7019 CD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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7019 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7019 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 excels in high-speed operations while simultaneously handling combined radial and axial loads. Its universal matchable (SU) design allows for flexible mounting configurations in preloaded pairs, delivering optimized performance and high rigidity in demanding industrial environments.
7019 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle with universal matchable design | Optimized for combined loads and flexible mounting arrangements |
| P4A | High precision tolerance class | Superior running accuracy and minimal vibration |
| DGA | Extra light preload (Class A) | Reduced friction and optimal high-speed performance |
7019 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and running accuracy.
Optimized Load Capacity: The 15° contact angle and 21 chrome steel balls (15.875 mm diameter) provide excellent combined load capacity, with dynamic rating of 29,925 lbf and static rating of 36,000 lbf.
High-Speed Performance: The phenolic cage and optimized internal geometry enable a limiting speed of 15,000 rpm, making it ideal for high-speed applications.
Universal Matching Capability: The SU designation allows bearings to be mounted in various preloaded arrangements (back-to-back, face-to-face, or tandem) without selective matching.
7019 CD/P4ADGA Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and precision grinding equipment
- Industrial pumps and compressors operating at elevated speeds
- Precision instruments and medical equipment
- Aerospace components demanding exceptional accuracy and reliability
