7013 CDGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7013 CDGA/P4A Bearing Product Overview & Core Advantages
The 7013 CDGA/P4A is a single row angular contact ball bearing designed for exceptional precision and performance in demanding applications. Engineered to accommodate combined loads, it primarily handles high axial loads in one direction while also supporting significant radial loads. Its P4A super precision tolerance and Universal Matchable (SU) designation ensure superior running accuracy and the ability to be mounted in preloaded arrangements for maximum system rigidity. The phenolic cage and optimized 15° contact angle contribute to its high-speed capabilities, making it an ideal choice for high-precision, high-speed spindles and other critical machinery.
7013 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CDGA | Indicates a specific internal design with a 15° contact angle and is Universal Matchable (SU). This allows for flexible mounting in duplex pairs (DB, DF, DT) to achieve various preload and stiffness characteristics. |
| P4A | Denotes a super precision tolerance class exceeding ABEC 7. This ensures extremely tight dimensional and running accuracy for applications requiring minimal vibration and superior rotational performance. |
7013 CDGA/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The P4A tolerance class and universal matching capability allow for precise preloading in pairs, resulting in a system with exceptionally high rigidity and minimal runout, crucial for machining accuracy.
- Optimized Load Capacity: The 15° contact angle is engineered to efficiently support high axial loads in one direction while maintaining a robust radial dynamic load rating of 9360 lbf.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 24,000 rpm. This cage material also offers excellent performance under poor lubrication conditions.
- Pre-Lubricated for Immediate Service: The bearing comes lubricated from the factory, ensuring immediate operation and protection during the initial run-in period.
7013 CDGA/P4A Bearing Typical Application Areas
The 7013 CDGA/P4A is specified 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 spindles.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and navigation instruments.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
