S71922 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
S71922 CB/P4A Bearing Product Overview & Core Advantages
The S71922 CB/P4A is a single-row angular contact ball bearing engineered for high-precision applications demanding exceptional rotational accuracy and rigidity. Operating under the P4 (ABEC-7) tolerance class, this bearing is designed to accommodate combined loads, efficiently managing high radial loads and substantial axial loads in one direction. Its compact design, featuring a phenolic cage and preloaded configuration, makes it an ideal solution for machine tool spindles and other high-speed, high-reliability equipment.
S71922 CB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and excellent axial load capacity. |
| B | 40° Contact Angle | Provides higher axial rigidity compared to standard angles. |
| P4A | Tolerance Class & Internal Clearance | Denotes P4 (ABEC-7) precision with specific internal clearance for preload, ensuring minimal runout and high system rigidity. |
S71922 CB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 15° contact angle and P4 precision ensures exceptional running accuracy and stiffness, which is critical for applications like machine tool spindles.
- Superior Load Capacity: Engineered to handle significant combined radial and axial loads, with a dynamic load rating of 5850 lbf and a static load rating of 6075 lbf.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 11,000 rpm. The standard lubrication is suitable for this operational range.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance, increases system stiffness, and enhances positional accuracy.
S71922 CB/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance machinery where accuracy and speed are paramount. Key sectors include:
- Machine Tool Spindles: For milling, grinding, and turning centers.
- High-Speed Motors and Spindles: In PCB drilling, precision engraving, and dental handpieces.
- Precision Instrumentation: Including measuring devices and optical scanners.
- Robotics: For high-accuracy joints and arm assemblies.
