S71916 CDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S71916 CDGB/P4A Bearing Product Overview & Core Advantages
The S71916 CDGB/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. As a universally matchable single bearing with a P4A tolerance class and light preload (Class B), it delivers superior rotational accuracy and rigidity. Its 15° contact angle is optimized to handle combined loads, efficiently supporting both radial and axial forces. The sealed design with grease lubrication ensures long-term reliability and minimal maintenance, making it ideal for high-precision, high-reliability spindle applications.
S71916 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71916 | Super-precision angular contact ball bearing series with 80mm bore diameter |
| CD | 15° contact angle design |
| GB | Light preload (Class B) |
| P4A | Super precision tolerance class (equivalent to ABEC 7) |
S71916 CDGB/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 15° contact angle and 27 chrome steel balls provide excellent combined load capacity, with dynamic load rating of 8190 lbf and static load rating of 8775 lbf.
High-Speed Performance: The phenolic cage and optimized internal geometry enable high-speed operation up to 28,000 rpm, while maintaining stability and low heat generation.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be paired in sets of 2 for precise preload control and optimal stiffness in bearing arrangements.
Sealed & Lubricated Design: The sealed construction with grease lubrication provides contamination protection and extended service life within the operating temperature range of -30°C to 110°C.
S71916 CDGB/P4A Bearing Typical Application Areas
Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines requiring exceptional accuracy and high-speed capability.
Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus where minimal runout and vibration-free operation are critical.
High-Speed Motors: Spindle motors, high-frequency motors, and precision drive systems demanding super-precision bearings with reliable performance.
Robotics & Automation: Precision robotic joints, rotary tables, and automated positioning systems requiring high rigidity and accurate motion control.
