S7015 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7015 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7015 ACDGA/P4A is a super-precision angular contact ball bearing engineered for applications demanding extreme rotational accuracy and high-speed capability. As a single bearing with an Extra light (Class A) preload, it delivers exceptional running accuracy and rigidity right out of the box. Its 25° contact angle is optimized to handle significant combined loads, managing both radial and axial forces simultaneously. Manufactured to the stringent P4A tolerance class, this bearing is the ideal choice for high-performance spindles and other precision machinery where uncompromising reliability and minimal runout are critical.
S7015 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7015 | Bearing series and size designation | Indicates a 75mm bore, 115mm OD, 20mm width super-precision bearing. |
| AC | Angular Contact | Designed for combined radial and axial loads. |
| D | Duplex (Universal Matchable) | Bearing is Universal Matchable (SU), allowing for precise preload setting when mounted with a counterpart. |
| GA | Preload Class | Specifies an Extra light preload (Class A), minimizing friction and heat generation for ultra-high speeds. |
| P4A | Tolerance Class | Denotes a super-precision tolerance grade, exceeding ABEC 7/ISO Class 4, for exceptional dimensional and running accuracy. |
S7015 ACDGA/P4A Bearing Structural Features & Performance Benefits
- Super-Precision Construction: Manufactured to P4A tolerance class with extremely tight bore, OD, and width tolerances, ensuring minimal vibration and superior positional accuracy in the application.
- Optimized for High-Speed Operation: The combination of a lightweight phenolic cage, extra light preload, and 25° contact angle enables a high limiting speed of 22,000 rpm, making it ideal for high-speed spindles.
- High Load Capacity: With a dynamic load rating of 11,115 lbf and a static load rating of 10,462 lbf, this bearing offers robust performance for demanding combined load conditions.
- Universal Matching Design (SU): The Universal Matchable (SU) feature allows bearings to be paired in a duplex set (e.g., DB or DF) to achieve the required rigidity and preload without selective matching, simplifying installation and inventory.
- Premium Materials: Constructed from high-grade chrome steel for rings and balls, providing excellent wear resistance and long service life under high-stress conditions.
S7015 ACDGA/P4A Bearing Typical Application Areas
The S7015 ACDGA/P4A is specifically designed for high-end, precision-driven applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other instrumentation requiring ultra-precise rotation.
