S7017 ACDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7017 ACDGB/P4A Bearing Product Overview & Core Advantages
The S7017 ACDGB/P4A is a super-precision double row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. Its design enables it to simultaneously support high combined loads—significant radial loads and bidirectional axial loads. Manufactured to the stringent P4A tolerance class, this bearing offers superior running accuracy, making it ideal for high-speed spindles and other high-precision machinery. The phenolic cage and preloaded universal matching (SU) configuration contribute to its outstanding performance in demanding operational environments.
S7017 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S7017 | Series designation for a super-precision double row angular contact ball bearing. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a double row bearing design. |
| GB | Indicates a Light preload (Class B). |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC 7 standards. |
S7017 ACDGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior stiffness, enabling stable support for combined radial and axial loads from both directions. This is critical for minimizing deflection in precision applications.
- Super-Precision Performance: Manufactured to P4A tolerance class with a 25° contact angle, this bearing ensures extremely low runout and smooth operation, which is essential for achieving high surface finishes and positional accuracy.
- Optimized for High Speeds: The lightweight phenolic resin cage offers excellent strength-to-weight ratio and guidance, contributing to the high limiting speed of 17,000 rpm. The standard grease lubrication is formulated for reliable performance within this range.
- Universal Matchable (SU): This bearing is part of a universally matchable set, allowing for flexible mounting arrangements (DB, DF, DT) without the need for selective assembly, simplifying inventory and installation.
S7017 ACDGB/P4A Bearing Typical Application Areas
The S7017 ACDGB/P4A is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, high-frequency motor spindles.
- Robotics: High-accuracy robotic arms and joints.
- Medical Equipment: Dental handpieces, imaging device rotors.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and other precision instrumentation.
