S7011 CD/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7011 CD/P4ADBB Bearing Product Overview & Core Advantages
The S7011 CD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This metric system bearing features a back-to-back (DB) matched arrangement and a light preload (Class B), making it ideal for handling combined radial and axial loads. Manufactured to P4A tolerance class, it delivers superior running accuracy and is pre-lubricated with grease for immediate use in high-speed, high-reliability machinery.
S7011 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S7011 | Basic bearing series and size designation. |
| C | 15° contact angle. |
| D | Duplex (two single bearings). |
| P4A | High precision tolerance class. |
| DB | Back-to-back matched arrangement. |
S7011 CD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement provides a wide effective spread of load-bearing points, significantly increasing system rigidity and stability. This configuration enables the bearing to effectively support combined loads (radial and moment loads) and bidirectional axial loads.
- Precision & High-Speed Performance: Manufactured to a P4A tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and excellent running accuracy. The optimized internal geometry and cage design contribute to a high limiting speed of 46,000 rpm, making it suitable for high-speed applications.
- Optimized Internal Design: The bearing incorporates 18 high-precision chrome steel balls with a diameter of 11.112 mm, ensuring smooth operation and high dynamic load capacity (14,332 lbf radial dynamic load rating).
- Sealed & Pre-Lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is ready for immediate installation, offering long-term, maintenance-free operation within its specified temperature range.
S7011 CD/P4ADBB Bearing Typical Application Areas
The S7011 CD/P4ADBB is engineered for high-performance applications where precision and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
