7006 ACD/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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7006 ACD/HCP4ADT Bearing Product Overview & Core Advantages
The 7006 ACD/HCP4ADT is a metric duplex tandem angular contact ball bearing engineered for exceptional precision and performance in demanding applications. This precision bearing features a P4A tolerance class and is preloaded, delivering superior running accuracy, high system rigidity, and excellent rotational stability. Its duplex tandem (DT) arrangement is specifically designed to handle high axial loads in one direction, making it an ideal solution for high-speed spindles and other precision machinery requiring uncompromising accuracy and high rigidity.
7006 ACD/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | Duplex arrangement. |
| HC | Hybrid Ceramic: Features ceramic balls and steel rings. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DT | Duplex Tandem: Two bearings matched for increased axial load capacity in one direction. |
7006 ACD/HCP4ADT Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (72,500 rpm). This construction also provides superior resistance to electrical erosion and operates effectively with minimal lubrication.
- Preload & High Rigidity: Supplied as a preloaded duplex set, this bearing eliminates internal clearance, resulting in exceptional system rigidity and precise shaft positioning, which is critical for high-precision machining.
- Optimized Load Capacity: The 25° contact angle and tandem arrangement are engineered to support very high axial loads from one direction, with a dynamic load rating of 4972 lbf.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high speeds, contributing to the bearing's overall high-speed performance and durability.
- Precision Engineering: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances for consistent, high-accuracy performance in the most demanding applications.
7006 ACD/HCP4ADT Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for applications where maximum rigidity and axial load capacity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Robotics: High-accuracy robotic arms and joints.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and other critical rotating assemblies.
- High-Frequency Motors and Spindles
