S71906 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71906 CE/P4A Bearing Product Overview & Core Advantages
The S71906 CE/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Positioned in the P4 (ABEC-7) tolerance class, it delivers superior running accuracy for demanding operational environments. Its key advantage lies in its ability to accommodate combined loads—significant radial loads alongside substantial axial loads in one direction—making it an ideal component for systems requiring high stiffness and precise shaft guidance. The bearing comes preloaded and pre-lubricated from the factory, ensuring immediate, reliable performance and simplifying installation.
S71906 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Suffix | Technical Meaning |
|---|---|
| S7 | Indicates a series of high-precision angular contact bearings. |
| 1906 | Denotes the bearing size: 30mm bore, 47mm outside diameter, 9mm width. |
| CE | Signifies a 15° contact angle and a specific internal design optimized for high-speed operation and rigidity. |
| P4A | Defines the tolerance class (P4, equivalent to ABEC-7) and indicates that the bearing is supplied with a specific preload. |
S71906 CE/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured from high-grade chrome steel for both rings and balls, and featuring a phenolic resin cage, this bearing achieves excellent dimensional stability and high-speed capability. The 15° contact angle is optimally designed to handle high axial loads in one direction while providing superior stiffness.
Optimized Load Capacity: With a dynamic load rating of 1258 lbf and a static load rating of 731 lbf, it is engineered to manage significant combined radial and axial loads.
High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 41,000 rpm. The bearing is pre-lubricated to ensure consistent performance at these elevated speeds.
Sealed and Ready-to-Use: As a sealed bearing, it is protected from contamination. The factory-applied lubrication and integral seals make it a maintenance-free solution for the specified operating temperature range of -30°C to 110°C.
S71906 CE/P4A Bearing Typical Application Areas
The S71906 CE/P4A is ideally suited for high-performance machinery and systems where precision and reliability are paramount. Common applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Handpieces
- Robotic Drives and Servo Motors
