7019 CD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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7019 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7019 CD/P4ADGB is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Operating under the stringent P4A tolerance class, this bearing is engineered to handle combined loads efficiently, accommodating both high radial loads and significant axial loads in one direction. Its Universal Matchable (SU) design allows for flexible mounting in pairs to support bidirectional axial loads, offering a compact and highly reliable solution for high-precision machinery. The phenolic cage and optimized internal geometry contribute to its superior high-speed performance and operational stability.
7019 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7019 | Basic bearing series, indicating a metric bore diameter of 95 mm, outside diameter of 145 mm, and width of 48 mm. |
| C | Designates a 15° contact angle, optimized for high axial load capacity. |
| D | Indicates a Light preload (Class B), enhancing rigidity and minimizing deflection under operational loads. |
| P4A | Specifies the high-precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
| DB | Denotes a back-to-back matched arrangement for increased moment rigidity and stability. |
7019 CD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and Light preload provide superior stiffness, enabling the bearing to withstand significant combined radial and axial loads with minimal deformation.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the 15° contact angle and precision-ground components allow for a high limiting speed of 15,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with extremely tight bore, outside diameter, and width tolerances, ensuring consistent performance and smooth operation in the most demanding applications.
- Universal Matchability (SU): Bearings are universally matchable, allowing for simple pairing in back-to-back (DB) or other configurations to handle bidirectional axial loads and moments without requiring selective assembly.
7019 CD/P4ADGB Bearing Typical Application Areas
The 7019 CD/P4ADGB is ideally suited for high-precision, high-speed machinery where accuracy and rigidity are paramount. Key applications include:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
