7026 CD/P4AQBCA
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7026 CD/P4AQBCA Bearing Product Overview & Core Advantages
The 7026 CD/P4AQBCA is a precision quadruplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set of four bearings in a back-to-back (QBC) arrangement provides superior stability and is preloaded to Extra light (Class A) specifications, ensuring minimal axial and radial runout. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high precision, making it ideal for high-speed, high-rigidity spindles. The open design and phenolic cage contribute to its outstanding high-speed performance.
7026 CD/P4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7026 | Basic bearing designation: 130mm bore, 200mm OD, 33mm single width. |
| CD | Contact angle of 15°. |
| P4A | High-Precision Tolerance Class (superior to ABEC 7/P4), with specific running accuracy requirements. |
| QBC | Quadruplex Back-to-Back arrangement. A matched set of four bearings mounted in two back-to-back pairs. |
7026 CD/P4AQBCA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Stability: The quadruplex back-to-back (QBC) arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, crucial for maintaining precision under heavy combined loads.
- Optimized for High Speeds: The lightweight phenolic cage reduces centrifugal forces, while the open design facilitates efficient lubrication and cooling, enabling a high limiting speed of 11,000 rpm.
- High Load Capacity: The 15° contact angle and optimized internal geometry provide a high dynamic and static load rating, ensuring long service life under demanding conditions.
- Precision Performance: Manufactured to P4A tolerance class with strict bore, OD, and width tolerances, this bearing guarantees smooth, quiet, and vibration-free operation essential for ultra-precise applications.
7026 CD/P4AQBCA Bearing Typical Application Areas
This bearing is engineered for the most demanding high-precision and high-speed machinery, including:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling spindles.
- Precision Grinding Equipment: Internal and external grinding machines.
- High-Frequency Motors and Spindles: Applications requiring minimal runout and high rotational accuracy.
