7007 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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7007 CDTP/HCP4B Bearing Product Overview & Core Advantages
The 7007 CDTP/HCP4B is a high-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. This single bearing features a 15° contact angle and is supplied with a preload, ensuring high system rigidity and minimal axial/radial runout. Its construction with ceramic balls and a phenolic cage enables superior performance under high centrifugal forces, making it ideal for machine tool spindles and other high-speed, high-rigidity applications.
7007 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Standard bearing series designation, indicating a 35mm bore, 62mm OD, and 14mm width. |
| CD | A 15° contact angle, optimized for high-speed operation and high rigidity. |
| T | Indicates a phenolic (textile laminate) cage, which is lightweight and ideal for high-speed applications. |
| P | The bearing is supplied with a preload for enhanced stiffness and precise rotational accuracy. |
| HCP4B | Defines the internal clearance, tolerance class, and cage type. P4 (ABEC-7) signifies a super-precision tolerance class for ultra-precise applications. |
7007 CDTP/HCP4B Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The combination of a 15° contact angle and an applied preload provides superior axial and radial stiffness, critical for minimizing deflection in high-precision spindles.
Exceptional High-Speed Capability: The use of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, allowing for a limiting speed of 28,000 rpm. This design minimizes friction and heat generation.
Superior Load Capacity: With a dynamic load rating of 3510 lbf and a static load rating of 2138 lbf, this bearing reliably handles combined radial and axial loads.
Precision Engineering: Manufactured to P4 (ABEC-7) tolerance standards, this bearing ensures extremely low runout and vibration levels, which is essential for achieving high surface finishes in machining operations.
7007 CDTP/HCP4B Bearing Typical Application Areas
The 7007 CDTP/HCP4B is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- Robotics: High-accuracy robotic arm joints and servo motors.
- Aerospace & Defense: Gyroscopes, navigation systems, and other critical instrumentation.
