S7019 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7019 CD/P4A Bearing Product Overview & Core Advantages
The S7019 CD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and exceptional rotational accuracy. Positioned in the P4 (ABEC-7) tolerance class, it is designed to handle significant axial loads in one direction combined with moderate radial loads. Its key advantages include high-speed capability facilitated by a phenolic cage and preload availability, which ensures minimal axial play and enhanced system rigidity. The bearing comes sealed and pre-lubricated, offering immediate installation and reliable, long-term performance in demanding environments.
S7019 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7019 | Basic bearing designation, indicating a metric, single-row angular contact ball bearing with a 95mm bore. |
| CD | Indicates a specific contact angle of 15° and internal design optimized for high rigidity and load capacity. |
| P4A | Specifies the P4 (ABEC-7) tolerance class, denoting very high dimensional and running accuracy for precision applications. |
S7019 CD/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance class standards with a 15° contact angle, this bearing provides exceptional running accuracy and stiffness, making it ideal for applications where shaft deflection must be minimized.
- Superior Load Capacity: The optimized internal geometry and use of 21 high-grade chrome steel balls enable it to support high dynamic (18,428 lbf) and static (18,000 lbf) radial loads, as well as substantial one-direction axial loads.
- High-Speed Performance: The lightweight and robust phenolic resin cage ensures stable operation and reduced centrifugal forces, contributing to a high limiting speed of 8,500 rpm.
- Sealed & Lubricated for Life: The integrated seals protect against contamination, and the factory-applied lubrication ensures consistent performance across a wide operating temperature range of -30°C to 110°C, reducing maintenance needs.
S7019 CD/P4A Bearing Typical Application Areas
The S7019 CD/P4A is suited for high-precision, high-speed machinery where reliability is critical. Common applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- Aerospace Actuators and Control Systems
