7011 ACD/P4ATBTG94
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
7011 ACD/P4ATBTG94 Bearing Product Overview & Core Advantages
The 7011 ACD/P4ATBTG94 is a precision angular contact ball bearing supplied as a matched triplex set in a back-to-back (TBT) arrangement. Engineered to the exacting P4A tolerance class, this bearing is designed for applications demanding exceptional running accuracy, high system rigidity, and the ability to handle significant combined loads (radial and axial). Its preloaded, matched set configuration ensures optimal performance and stability in high-precision machinery.
7011 ACD/P4ATBTG94 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7011 | Basic bearing series and size designation (55mm bore, 90mm OD). |
| ACD | Angular Contact design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class superior to ABEC 7. |
| TBT | Specifies a Triplex Back-to-Back matched set arrangement. |
| G94 | Manufacturer's code for the specific preload level applied to the matched set. |
7011 ACD/P4ATBTG94 Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The triplex back-to-back arrangement creates an extremely rigid bearing system, capable of supporting high moment loads and substantial combined radial and axial loads. The 25° contact angle is optimized for axial load carrying capacity.
Precision and High-Speed Performance: Manufactured to P4A tolerance standards, this bearing guarantees minimal runout and smooth operation. The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 34,000 rpm, making it suitable for high-speed applications.
Matched Set & Preload: Supplied as a factory-matched and preloaded set of three bearings, this ensures immediate operational readiness, eliminates internal clearance, and provides consistent, predictable stiffness from the moment of installation.
7011 ACD/P4ATBTG94 Bearing Typical Application Areas
The 7011 ACD/P4ATBTG94 is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles (e.g., for milling, grinding, and turning centers)
- High-frequency Spindles and Electric Motors
- Precision Gearboxes and Robotic Drives
- Axes requiring high stiffness in Industrial Automation systems
