7004 CD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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7004 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7004 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing is engineered to handle combined loads efficiently, offering superior performance in high-speed and high-precision environments. Its universal matchable (SU) design allows for flexible mounting arrangements, simplifying installation and ensuring optimal performance in complex systems. The bearing comes pre-lubricated and features an open design for applications with controlled environments or external lubrication systems.
7004 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7004 | Basic bearing series and size designation (20mm bore, 42mm OD) |
| CD | 15° contact angle and optimized internal design for high-speed operation |
| P4A | High precision tolerance class with enhanced running accuracy |
| DGA | Universal Matchable (SU) designation, indicating bearings are supplied in pairs for back-to-back (DB) or face-to-face (DF) mounting |
7004 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The angular contact design with a 15° contact angle and P4A tolerance class provides exceptional stiffness and running accuracy, making it ideal for machine tool spindles and other precision applications.
Superior Load Capacity: Engineered to handle significant combined radial and axial loads, with a dynamic load rating of 3150 lbf and static load rating of 1912 lbf.
High-Speed Performance: The phenolic cage and optimized internal geometry enable a high limiting speed of 121,000 rpm, suitable for demanding high-speed applications.
Universal Matching Capability: The Universal Matchable (SU) feature allows for simplified mounting in preload configurations, reducing assembly time and ensuring consistent performance.
7004 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotics and Automation Equipment
- Medical and Dental Equipment
