7200 ACDGA/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7200 ACDGA/P4A Bearing Product Overview & Core Advantages
The 7200 ACDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered with an Extra Light (A) preload and manufactured to the stringent P4A tolerance class, this bearing delivers superior rotational accuracy and rigidity. Its defining characteristic is the 25° contact angle, which is optimized to support significant combined loads—handling both radial and axial forces simultaneously. The phenolic cage and universal matching (SU) capability make it an ideal, compact solution for high-speed spindles and precision machinery requiring reliable, long-lasting performance.
7200 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| AC | Angular Contact | Optimized for combined radial and axial loads. |
| DGA | Extra Light Preload (Class A) | Reduces deflection and vibration for enhanced precision in high-speed applications. |
| P4A | High Precision Tolerance Class | Exceeds ABEC 7 standards, ensuring extremely tight dimensional and running accuracy. |
7200 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row design with a 25° contact angle and Class A preload provides excellent shaft positioning accuracy and system stiffness, minimizing runout under operational stresses.
- Superior Load Capacity: Engineered to handle combined loads effectively, making it suitable for applications with complex force vectors. The radial dynamic load rating of 981 lbf ensures reliable performance under demanding conditions.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 185,000 rpm. This is critical for high-speed spindle applications.
- Universal Matching (SU): Bearings are universal matchable, allowing for flexible mounting arrangements (back-to-back, face-to-face, or tandem) to create precise bearing sets that meet specific application requirements for preload and rigidity.
7200 ACDGA/P4A Bearing Typical Application Areas
The 7200 ACDGA/P4A is specified for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instruments: Measuring equipment, optical scanners.
- High-Speed Motors: Servo motors, turbo-molecular pumps.
- Aerospace & Defense Systems: Gyroscopes, navigation systems.
