7011 CD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7011 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7011 CD/P4ADGB is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high rigidity. As a universally matchable (SU) bearing supplied in a preloaded duplex set, it is engineered to handle combined loads (radial and axial) simultaneously with high stability. Its P4A tolerance class and light preload (Class B) ensure smooth, quiet operation at high speeds, making it an ideal choice for high-performance spindles and precision machinery.
7011 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | A 15° contact angle and specific internal design for high-speed, high-precision applications. |
| P4A | Denotes an ultra-precision tolerance class with extremely tight running accuracy limits for spindle applications. |
| DGB | Indicates a universally matchable (SU) duplex set. Two bearings are supplied as a pre-mounted and preloaded pair, ready for installation. |
7011 CD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex pair configuration provides high rigidity and significantly increased moment stiffness, enabling stable performance under combined loads.
- Super-Precision Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for achieving superior surface finishes and machining accuracy.
- Optimized High-Speed Operation: The 15° contact angle and phenolic resin cage are optimized for high-speed applications, reducing centrifugal forces and friction for a limiting speed of 34,000 rpm.
- Universal Matchability (SU): Bearings with the SU designation can be mounted in any combination (back-to-back, face-to-face, or tandem) to achieve the required stiffness and load-carrying configuration for the application.
- Premium Materials: Constructed from chrome steel for rings and balls, ensuring high durability and long service life under demanding conditions.
7011 CD/P4ADGB Bearing Typical Application Areas
This high-precision bearing is specifically engineered for advanced machinery where accuracy and speed are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles
- High-Frequency Motors
- Industrial Pumps & Compressors
- Advanced Robotics and Automation Systems
