7019 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7019 CD/P4A Bearing Product Overview & Core Advantages
The 7019 CD/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to simultaneously handle combined radial and axial loads, this single bearing features a 15° contact angle and is supplied with a preload (P4A) for enhanced system stiffness and precise shaft positioning. Manufactured to P4 (ABEC-7) tolerance class, it is an ideal solution for high-speed, high-reliability machinery where uncompromising performance is critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7019 | Basic bearing series, defining the bore diameter (95 mm), outside diameter (145 mm), and width (24 mm). |
| CD | Indicates a specific contact angle (15°) and internal design optimized for high rigidity and precise operation. |
| P4 | Denotes the tolerance class P4 (ABEC-7), signifying very high dimensional and running accuracy. |
| A | Specifies that the bearing is supplied with a preload for increased system stiffness and reduced vibration. |
7019 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The angular contact design and factory-applied preload work in tandem to provide exceptional shaft support, minimizing deflection under load and ensuring precise rotational accuracy, which is critical for high-speed applications.
- Superior Load Capacity: Engineered to support combined loads efficiently, with a dynamic load rating of 18,428 lbf and a static load rating of 18,000 lbf. The 15° contact angle is optimized for sustaining significant axial loads in one direction alongside radial loads.
- Optimized High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 14,000 rpm. The bearing is pre-lubricated for immediate operation and sustained performance.
- Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability, wear resistance, and a long operational life under demanding conditions.
7019 CD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery where speed, accuracy, and rigidity are paramount. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
