7005 CE/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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7005 CE/HCP4ADGB Bearing Product Overview & Core Advantages
The 7005 CE/HCP4ADGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with ceramic balls and manufactured to P4A super-precision tolerance, this bearing delivers superior high-speed capability and rigidity. Its universal matchable (SU) design allows for flexible mounting in various preload configurations, making it an ideal solution for machine tool spindles and other high-performance rotary systems where combined loads and minimal runout are critical.
7005 CE/HCP4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series and size designation (25mm bore, 47mm OD). |
| C | 15° contact angle. |
| E | Optimized internal design for enhanced performance. |
| HC | Hybrid Ceramic construction (ceramic balls with steel rings). |
| P4A | Super-precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| D | Light preload / Class B. |
| GB | Pre-lubricated with specific high-performance grease. |
7005 CE/HCP4ADGB Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The use of ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables a limiting speed of 56,000 rpm. This construction also provides superior resistance to electrical erosion and operates effectively with minimal lubrication.
High Rigidity & Load Capacity: The angular contact design with a 15° contact angle is optimized to handle combined radial and axial loads simultaneously. The phenolic cage ensures smooth operation at high speeds while maintaining dimensional stability.
Precision Engineering: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications requiring high rotational accuracy. The universal matchable (SU) feature allows two bearings to be mounted in any configuration (DB, DF, DT) to achieve the desired preload and stiffness.
7005 CE/HCP4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Robotics: High-accuracy robotic arms and joints.
- High-Speed Motors: Spindles for PCB drilling and dental handpieces.
- Aerospace & Defense: Gyroscopes, radar systems, and navigation instruments.
- Medical Equipment: Centrifuges and high-speed imaging devices.
