S7003 CD/P4ADFB
Sealed Super Precision Angular Contact Ball Bearings
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S7003 CD/P4ADFB Bearing Product Overview & Core Advantages
The S7003 CD/P4ADFB is a precision duplex angular contact ball bearing configured in a Face-to-Face (DF) arrangement. Engineered to the exacting P4A tolerance class, this matched set delivers exceptional rotational accuracy and stability. Its primary advantage lies in its ability to support combined radial and axial loads from both directions simultaneously, making it an ideal solution for applications demanding high rigidity and precise shaft positioning. The sealed design and pre-lubrication ensure long-term, maintenance-free operation in demanding environments.
S7003 CD/P4ADFB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7003 | Basic bearing designation, indicating a 17mm bore, 35mm OD, and 20mm width. |
| C | 15° contact angle, optimized for carrying significant axial loads. |
| D | Specifies a duplex pair of bearings. |
| P4A | Indicates a high-precision tolerance class for superior running accuracy. |
| DF | Denotes the Face-to-Face arrangement, which provides high moment rigidity. |
| B | Specifies a Light preload (Class B) to eliminate internal clearance and enhance stiffness. |
S7003 CD/P4ADFB Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The duplex DF arrangement creates a highly rigid bearing system capable of withstanding combined loads and tilting moments. The light preload ensures zero operational clearance, maximizing system stiffness and positioning accuracy.
Precision Performance: Manufactured to P4A tolerance class with a phenolic cage, this bearing ensures smooth operation, low vibration, and noise, which is critical for high-speed applications up to 85,000 rpm.
Durability and Maintenance: The sealed design effectively excludes contaminants, while the grease lubrication is suitable for a wide temperature range from -30°C to 110°C, offering long service life with minimal maintenance.
S7003 CD/P4ADFB Bearing Typical Application Areas
The S7003 CD/P4ADFB is designed for high-performance machinery requiring precision and rigidity. Its typical applications include:
- Machine Tool Spindles
- High-Speed Grinding Spindles
- Precision Rotary Tables
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
