S7017 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7017 CDGA/P4A Bearing Product Overview & Core Advantages
The S7017 CDGA/P4A is a precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high rigidity. Operating under the P4A tolerance class, it delivers superior running precision. Its design is optimized to handle combined loads, efficiently supporting both radial forces and significant thrust loads in one direction. The extra light preload (Class A) minimizes deflection under light loads, ensuring smooth operation and enhanced positional accuracy. With its phenolic cage and factory-applied grease lubrication, this bearing is a robust solution for high-speed and high-reliability machinery.
S7017 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Specifies a 15° contact angle and indicates this bearing is designed for universal matching (SU). Two bearings can be mounted together in a back-to-back (DB) or face-to-face (DF) arrangement to handle bidirectional axial loads. |
| G | Denotes the presence of a phenolic (polyamide) cage, which is lightweight and contributes to lower friction and higher limiting speeds. |
| A | Indicates the application of an extra light preload (Class A), which increases bearing rigidity and improves running accuracy. |
| P4A | Signifies an enhanced tolerance class with stricter limits on bore and outside diameter runouts, ensuring superior precision for the most demanding applications. |
S7017 CDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 15° contact angle and Class A preload provides a very stiff bearing system, minimizing axial and radial play under operational loads. This is critical for maintaining accuracy in precision spindles.
- Superior High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, allowing the bearing to achieve a high limiting speed of 28,000 rpm. This makes it ideal for high-speed machining and tooling applications.
- Optimized Load Capacity: With a dynamic load rating of 15,210 lbf and a static load rating of 14,738 lbf, this bearing is capable of handling significant combined radial and axial loads.
- Sealed and Lubricated for Life: As a sealed bearing pre-filled with high-quality grease, it is protected from contamination and is effectively maintenance-free within its specified temperature range (-30°C to 110°C).
S7017 CDGA/P4A Bearing Typical Application Areas
The S7017 CDGA/P4A is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: High-frequency motors and spindles.
- Industrial Pumps and Compressors: Applications requiring reliable operation under combined loads.
- Robotics and Automation: Precision joints and rotary axes.
