7200 CDGA/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7200 CDGA/P4A Bearing Product Overview & Core Advantages
The 7200 CDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running precision. Its extra light preload (Class A) minimizes deflection under light loads, making it ideal for high-speed spindles and precision instruments. The bearing is universally matchable (SU), allowing for precise axial play adjustment when mounted in pairs, and comes pre-lubricated for immediate operation.
7200 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7200 | Basic series designation, indicating a light series angular contact bearing with a 10mm bore. |
| C | Specifies a 15° contact angle, optimized for handling combined radial and axial loads. |
| DGA | Indicates a Universal Matchable (SU) bearing supplied with an Extra Light (Class A) preload. |
| P4A | Denotes a high-precision tolerance class with running accuracy requirements stricter than ABEC 7. |
7200 CDGA/P4A Bearing Structural Features & Performance Benefits
High-Speed Capability: The phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 185,000 rpm, making it a true high-speed bearing.
Precision & Rigidity: Manufactured to P4A tolerances with a 15° contact angle, this bearing provides high running accuracy and system rigidity, essential for minimizing vibration and deflection.
Combined Load Capacity: The angular contact design is engineered to support significant combined radial and axial loads simultaneously.
Matched Set Performance: As a universally matchable (SU) bearing, it can be paired with another identical bearing to form a duplex set, enabling precise control over internal clearance and preload for optimal stiffness.
7200 CDGA/P4A Bearing Typical Application Areas
The 7200 CDGA/P4A is ideally suited for high-performance applications requiring supreme precision and speed, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Dental and Medical Handpieces
- Aerospace Instrumentation
