S7007 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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S7007 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7007 CE/P4ADBA is a precision duplex angular contact ball bearing designed for the most demanding high-performance applications. This matched set of two bearings in a Back-to-Back (DB) arrangement delivers exceptional rotational accuracy and system rigidity. Its core advantage lies in its ability to support combined loads (radial and axial) simultaneously while maintaining high-speed capability and operational stability. Manufactured to a P4A tolerance class, it is the ideal choice for machine tool spindles and other precision equipment requiring superior running accuracy and high rigidity.
S7007 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7007 | Bearing Series & Size | Denotes a 35mm bore, 62mm OD, 28mm width high-precision angular contact bearing. |
| C | 15° Contact Angle | Optimized for high-speed operation with balanced radial and axial load capacity. |
| E | Optimized Internal Design | Enhanced internal geometry for improved performance and speed. |
| P4A | Tolerance Class | Super-precision tolerance grade, exceeding ABEC 7/ISO P4, ensuring extreme running accuracy. |
| DB | Duplex Back-to-Back Arrangement | The two bearings are pre-matched and mounted to oppose each other, providing high moment rigidity. |
| A | Preload (Extra Light) | Specifies a minimal preload for very high-speed applications with reduced friction and heat generation. |
S7007 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that can withstand significant moment loads and combined loads. This configuration provides exceptional stability for precision spindles.
Super-Precision Performance: Manufactured to P4A tolerance class with a 15° contact angle, this bearing ensures minimal runout and vibration, which is critical for achieving superior surface finishes in machining operations.
Optimized High-Speed Capability: The combination of the phenolic resin cage (lightweight and robust), optimized internal geometry (E-design), and extra light preload (A) allows for a high limiting speed of 56,000 rpm, minimizing centrifugal forces and operational temperature.
Sealed & Pre-Lubricated: As a sealed bearing, it is protected from contamination and comes pre-lubricated with grease, simplifying installation and ensuring immediate, reliable operation.
S7007 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arm actuators.
- Medical Equipment: Dental handpieces and surgical drill spindles.
- Aerospace & Defense: Gyroscopes, navigation systems, and radar equipment.
