7022 ACEGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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7022 ACEGA/HCP4AL Bearing Product Overview & Core Advantages
The 7022 ACEGA/HCP4AL is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single bearing features an Extra Light (A) preload and is manufactured to P4A tolerance class, ensuring ultra-precise rotational characteristics. Its 25° contact angle is optimized to handle significant combined loads, efficiently supporting both radial and axial forces. The use of ceramic balls and a phenolic cage contributes to its capabilities as a high-speed bearing, offering reduced friction, lower operating temperatures, and extended service life. It is also Universal Matchable (SU), allowing for precise preload control when used in sets.
7022 ACEGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series, with 110 mm bore and 170 mm outside diameter. |
| AC | Angular Contact design. |
| EGA | Specific internal design and contact angle (25°). |
| HCP4A | Hybrid Ceramic (balls), Phenolic cage, and P4A super-precision tolerance class. |
| L | The bearing is Lubricated from the factory. |
7022 ACEGA/HCP4AL Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces friction and heat generation, enabling higher limiting speeds and providing electrical insulation. This makes it an ideal high-speed bearing.
- Precision & Rigidity: Manufactured to P4A tolerance class with an Extra Light preload (Class A), this bearing delivers exceptional running accuracy, minimal vibration, and high system rigidity for precise positioning applications.
- Optimized Load Capacity: The 25° contact angle is engineered to effectively support combined radial and axial loads simultaneously, making it suitable for complex load conditions.
- High-Speed Phenolic Cage: The lightweight and robust phenolic resin cage ensures stable operation at the high limiting speed of 16,250 rpm, offering excellent strength and guidance under centrifugal forces.
- Universal Matching: Designated as Universal Matchable (SU), these bearings can be mounted in sets (back-to-back, face-to-face, or tandem) to achieve specific preload and stiffness requirements without selective assembly.
7022 ACEGA/HCP4AL Bearing Typical Application Areas
This high-precision, high-speed angular contact ball bearing is ideally suited for advanced machinery and systems, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and auxiliary power units.
- High-Frequency Motors and Spindles: Where low friction and high rotational accuracy are critical.
- Medical Equipment: Dental handpieces and advanced imaging scanner gantries.
