7005 ACD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7005 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7005 ACD/P4ADGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a preloaded pair (DB arrangement), it delivers superior performance under combined radial and axial loads. Manufactured to P4A tolerance class with a 25° contact angle and light preload (Class B), this bearing is engineered for high-speed operation and outstanding dimensional stability in precision machinery.
7005 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, Universal Matchable Design | Optimized for combined loads and high-speed operation |
| P4A | High Precision Tolerance Class | Exceptional running accuracy and dimensional stability |
| DGB | Back-to-Back Paired Set with Light Preload | Enhanced rigidity and precise axial positioning |
7005 ACD/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design with 25° contact angle provides superior stiffness and can withstand significant combined radial and axial loads in both directions. The universal matching capability allows for flexible mounting arrangements.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore diameter tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration for precision applications.
High-Speed Performance: The phenolic cage material and optimized internal geometry contribute to excellent high-speed capabilities, with a limiting speed of 85,000 rpm. The open design facilitates efficient lubrication management.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, providing excellent wear resistance and durability. The bearing comes pre-lubricated and operates effectively within a temperature range of -30°C to 110°C.
7005 ACD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and optical devices
- High-Speed Motors - Servo motors and spindle drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and precision actuators
- Robotics - Joint actuators and precision positioning systems
