S7015 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7015 CD/P4A Bearing Product Overview & Core Advantages
The S7015 CD/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a single-row bearing with a 15° contact angle, it is optimized to handle combined loads, carrying significant radial loads alongside thrust loads in one direction. Manufactured to P4 (ABEC-7) tolerance class, it ensures minimal runout and vibration, making it ideal for high-precision, high-reliability spindles and machinery. The bearing comes preloaded and lubricated from the factory, ensuring immediate operational readiness and consistent performance.
S7015 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7015 | Standard designation for a 75mm bore, 115mm OD angular contact ball bearing. |
| C | Designates a 15° contact angle. |
| D | Indicates a high rigid internal design. |
| P4A | Specifies the tolerance class P4 (ABEC-7) and that the bearing is supplied with a specific preload. |
| Sealed / Lubricated | The bearing is delivered as a sealed and pre-lubricated unit, protecting against contamination and ensuring long service life. |
S7015 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 15° contact angle and the P4 precision grade provides superior stiffness and running accuracy, critical for minimizing deflection under load in high-speed applications.
- Optimized Load Capacity: Engineered to support combined radial and axial loads simultaneously. With a dynamic load rating of 11,858 lbf and a static load rating of 11,025 lbf, it offers reliable performance under demanding conditions.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 11,000 rpm. The optimized internal geometry further enhances high-speed capability.
- Ready-to-Install & Long-Lasting: The bearing is supplied preloaded and lubricated, eliminating the need for complex setup. The integral seals protect the high-quality lubricant from contamination, ensuring a long, maintenance-free operational life within a temperature range of -30°C to 110°C.
S7015 CD/P4A Bearing Typical Application Areas
The S7015 CD/P4A is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: High-frequency motors and servo drives.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units.
- Medical Equipment: Dental handpieces and high-speed centrifuges.
