S7017 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7017 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7017 ACDGA/P4A is a precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to accommodate combined loads (radial and bidirectional axial loads) simultaneously, this bearing features an extra light preload (Class A) for minimal running noise and vibration. Its compact design, combined with a P4A super precision tolerance class, makes it ideal for high-speed spindles and other high-rigidity applications requiring superior rotational accuracy and long-term reliability.
S7017 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7017 | Basic bearing series, indicating a double row angular contact ball bearing with specific bearing dimensions (85mm bore, 130mm OD, 22mm width) |
| AC | Angular Contact design with a 25° contact angle |
| DGA | Universal Matchable (SU) bearing, supplied in a set of 3 bearings for precise preload matching |
| P4A | Super precision tolerance class exceeding ABEC 7 standards for exceptional running accuracy |
S7017 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior stiffness and can handle significant combined loads. With a radial dynamic load rating of 14,332 lbf and static rating of 13,950 lbf, it offers robust performance in demanding applications.
High-Speed Performance: The phenolic cage and optimized internal geometry enable a limiting speed of 17,000 rpm, making it suitable for high-speed applications. The 25° contact angle provides excellent axial load capacity while maintaining high-speed capability.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration.
Pre-Lubricated & Sealed: Factory-filled with grease lubrication and featuring sealed construction for long-term performance within the temperature range of -30°C to 110°C.
S7017 ACDGA/P4A Bearing Typical Application Areas
The S7017 ACDGA/P4A is ideally suited for precision applications requiring high speed, accuracy, and rigidity, including:
- Machine tool spindles and high-precision machining centers
- High-speed motor spindles and precision grinding applications
- Industrial pumps and compressors requiring precise shaft guidance
- Precision instruments and medical equipment
- Robotics and automation systems demanding high positional accuracy
