7006 ACD/P4ATBTG77
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
7006 ACD/P4ATBTG77 Bearing Product Overview & Core Advantages
The 7006 ACD/P4ATBTG77 represents a premium precision angular contact ball bearing configured in a triplex back-to-back (TBT) matched arrangement. This advanced setup is engineered to deliver exceptional system rigidity and handle significant combined loads, including high radial and thrust loads from both directions. Manufactured to P4A tolerance class with a 25° contact angle, it provides superior running accuracy and positional stability, making it ideal for demanding high-speed, high-precision applications where maximum stiffness and minimal deflection are critical.
7006 ACD/P4ATBTG77 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Basic bearing series and size designation (30mm bore, 55mm OD). |
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration. |
| TBT | Specifies a Triplex Back-to-Back preloaded set of three bearings, offering maximum moment stiffness. |
| G77 | Internal designation for the specific preload level applied to the matched set. |
7006 ACD/P4ATBTG77 Bearing Structural Features & Performance Benefits
Optimized Rigidity and Load Capacity: The triplex back-to-back arrangement creates a wide, rigid support base, significantly increasing the system's resistance to moment loads and complex combined loads. This configuration allows the bearing set to withstand heavy radial loads and bidirectional axial loads simultaneously.
High-Speed Capability: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to the high limiting speed of 53,000 rpm. The open design and factory-applied lubrication facilitate efficient heat dissipation.
Precision Engineering: Manufactured from high-grade chrome steel for rings and balls, and held to a P4A tolerance class, this bearing ensures exceptional dimensional stability, low noise, and smooth operation essential for precision machinery.
Preload and Matched Set: Supplied as a pre-loaded set of three bearings, it eliminates internal clearance, providing immediate high stiffness and precise rotational accuracy without requiring complex adjustment during installation.
7006 ACD/P4ATBTG77 Bearing Typical Application Areas
This high-performance triplex bearing set is specifically designed for applications demanding the ultimate in precision, speed, and rigidity. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors: Spindles for CNC applications.
- Robotics: High-accuracy rotary joints and actuators.
