7007 CD/P4ADGD
7000 Series Super Precision Angular Contact Ball Bearings
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7007 CD/P4ADGD Bearing Product Overview & Core Advantages
The 7007 CD/P4ADGD is a precision angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This universal matchable (SU) bearing features a 15° contact angle and heavy preload (Class D), making it ideal for machine tool spindles and other high-precision equipment. Its P4A tolerance class ensures superior running accuracy, while the phenolic cage enables stable operation at high speeds up to 56,000 rpm.
7007 CD/P4ADGD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, universal matchable design | Optimized for combined radial and axial loads |
| P4A | High precision tolerance class | Superior running accuracy and minimal vibration |
| DG | Heavy preload (Class D) | Enhanced rigidity and precise shaft positioning |
| D | Universal matchable bearing | Flexible mounting arrangements in pairs |
7007 CD/P4ADGD Bearing Structural Features & Performance Benefits
High Rigidity Design: The heavy preload (Class D) configuration provides exceptional stiffness, minimizing deflection under heavy cutting forces and ensuring precise machining operations.
Superior Load Capacity: With a 15° contact angle and optimized internal geometry, this bearing effectively handles combined radial and axial loads, featuring a dynamic load rating of 5,738 lbf and static load rating of 4,275 lbf.
High-Speed Performance: The phenolic cage material and precision manufacturing enable reliable operation at limiting speeds up to 56,000 rpm, making it suitable for high-speed spindle applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), ensuring consistent performance in demanding precision applications.
7007 CD/P4ADGD Bearing Typical Application Areas
- Machine Tool Spindles: CNC machining centers, grinding spindles, and milling machines
- Precision Industrial Equipment: High-speed routers, precision grinders, and coordinate measuring machines
- Automation Systems: Robotics, high-precision positioning systems, and servo motors
- Aerospace Components: Gyroscopes, navigation systems, and aircraft control mechanisms
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging devices
