7022 CE/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
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7022 CE/P4ADBA Bearing Product Overview & Core Advantages
The 7022 CE/P4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a matched duplex pair in back-to-back (DB) arrangement, it is pre-configured to provide superior stability and can accommodate combined loads (radial and axial loads simultaneously). Its P4A tolerance class ensures ultra-precision operation, making it ideal for high-speed spindles and other critical machinery where high rigidity and minimal runout are paramount.
7022 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series designation, indicating a 110 mm bore, 170 mm OD, and 56 mm width. |
| C | Designates a 15° contact angle, optimized for carrying significant axial loads. |
| E | Indicates an optimized internal design, often for higher load capacity. |
| P4A | Specifies a very high precision tolerance class, exceeding ABEC 7 standards for superior running accuracy. |
| DB | Denotes a Duplex Back-to-Back matched set arrangement, providing high moment rigidity. |
| A | Specifies an Extra Light (Class A) preload for minimal friction and optimal high-speed performance. |
7022 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and tilting. This configuration, combined with the 15° contact angle, provides excellent capability for handling combined radial and axial loads.
Precision & High-Speed Performance: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing ensures extremely low vibration and noise levels. The phenolic cage offers low weight and excellent performance at the specified limiting speed of 10,000 rpm. The Extra Light preload (Class A) minimizes heat generation, making it suitable for high-speed applications.
Material & Construction: Both rings and balls are made from high-grade chrome steel, ensuring high durability and long service life under demanding operating conditions.
7022 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers.
- High-Speed Machining Centers: Where superior rigidity and accuracy are critical.
- Precision Grinding Spindles: Applications demanding minimal runout and vibration.
- Industrial Pumps & Compressors: For shafts requiring high-speed and precise axial positioning.
