7019 ACD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7019 ACD/P4A
Basic Information
System of measurement
Metric
Weight
1.21 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
145 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
17122 lbf
Radial static load rating
17212 lbf
Limiting speed
13 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1039.27
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7019 ACD/P4A Bearing Product Overview & Core Advantages
The 7019 ACD/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it delivers superior running precision. Its key advantage lies in its ability to support combined loads, efficiently carrying significant radial loads and axial loads in one direction simultaneously. The 25° contact angle is optimized for high rigidity and thrust capacity, making it an ideal choice for high-speed spindles and other demanding machinery where precision and reliability are paramount.
7019 ACD/P4A 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 24 mm. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high rigid design and internal optimization. |
| P4A | Denotes a P4 (ABEC-7) tolerance class with specific running accuracy requirements. |
7019 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 25° contact angle provides high rigidity, enabling the bearing to effectively support combined radial and axial loads. The phenolic cage ensures stable operation under high loads.
- Precision & High-Speed Performance: Manufactured to P4 precision class with tight dimensional tolerances, it ensures minimal vibration and high running accuracy. The optimized internal geometry and phenolic cage contribute to a high limiting speed of 13,000 rpm.
- Optimized Internal Geometry: Featuring 21 precision balls made of chrome steel with a diameter of 15.875 mm, the bearing is designed for smooth operation and long service life.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance, increases system stiffness, and enhances positional accuracy in the application.
7019 ACD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors
- Robotic Arms and Precision Gearboxes
