7210 CDGA/P4
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7210 CDGA/P4 Bearing Product Overview & Core Advantages
The 7210 CDGA/P4 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior running precision and dimensional stability. Its 15° contact angle and extra light preload (Class A) are optimized for high-speed operation, making it an ideal solution for machine tool spindles and other precision equipment where minimal deflection and high reliability are critical.
7210 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
- 7210: Basic designation indicating 50mm bore, 90mm OD, 20mm width
- C: 15° contact angle design
- D: Universal Matchable (SU) bearing for paired arrangements
- G: Preload class designation
- A: Extra light preload specification
- P4: High precision tolerance class exceeding ABEC 7 standards
7210 CDGA/P4 Bearing Structural Features & Performance Benefits
This bearing's construction delivers significant performance advantages:
- High Precision & Rigidity: The P4 tolerance class ensures minimal runout and vibration, while the optimized internal geometry provides excellent stiffness for precision applications.
- Superior Speed Performance: The phenolic resin cage and optimized internal design enable a limiting speed of 41,000 rpm, making it suitable for high-speed spindle applications.
- Enhanced Load Capacity: With a dynamic load rating of 10,102 lbf and static load rating of 7,650 lbf, this bearing handles significant combined radial and axial loads effectively.
- Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be precisely paired in sets of three for optimal preload and performance in complex arrangements.
7210 CDGA/P4 Bearing Typical Application Areas
The 7210 CDGA/P4 excels in applications requiring high precision and speed:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Instrumentation: Measuring equipment and laboratory instruments
- High-Speed Motors: Spindle motors and high-frequency drives
- Aerospace Components: Gyroscopes and navigation systems
- Medical Equipment: Dental handpieces and surgical tools
