7006 ACD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7006 ACD/P4A Bearing Product Overview & Core Advantages
The 7006 ACD/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to simultaneously handle combined radial and axial loads, this single-row bearing features a 25° contact angle for optimal thrust capacity. Manufactured to P4 (ABEC-7) tolerance class, it ensures minimal runout and vibration, making it ideal for high-speed, high-reliability machinery. Its phenolic resin cage contributes to smooth operation at elevated speeds, while the factory-applied lubrication ensures immediate readiness for service.
7006 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Standard bearing series designation, indicating a 30mm bore, 55mm OD, and 13mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high-precision, high-rigidity internal design. |
| P4 | Indicates a P4 (ABEC-7) tolerance class for superior dimensional and running accuracy. |
| A | Denotes that the bearing is supplied with a specific preload for enhanced stiffness. |
7006 ACD/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The optimized internal geometry, combined with a P4 tolerance class, provides superior shaft positioning accuracy and system stiffness, critical for minimizing deflection under load.
Superior Load Capacity: The 25° contact angle enables the bearing to efficiently support significant axial loads in one direction alongside radial loads, making it suitable for combined loading conditions.
High-Speed Capability: The lightweight and robust phenolic resin cage ensures stability and low friction at the limiting speed of 43,000 rpm, reducing centrifugal forces and heat generation.
Optimized for Performance: Manufactured from chrome steel for both rings and balls, the bearing offers high fatigue life. It is pre-lubricated to operate reliably within a temperature range of -30°C to 110°C.
7006 ACD/P4A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications requiring high speed, rigidity, and accuracy, including:
- Machine Tool Spindles
- High-Frequency Motors and Spindles
- Precision Grinding Equipment
- Robotic Drives and Actuators
- Medical and Dental Equipment
- Aerospace Control Systems
