7004 CE/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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7004 CE/P4ADGA Bearing Product Overview & Core Advantages
The 7004 CE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, it offers superior dimensional and running accuracy. Its 15° contact angle and Universal Matchable (SU) design enable it to handle combined radial and axial loads efficiently. The bearing is pre-lubricated and features an open design with a phenolic cage, making it an ideal choice for high-speed spindle applications and other precision machinery where reliability is critical.
7004 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Contact angle of 15° and Universal Matchable (SU) design. |
| P4A | High precision tolerance class, exceeding ABEC 7 standards, ensuring minimal runout and vibration. |
| DGA | Indicates a specific internal design and preload grade (Extra light / Class A). |
7004 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4A tolerance class and precise manufacturing ensure exceptional dimensional stability and minimal deflection under load, which is critical for machine tool accuracy.
- Optimized Load Capacity: The 15° contact angle is engineered to support significant combined loads (radial and axial), making it suitable for complex loading conditions.
- Superior High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 100,000 rpm. The open design facilitates efficient lubrication management.
- Universal Matching Capability: The Universal Matchable (SU) feature allows bearings to be mounted in pairs (back-to-back, face-to-face, or tandem) without selective matching, simplifying installation and achieving desired preload and stiffness.
7004 CE/P4ADGA Bearing Typical Application Areas
The 7004 CE/P4ADGA is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Equipment: Dental handpieces, small precision drills.
- High-Speed Motors: Servo motors, spindle motors.
- Robotics: Joints and arms requiring high precision and rigidity.
