7022 ACB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7022 ACB/P4A Bearing Product Overview & Core Advantages
The 7022 ACB/P4A is a high-precision single row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. This metric bearing is distinguished by its P4 (ABEC-7) tolerance class, ensuring minimal runout and vibration for superior performance. Its primary advantage lies in its ability to accommodate high combined loads, efficiently handling significant radial loads and thrust loads in one direction due to its 25° contact angle. The phenolic resin cage and preloaded configuration contribute to its high-speed capability and operational stability, making it an ideal choice for high-performance spindles and precision machinery.
7022 ACB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACB | Indicates a specific internal design with a 25° contact angle and a preload applied. This optimizes the bearing for high rigidity and precise shaft positioning. |
| P4A | Denotes a high-precision tolerance class equivalent to ABEC-7. The 'A' suffix often specifies tolerances for the width and width tolerance of the bearing. |
7022 ACB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single row design with preload eliminates internal clearance, providing high system stiffness and accurate rotational guidance, which is critical for machine tool spindles.
- Superior Load Capacity: The optimized 25° contact angle enables the bearing to support substantial combined radial and axial loads simultaneously, enhancing its versatility in demanding applications.
- High-Speed Performance: The lightweight and robust phenolic resin cage ensures stable operation and reduced centrifugal forces, allowing for a high limiting speed of 14,000 rpm.
- Optimized for Precision Applications: Manufactured to P4 tolerance standards with tight dimensional controls on the bore, outside diameter, and width, guaranteeing consistent, high-accuracy performance.
- Material Integrity: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and a long operational life under heavy loads.
7022 ACB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads where high rigidity and running accuracy are paramount.
- Precision Grinding Equipment: Used in internal and external grinding machines that require minimal deflection and vibration.
- High-Frequency Motors and Spindles: Ideal for applications demanding high rotational speeds and precise shaft location.
- Industrial Pumps and Compressors: Suitable for pumps handling high thrust loads while maintaining efficient operation.
