7006 ACD/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
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7006 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The 7006 ACD/P4ATBTB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set consists of three individual bearings, preloaded to Light / Class B specifications, delivering superior system stiffness and rotational accuracy. Its 25° contact angle is optimized to handle significant combined loads, including radial and axial loads in both directions. Manufactured to P4A tolerance class, it is ideal for high-speed spindles and other precision machinery where minimal runout and high reliability are critical.
7006 ACD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class with running accuracy better than ABEC 7 (P4). |
| TBT | Specifies a Triplex Back-to-Back matched arrangement of three bearings. |
7006 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system, capable of resisting complex moment loads and minimizing shaft deflection under heavy cutting forces or operational stresses.
- Superior Load Capacity: The 25° contact angle and the use of three bearings in a set significantly increase the radial dynamic load rating (6660 lbf) and static load rating (5130 lbf), enabling reliable performance under demanding combined load conditions.
- High-Speed Capability: The lightweight phenolic cage ensures stable operation and low friction, contributing to a high limiting speed of 53,000 rpm. The open design allows for efficient lubrication management.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional tolerances on bore, outside diameter, and width, this bearing guarantees minimal vibration and high running accuracy for precision applications.
7006 ACD/P4ATBTB Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring ultra-fine surface finishes.
- High-Frequency Motor Spindles
- Industrial Pumps and Compressors operating at high speeds.
