S7202 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7202 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7202 ACDGA/P4A is a precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to simultaneously handle combined loads (radial and bidirectional axial loads), its compact design offers a high-performance solution for high-reliability machinery. Featuring a P4A super-precision tolerance class and an extra light preload, this bearing ensures smooth operation, minimal vibration, and superior running accuracy, making it ideal for high-speed spindles and other precision equipment.
S7202 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| S | Super Precision | Denotes bearings manufactured to the highest dimensional and running accuracy standards. |
| 72 | Series Designation | Indicates a specific internal geometry optimized for high-speed and high-rigidity performance. |
| 02 | Bore Size Code (15mm) | Specifies the bearing bore diameter. |
| AC | 25° Contact Angle | Optimized for carrying significant axial loads in both directions. |
| D | Double Row Design | Provides high rigidity and increased load capacity in a compact footprint. |
| GA | Light Preload / Universal Matchable (SU) | Ensures precise shaft positioning and stiffness; bearings can be universally matched in any combination. |
| P4A | Tolerance Class | Exceeds ABEC 7/ISO P4 standards, guaranteeing ultra-precise bearing dimensions and minimal runout. |
S7202 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design, combined with a 25° contact angle, provides exceptional high rigidity and the ability to support substantial combined loads.
High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, while the optimized internal geometry contributes to a high limiting speed of 115,000 rpm, qualifying it as a superior high-speed bearing.
Sealed & Pre-Lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is maintenance-free for the duration of its service life within the specified temperature range of -30°C to 110°C.
Precision Engineering: Manufactured from chrome steel for both rings and balls, and adhering to the P4A tolerance class, this precision bearing delivers unmatched accuracy and longevity.
S7202 ACDGA/P4A Bearing Typical Application Areas
The S7202 ACDGA/P4A is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instrumentation: Measuring devices, optical scanners.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Robotics: High-accuracy joints and rotary actuators.
