S7022 CDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7022 CDGB/P4A Bearing Product Overview & Core Advantages
The S7022 CDGB/P4A is a super-precision angular contact ball bearing designed for the most demanding applications. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with exceptional accuracy and stability. Manufactured to the stringent P4A tolerance class, this bearing offers superior running accuracy, high rigidity, and is optimized for high-speed operation. The phenolic cage and universal matching (SU) designation make it an ideal choice for high-precision spindle arrangements requiring uncompromising performance and reliability.
S7022 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7022 | Series designation for a 110mm bore, 170mm OD super-precision bearing. |
| C | 15° contact angle. |
| D | Two-piece phenolic (resin) cage. |
| G | Standard grease lubrication. |
| B | Light preload / Class B. |
| P4A | The tolerance class, denoting extremely high precision for spindle applications, with enhanced running accuracy requirements. |
S7022 CDGB/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The optimized internal geometry and 15° contact angle provide excellent support for combined loads, ensuring minimal deflection under operational stresses.
Superior High-Speed Performance: The lightweight phenolic cage is engineered for stability at high rotational speeds, contributing to the bearing's high limiting speed. The standard grease fill is selected for reliable performance within the specified speed and temperature range.
Exceptional Running Accuracy: Compliance with the P4A tolerance class ensures extremely tight dimensional and running accuracy, which is critical for applications requiring minimal vibration and high positional precision.
Universal Matching (SU): This bearing is universally matchable, allowing for simplified mounting in preloaded duplex sets (such as DB or DF arrangements) without selective assembly, which reduces complexity and cost in spindle design.
S7022 CDGB/P4A Bearing Typical Application Areas
The S7022 CDGB/P4A is engineered for high-performance machinery where precision and speed are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing equipment.
- High-Frequency Motors: Spindles for integrally mounted motor applications.
- Other Precision Equipment: Rotary tables, precision gearboxes, and medical imaging devices.
