7007 CE/P4ATBTA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7007 CE/P4ATBTA Bearing Product Overview & Core Advantages
The 7007 CE/P4ATBTA is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This P4A tolerance class bearing is supplied as a matched triplex set in a back-to-back (TBT) arrangement, enabling it to handle combined radial and axial loads simultaneously. Its extra light preload (Class A) ensures minimal deflection and smooth operation, making it ideal for high-precision, high-rigidity systems where stability under load is critical.
7007 CE/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Standard bore diameter (35 mm) and series designation. |
| CE | Contact angle of 15°. |
| P4A | High precision tolerance class, exceeding ABEC 7 standards. |
| TBT | Indicates a Triplex Back-to-Back matched set of 3 bearings. |
| A | Specifies Extra Light Preload on the matched set. |
7007 CE/P4ATBTA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back arrangement creates an extremely rigid bearing system capable of withstanding heavy combined loads and moments. The 15° contact angle is optimized for sustaining significant axial loads in both directions.
Precision & High-Speed Performance: Manufactured to P4A tolerance class with tight dimensional control, this bearing ensures minimal runout and vibration. The lightweight phenolic cage contributes to lower inertia, supporting a high limiting speed of 56,000 rpm. The bearings are pre-lubricated for immediate operation.
Material & Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability and fatigue life. The open seal design allows for customized lubrication schemes in advanced applications.
7007 CE/P4ATBTA Bearing Typical Application Areas
This high-precision, matched bearing set is engineered for the most demanding applications, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Robotics and Automation Arms
- High-Frequency Spindles for PCB drilling and routing
- Medical Equipment (e.g., high-speed dental handpieces)
- Aerospace Actuation Systems
