7219 CD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7219 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7219 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing excels in high-speed operations and can accommodate combined radial and axial loads. Its universal matchable (SU) design allows for flexible mounting in various preload configurations, making it an ideal choice for high-precision spindles and other critical machinery where reliability and performance are paramount.
7219 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| 7219 | Basic designation: 95 mm bore, 170 mm OD, 64 mm width |
| CD | Contact angle of 15° and universal matchable design (SU) |
| P4A | High-precision tolerance class with enhanced dimensional and running accuracy |
| DGB | Duplex bearing set, Light preload (Class B) |
7219 CD/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with a 15° contact angle and duplex configuration provides superior stiffness, enabling the bearing to handle significant combined loads efficiently.
Precision & Speed: Built to P4A tolerance standards and featuring a phenolic cage, this bearing ensures smooth operation and is optimized for high-speed applications up to 15,000 rpm.
Optimized Internal Geometry: With 15 precision balls of 23.812 mm diameter, the bearing offers balanced load distribution and reduced friction, contributing to extended service life and consistent performance.
Universal Matching: The SU designation allows for versatile mounting in pairs to achieve the desired preload and rigidity without selective matching, simplifying installation and maintenance.
7219 CD/P4ADGB Bearing Typical Application Areas
The 7219 CD/P4ADGB is ideally suited for high-performance machinery requiring precision and high-speed capabilities. Common applications include:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Drives and Precision Positioning Systems
