S7011 CE/P4ADBA
Sealed 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
S7011 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7011 CE/P4ADBA is a high-precision duplex back-to-back angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched pair bearing set features an extra light preload (Class A) and a P4A super-precision tolerance class, making it ideal for high-speed spindles and other precision machinery. Its duplex DB arrangement provides superior stiffness and can accommodate combined radial and axial loads from both directions, ensuring stable performance under demanding operating conditions.
S7011 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing series, indicating a 55mm bore, 90mm OD, and 36mm width. |
| CE | Specific internal design and geometry optimized for high performance. |
| P4A | Super-precision tolerance class, exceeding ABEC 7 standards for minimal runout and vibration. |
| DB | Duplex Back-to-Back arrangement. This configuration provides high moment rigidity. |
| A | Extra light preload class, minimizing friction and heat generation for higher limiting speeds. |
S7011 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and complex combined loads. This design is critical for maintaining accuracy in machine tool spindles.
Super-Precision Performance: Manufactured to a P4A tolerance class with tight dimensional control on bore, outside diameter, and width, this bearing ensures minimal runout and smooth, quiet operation.
Optimized High-Speed Operation: The combination of a phenolic resin cage (lightweight and robust), a 15° contact angle, and an extra light preload allows for a high limiting speed of 46,000 rpm, reducing centrifugal forces and operational temperature.
Sealed & Pre-Lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is ready for immediate use, offering long-term, maintenance-free operation within its specified temperature range.
S7011 CE/P4ADBA Bearing Typical Application Areas
The S7011 CE/P4ADBA is engineered for high-performance applications where precision and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- High-Frequency Spindles: PCB drilling and routing machines.
- Medical Equipment: Dental handpieces and high-speed scanners.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instruments.
