7005 ACD/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7005 ACD/P4ADT Bearing Product Overview & Core Advantages
The 7005 ACD/P4ADT is a precision duplex tandem angular contact ball bearing designed for high-performance applications requiring exceptional rigidity and accuracy. This matched bearing set is pre-loaded and configured in a tandem (DT) arrangement to handle significant axial loads in one direction. Manufactured to P4A tolerance class, it delivers superior running accuracy and rotational precision. Its compact design and high load capacity make it ideal for high-speed spindles and other demanding machinery where high rigidity and precise axial positioning are critical.
7005 ACD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7005 | Basic bearing series and size designation | 25mm bore, 47mm OD, 24mm width |
| AC | Angular Contact design | Optimized for combined radial and axial loads |
| D | Duplex arrangement | Two bearings mounted as a set |
| P4A | High precision tolerance class | Superior dimensional and running accuracy |
| DT | Tandem arrangement | Bearings arranged to handle axial loads in same direction |
7005 ACD/P4ADT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem configuration provides exceptional stiffness, enabling the bearing set to handle heavy axial loads while maintaining precise shaft positioning. With a 25° contact angle and 14 precision balls, it delivers optimal load distribution and superior performance under combined loads.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0), this bearing ensures minimal runout and vibration. The phenolic cage provides excellent strength-to-weight ratio and smooth operation at high speeds.
High-Speed Capability: Featuring a limiting speed of 85,000 rpm, the bearing is optimized for high-speed applications. The lightweight phenolic cage and precision-ground chrome steel components (rings and balls) contribute to reduced centrifugal forces and stable operation.
Pre-lubricated & Ready-to-Install: Factory-lubricated for immediate use, the bearing operates effectively within a temperature range of -30°C to 110°C, making it suitable for various industrial environments.
7005 ACD/P4ADT Bearing Typical Application Areas
This precision angular contact bearing is specifically designed for applications requiring high axial stiffness and precision, including:
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- High-Speed Motors - Spindle motors and high-frequency electric motors
- Precision Instrumentation - Measuring equipment and optical instruments
- Robotics - High-precision robotic joints and positioning systems
- Aerospace Components - Guidance systems and precision actuators
