7022 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7022 ACE/HCP4A Bearing Product Overview & Core Advantages
The 7022 ACE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is designed to accommodate high combined loads, primarily thrust loads in one direction, with a 25° contact angle for optimal load distribution. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, while the ceramic ball and phenolic cage construction contribute to high-speed capability and reduced weight. This bearing is preloaded and pre-lubricated, making it an ideal, ready-to-install solution for high-rigidity and high-speed spindle systems.
7022 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| ACE | 25° Contact Angle, Preloaded | Optimized for high thrust load capacity and provides inherent rigidity. |
| HCP4A | Hybrid Ceramic (Si3N4) Balls, P4 Accuracy | Enables higher limiting speeds, reduced friction, and longer service life compared to all-steel designs. |
7022 ACE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and provides electrical insulation, enabling a limiting speed of 17,500 rpm.
- Phenolic Resin Cage: This lightweight and robust cage material offers excellent dimensional stability at high speeds and is well-suited for the demanding conditions of precision bearing applications.
- Preload & High Rigidity: The bearing is supplied with a preload, which eliminates internal clearance. This results in superior shaft positioning accuracy and high system stiffness, critical for machining precision.
- Superior Load Capacity: With a dynamic load rating of 10,102 lbf and a static load rating of 9,562 lbf, this bearing reliably handles significant combined radial and axial loads.
- Precision Ground Rings: Manufactured to P4 tolerance with tight bore and outside diameter tolerances, ensuring smooth and quiet operation with minimal runout.
7022 ACE/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for electric motors operating at very high RPM.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
