrangements.
7210 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Machining Centers: CNC machining equipment requiring superior accuracy
- Precision Instrumentation: Measuring devices and laboratory equipment
- Robotic Systems: High-precision robotic joints and positioning systems
- Medical Equipment: Dental handpieces and surgical tool drives
- Aerospace Components: Guidance systems and precision actuators
