7210 ACD/P4AQGC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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Materials
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7210 ACD/P4AQGC Bearing Product Overview & Core Advantages
The 7210 ACD/P4AQGC is a precision angular contact ball bearing designed for applications demanding high rigidity and exceptional running accuracy. Engineered to a P4A tolerance class, it is optimized to handle combined loads, supporting significant radial and axial loads simultaneously. Its universal matchable (SU) design allows for flexible mounting in various preload configurations, making it ideal for high-speed spindles and other precision machinery where reliability and performance are critical.
7210 ACD/P4AQGC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7210 | Basic bearing series, indicating a 50mm bore, 90mm OD, and 80mm width. |
| ACD | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| P4A | Indicates a high-precision tolerance class with very tight dimensional and running accuracy specifications. |
| QGC | Specifies the Moderate / Class C preload and the phenolic cage material, contributing to high-speed capability and thermal stability. |
7210 ACD/P4AQGC Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design with a 25° contact angle provides excellent resistance to combined radial and axial loads, ensuring stable operation under demanding conditions. The radial dynamic load rating of 25,200 lbf and static load rating of 29,025 lbf underscore its robust performance.
High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, enabling a high limiting speed of 46,000 rpm. This makes the bearing suitable for high-speed applications such as machine tool spindles.
Precision Engineering: Manufactured to P4A tolerance standards with tight bore, OD, and width tolerances, this bearing guarantees exceptional running accuracy and minimal vibration.
Universal Matchability (SU): This feature allows bearings to be mounted in pairs or sets (up to 4 in a matched set) in various configurations (back-to-back, face-to-face, or tandem) to achieve specific preload and stiffness requirements without selective assembly.
7210 ACD/P4AQGC Bearing Typical Application Areas
The 7210 ACD/P4AQGC is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Drives and Precision Instrumentation
