S71916 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71916 CD/P4A Bearing Product Overview & Core Advantages
The S71916 CD/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, this bearing excels in handling combined loads, supporting significant radial loads alongside thrust loads in one direction. Its compact design, featuring a 16mm width, makes it ideal for space-constrained, high-speed applications such as precision spindles. The bearing comes preloaded and lubricated from the factory, ensuring immediate high performance and simplifying installation.
S71916 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S71916 | Basic bearing series designation | Indicates a 80mm bore, 110mm OD, 16mm width angular contact bearing. |
| CD | Contact angle and preload designation | Specifies a 15° contact angle and a specific preload grade for enhanced rigidity. |
| P4A | Tolerance class | Denotes a P4 (ABEC-7) precision level, ensuring extremely tight dimensional and running accuracy. |
S71916 CD/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and preload work in tandem to provide superior system stiffness, effectively resisting deflection under combined loads. With a dynamic load rating of 8190 lbf and a static load rating of 8775 lbf, it offers reliable performance in demanding conditions.
Optimized High-Speed Performance: The phenolic resin cage is lightweight and possesses excellent sliding properties, contributing to lower friction, reduced heat generation, and a high limiting speed of 11,000 rpm. The 15° contact angle is optimized for high-speed operation.
Precision and Longevity: Manufactured to P4 tolerance from high-grade chrome steel, this bearing guarantees minimal runout and vibration. The factory-applied lubrication ensures consistent performance from the start of operation.
S71916 CD/P4A Bearing Typical Application Areas
The S71916 CD/P4A is ideally suited for high-performance machinery where precision and speed are critical. Key application areas include:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads.
- High-Frequency Motors and Spindles: Used in PCB drilling and high-speed routing.
- Precision Instrumentation: In applications like optical scanners and measuring devices.
- Robotics: For high-accuracy joints and arm assemblies.
