7007 ACEGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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7007 ACEGA/HCP4AL Bearing Product Overview & Core Advantages
The 7007 ACEGA/HCP4AL is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single bearing features an extra light preload (Class A) and is manufactured to P4A tolerance class, ensuring ultra-precise rotational characteristics. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial forces efficiently. The use of ceramic balls and a phenolic cage contributes to its capability as a high-speed bearing, with a limiting speed of 56,000 rpm, while offering reduced weight and superior performance in challenging environments.
7007 ACEGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Standard bearing series designation, indicating bore diameter: 35 mm, outside diameter: 62 mm, and width: 14 mm. |
| AC | Angular Contact design, optimized for combined loads. |
| EGA | Universal Matchable (SU) bearing, one of a matched set of 2 bearings for precise axial and radial positioning. |
| HC | Hybrid Ceramic: Features ceramic balls for reduced weight, higher speed capability, and longer service life. |
| P4A | High precision tolerance class, providing extremely tight dimensional and running accuracy. |
7007 ACEGA/HCP4AL Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces friction and operating temperature, enabling higher limiting speeds and extended service life, especially in high-speed applications.
Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent guidance of the ceramic balls at very high rotational speeds, contributing to the bearing's overall high-speed performance and stability.
Precision Engineering & Preload: Manufactured to P4A tolerance class with an extra light preload (Class A), this bearing delivers superior running accuracy, minimal vibration, and high rigidity, which is critical for applications requiring precise shaft positioning.
Optimized Load Capacity: The 25° contact angle design provides an excellent balance, allowing the bearing to handle substantial combined radial and axial loads effectively.
7007 ACEGA/HCP4AL Bearing Typical Application Areas
This high-precision, hybrid ceramic angular contact bearing is ideally suited for advanced machinery and equipment where speed, accuracy, and reliability are paramount. Key application areas include:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace and Defense Systems
- Semiconductor Manufacturing Equipment
- Medical and Dental Handpieces
