71916 CDGC/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71916 CDGC/P4A Bearing Product Overview & Core Advantages
The 71916 CDGC/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Operating under the P4A tolerance class, this single bearing is part of a universally matchable set, allowing for flexible arrangements to achieve optimal preload and system stiffness. Its key advantage lies in its ability to handle combined loads efficiently, making it an ideal choice for high-speed, high-precision machinery where reliability is paramount.
71916 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing designation, indicating a metric, angular contact bearing with an 80 mm bore, 110 mm OD, and 16 mm width. |
| CD | Contact angle designation of 15°. |
| GC | Indicates a Moderate Preload (Class C). |
| P4A | Specifies the high-precision tolerance class, exceeding standard ABEC 7/ISO P4 levels for superior running accuracy. |
| Open (Seal Type) | No contact seals, optimized for high-speed performance with minimal friction. |
| SU (Universal Matchable) | Bearing is part of a universally matchable set, allowing any combination of bearings from the set to be mounted together to achieve the desired preload. |
71916 CDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A tolerance class with a 15° contact angle and a Moderate (Class C) preload, this bearing delivers exceptional system stiffness and running accuracy, critical for minimizing deflection under load.
Superior Load Capacity: The optimized internal geometry and use of chrome steel for rings and balls provide a high dynamic load rating of 8190 lbf and static load rating of 8775 lbf, enabling reliable performance under significant combined radial and axial loads.
Optimized High-Speed Performance: The phenolic cage and open design contribute to low friction and heat generation, supporting a high limiting speed of 28,000 rpm. The bearing is supplied lubricated for immediate operation.
Universal Matching Capability: As a Universal Matchable (SU) bearing supplied in a set, it offers maximum flexibility for mounting configurations, simplifying the process of achieving precise preload in duplex or triplex arrangements.
71916 CDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Rotary Systems: Including indexing tables, robotic arms, and rotary encoders.
- High-Frequency Motors and Spindles: Where a high limiting speed and low running torque are essential.
- Medical and Laboratory Equipment: Such as centrifuges and precision scanners demanding quiet and accurate operation.
