S7022 CD/P4AQBCC
Sealed Super Precision Angular Contact Ball Bearings
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S7022 CD/P4AQBCC Bearing Product Overview & Core Advantages
The S7022 CD/P4AQBCC is a precision quadruplex matched bearing set designed for applications demanding exceptional rigidity and rotational accuracy. This metric angular contact ball bearing features a back-to-back (QBC) arrangement of four bearings, providing superior stability and the ability to handle significant combined loads (radial and axial) from both directions. Manufactured to an ultra-precise P4A tolerance class, it is engineered for high-speed operation and long-term reliability in demanding industrial environments. Its pre-greased and sealed design ensures consistent performance with minimal maintenance.
S7022 CD/P4AQBCC 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 single bearing width. |
| CD | Specifies a 15° contact angle and moderate preload (Class C). |
| P4A | Denotes a high-precision tolerance class with enhanced running accuracy requirements. |
| QBCC | Indicates a Quadruplex (4 bearings) Back-to-Back (QBC) matched set. The final "C" confirms the preload class. |
S7022 CD/P4AQBCC Bearing Structural Features & Performance Benefits
Exceptional Rigidity and Load Capacity: The quadruplex back-to-back arrangement creates an extremely rigid bearing system, capable of withstanding heavy combined loads and moments. This configuration provides stable support for spindles and shafts under complex loading conditions.
High-Speed Performance: The use of a lightweight, durable phenolic resin cage reduces centrifugal forces, contributing to the bearing's high limiting speed of 16,000 rpm. The optimized internal geometry further enhances high-speed capability.
Precision Operation: Manufactured to P4A tolerance class with tight dimensional control on bore diameter, outside diameter, and width, this bearing ensures minimal runout and vibration for superior machining or operational accuracy.
Sealed and Lubricated for Life: As a sealed bearing pre-filled with grease, it is protected from contamination and is ready for immediate installation, offering long service life with no relubrication required within its specified temperature range.
S7022 CD/P4AQBCC Bearing Typical Application Areas
The S7022 CD/P4AQBCC is ideally suited for high-performance machinery requiring utmost precision and stiffness, including:
- High-Speed Machine Tool Spindles (e.g., for milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-frequency Main Spindles
- Other industrial machinery where a pre-matched, high-rigidity bearing set is critical for performance.
