S7005 CEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7005 CEGA/P4A Bearing Product Overview & Core Advantages
The S7005 CEGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single bearing with Universal Matchable (SU) designation, it can be precisely paired with another identical bearing to form a pre-loaded duplex set, optimizing performance for combined loads. Its P4A tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other critical machinery where minimal runout and high system rigidity are paramount.
S7005 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7005 | Standard bearing series designation with 25mm bore, 47mm OD. |
| C | Specific internal design and 15° contact angle. |
| E | Optimized internal design for enhanced performance. |
| GA | Indicates a specific preload level (Extra light / Class A). |
| P4A | The tolerance class, denoting very high precision for bore, outer diameter, and width. |
S7005 CEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance class with a 15° contact angle, this bearing provides superior axial and radial stiffness, ensuring stable operation under combined loads.
- Optimized High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 83,000 rpm. The standard grease lubrication is suitable for this operational range.
- Superior Material Construction: Made from chrome steel for both rings and balls, it offers high durability and fatigue resistance. The sealed design protects against contamination.
- Universal Matching (SU): This feature allows for the creation of precisely matched bearing sets (back-to-back, face-to-face, or tandem) directly from stock, simplifying assembly and ensuring optimal preload and performance.
S7005 CEGA/P4A Bearing Typical Application Areas
The S7005 CEGA/P4A is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and spindle drives requiring high accuracy and rigidity.
- High-Frequency Motors: Spindles for PCB drilling and other precision machining.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
- Aerospace Instrumentation: Gyroscopes and other critical navigation components.
