S7019 CB/P4A
Sealed 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
S7019 CB/P4A Bearing Product Overview & Core Advantages
The S7019 CB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with P4 (ABEC-7) tolerance class, it delivers superior running precision. Its key advantage lies in its ability to accommodate combined loads—simultaneously handling significant radial loads and axial loads in one direction. The bearing comes preloaded and lubricated from the factory, ensuring immediate high-performance operation, optimal stiffness, and reduced vibration in high-speed applications.
S7019 CB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7019 | Basic bearing series and size designation (95mm bore, 145mm OD, 24mm width). |
| CB | Specifies a specific contact angle (15°) and preload level, providing high rigidity and precise shaft positioning. |
| P4A | Denotes a high-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration for demanding applications. |
S7019 CB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and factory-applied preload (CB) eliminate internal clearance, resulting in maximum shaft rigidity and exceptional positional accuracy, critical for machine tool spindles.
- Superior Load Capacity: Engineered to support combined loads, with a high dynamic load rating of 6660 lbf, making it suitable for applications with significant radial and one-direction axial forces.
- Optimized High-Speed Performance: The lightweight phenolic resin cage ensures cage stability and low friction, contributing to a high limiting speed of 12,000 rpm. The sealed design retains lubrication effectively at high rotational speeds.
- Durability and Reliability: Manufactured from chrome steel for both rings and balls, the bearing offers high fatigue life. The sealed construction protects against contamination and retains the factory-applied lubricant, enhancing service life.
S7019 CB/P4A Bearing Typical Application Areas
The S7019 CB/P4A is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: High-frequency motors and spindles.
- Industrial Pumps and Compressors: For handling axial and radial loads in demanding fluid handling systems.
- Robotics and Automation: High-accuracy rotary joints and arm assemblies.
