S7015 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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S7015 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7015 CE/P4ADBA is a super-precision angular contact ball bearing designed for the most demanding applications. This matched duplex set in a back-to-back (DB) arrangement delivers exceptional system rigidity and running accuracy. Engineered to a P4A tolerance class, it is optimized for high-speed operation while simultaneously supporting high radial loads and bidirectional axial loads. Its extra light preload (Class A) ensures precise shaft positioning with minimal friction, making it an ideal choice for machine tool spindles and other high-performance machinery requiring superior rotational accuracy and long-term reliability.
S7015 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CE | High-precision, contact angle of 15° | Optimized for high-speed performance and excellent axial load capacity. |
| P4A | Tolerance class superior to ABEC 7 (P4), with specific running accuracy requirements. | Guarantees extremely low vibration and superior running accuracy for critical applications. |
| DB | Duplex Back-to-Back arrangement (implied by matched set specification). | Provides high moment rigidity and excellent stability under complex loads. |
S7015 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system capable of withstanding combined radial and axial loads from both directions, as well as overturning moments. This design is critical for maintaining precision under heavy cutting forces or other complex loading conditions.
Super-Precision & High-Speed Performance: Manufactured to P4A tolerance class with a 15° contact angle and a lightweight phenolic resin cage, this bearing achieves a high limiting speed of 28,000 rpm. The precision-ground chrome steel components ensure smooth, quiet, and low-vibration operation.
Optimized for Performance: The extra light preload (Class A) minimizes friction and heat generation at high speeds while ensuring precise shaft guidance. The bearing is pre-lubricated with high-performance grease, making it ready for immediate installation and operation.
S7015 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arms.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instrumentation.
- Medical Equipment: Dental handpieces, CNC surgical tools.
