S7022 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7022 CE/P4A Bearing Product Overview & Core Advantages
The S7022 CE/P4A is a precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with P4 (ABEC-7) tolerance class, it delivers superior running precision. Its key advantage lies in its ability to accommodate combined loads—significant radial loads alongside substantial axial loads in one direction—thanks to its 15° contact angle. The bearing comes preloaded and pre-lubricated from the factory, ensuring immediate high-performance operation, optimal stiffness, and reduced vibration in high-speed applications.
S7022 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7022 | Basic bearing designation, indicating a 110 mm bore, 170 mm OD, and 28 mm width. |
| CE | Specifies a 15° contact angle and optimized internal geometry for high-speed operation. |
| P4 | Indicates a high-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration. |
| A | Denotes that the bearing is supplied with a preload for enhanced rigidity and precise shaft positioning. |
S7022 CE/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The single-row angular contact design with a 15° contact angle and factory-applied preload provides high system stiffness, minimizing deflection under load and ensuring precise shaft guidance.
Superior Load Capacity: Engineered to handle combined radial and axial loads simultaneously. With a dynamic load rating of 10,688 lbf and a static load rating of 10,125 lbf, it offers reliable performance in demanding conditions.
Optimized High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and allowing a limiting speed of 10,900 rpm. The standard factory lubrication is suitable for this high-speed range.
Durability and Reliability: Manufactured from chrome steel for both rings and balls, the bearing ensures high fatigue life. The sealed design retains lubrication and protects against contamination, supporting a wide operating temperature range of -30°C to 110°C.
S7022 CE/P4A Bearing Typical Application Areas
The S7022 CE/P4A is ideally suited for high-precision, high-speed machinery where rigidity and accuracy are paramount. Key applications include:
- Machine Tool Spindles for milling, grinding, and turning centers
- High-Frequency Motors and precision spindles
- Robotic Drives and automation equipment
- Medical Equipment such as dental handpieces and imaging devices
- Aerospace Actuation Systems and auxiliary power units
