7006 ACD/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
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7006 ACD/P4ADBA Bearing Product Overview & Core Advantages
The 7006 ACD/P4ADBA is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This P4A tolerance class bearing features a back-to-back (DB) matched arrangement, providing superior stability and the ability to withstand combined radial and axial loads. With its extra light preload (Class A) and phenolic cage, it is engineered for high-speed operation and precise performance in demanding machinery.
7006 ACD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Basic bearing series with 30mm bore, 55mm OD, 26mm width |
| AC | Angular Contact design with 25° contact angle |
| D | Duplex (two bearings in set) |
| P4A | High precision tolerance class with specific running accuracy |
| DB | Back-to-Back mounting arrangement |
7006 ACD/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The back-to-back duplex arrangement creates a wide effective spread between load centers, significantly enhancing system rigidity and moment load capacity. This configuration provides excellent operational stability under complex loading conditions.
Precision Performance: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing ensures minimal runout and vibration for precise applications.
High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio, reduced friction, and superior performance at the limiting speed of 53,000 rpm. The 25° contact angle optimizes speed performance while maintaining good axial load capacity.
Enhanced Load Capacity: With a dynamic load rating of 4,972 lbf and static load rating of 3,442 lbf, this bearing handles significant combined loads. The duplex configuration effectively manages bidirectional axial loads and moment loads.
7006 ACD/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Gearboxes - Industrial transmission systems requiring high accuracy
- High-Speed Motors - Servo motors and spindle motors
- Medical Equipment - Dental handpieces and laboratory instrumentation
- Aerospace Components - Guidance systems and auxiliary power units
- Robotics - Precision joints and articulation points
