7022 ACDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7022 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7022 ACDGC/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, it is optimized to accommodate combined loads, handling significant radial loads and axial loads in one direction simultaneously. Its 25° contact angle and Moderate (Class C) preload deliver high system stiffness, making it ideal for high-speed spindles and other precision machinery where minimal deflection is critical. The bearing is Universal Matchable (SU), allowing for precise axial play adjustment when mounted with other bearings from the same manufacturing batch.
7022 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing designation indicating the bearing size (110mm bore, 170mm OD, 28mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | High internal capacity design. |
| GC | Specifies a Moderate preload (Class C) for enhanced rigidity. |
| P4A | Indicates a high-precision tolerance class with running accuracy superior to ABEC-7/P4. |
7022 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Preload: The Moderate preload (Class C) eliminates internal clearance, resulting in superior high rigidity and precise shaft positioning, which is crucial for minimizing runout in high-speed applications.
- Optimized Load Capacity: The 25° contact angle and robust internal geometry provide an excellent balance, enabling the bearing to handle significant combined radial and axial loads efficiently.
- High-Speed Capability: The lightweight phenolic cage reduces centrifugal forces, while the precision-ground chrome steel components contribute to smooth operation and a high limiting speed of 16,250 rpm.
- Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional control on the bore, outside diameter, and width, ensuring consistent, high-performance operation in the most demanding precision bearing applications.
7022 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors & Spindles
- Precision Robotics and Automation Equipment
- Aerospace & Defense Positioning Systems
- Medical Equipment such as high-speed dental handpieces and imaging scanners
