7005 CD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7005 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7005 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. As a universal matchable (SU) bearing supplied in a light preload (Class B) duplex set, it provides superior axial rigidity and can accommodate combined radial and axial loads. Manufactured to P4A tolerance class with a phenolic cage, this bearing delivers reliable operation in high-precision machinery where minimal runout and consistent performance are critical.
7005 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series with 25mm bore diameter |
| CD | Duplex arrangement with universal matching capability |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DGB | Light preload (Class B) for optimal stiffness and positioning accuracy |
7005 CD/P4ADGB Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (±0.004mm on diameters), ensuring minimal vibration and precise rotational accuracy.
Optimized Contact Design: 15° contact angle provides balanced load distribution between radial and axial directions, making it ideal for combined load applications.
High-Speed Capability: The phenolic cage and precision-ground chrome steel components enable operation at limiting speeds up to 103,000 rpm, suitable for demanding spindle applications.
Universal Matching: As universal matchable (SU) bearings supplied in a pre-loaded duplex set, they can be mounted in various configurations (back-to-back, face-to-face, or tandem) without selective assembly.
Thermal Stability: The phenolic cage material maintains dimensional stability across the operating temperature range of -30°C to 110°C.
7005 CD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Instrumentation - Measuring equipment and optical devices requiring minimal runout
- High-Speed Motors - Spindle motors and servo motors demanding precise rotational accuracy
- Aerospace Components - Guidance systems and auxiliary power units
- Medical Equipment - Dental handpieces and laboratory automation systems
