S71917 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71917 CD/P4ADGA Bearing Product Overview & Core Advantages
The S71917 CD/P4ADGA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Operating under P4A tolerance class, this bearing excels in handling combined radial and axial loads simultaneously. Its extra light preload (Class A) minimizes deflection under light loads, ensuring smooth, high-speed operation. The sealed design with pre-lubrication offers long-term reliability, making it ideal for high-performance spindles and precision machinery where uncompromising accuracy is paramount.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S71917 | Basic bearing designation (85mm bore, 120mm OD, 36mm width) |
| C | 15° contact angle |
| D | Optimized internal geometry for high-speed performance |
| P4A | High-precision tolerance class (exceeding ABEC 7) |
| DG | Universal matchable bearing pair |
| A | Extra light preload |
S71917 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4A tolerance class with extra light preload, this bearing provides exceptional dimensional stability and minimal runout, crucial for maintaining precision in demanding applications.
- Superior Load Capacity: The 15° contact angle and optimized internal design enable it to handle significant combined loads (radial and axial) efficiently.
- Optimized High-Speed Performance: The phenolic resin cage offers low friction and excellent dimensional stability at high speeds, contributing to a limiting speed of 17,000 rpm.
- Sealed & Lubricated for Life: As a sealed bearing pre-filled with high-performance grease, it operates reliably within a temperature range of -30°C to 110°C, reducing maintenance needs.
- Universal Matching (SU): Designed as a universal matchable bearing, it can be paired with another identical bearing in various arrangements (DB, DF, DT) to achieve the required stiffness and load configuration.
S71917 CD/P4ADGA Bearing Typical Application Areas
The S71917 CD/P4ADGA is engineered for high-precision, high-speed machinery, including:
- Machine Tool Spindles: CNC machining centers, grinding spindles, and milling spindles.
- Precision Robotics: High-accuracy robotic arms and joints.
- High-Frequency Motors & Spindles: Motors requiring minimal vibration and high rotational accuracy.
- Medical & Laboratory Equipment: Centrifuges and precision instruments.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical navigation components.
