71916 CDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71916 CDGA/P4A Bearing Product Overview & Core Advantages
The 71916 CDGA/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle is optimized to handle significant combined loads (radial and axial) simultaneously. The bearing comes pre-lubricated and is part of a universal matchable (SU) set, allowing for flexible mounting configurations in high-speed spindle arrangements to achieve optimal preload and performance.
71916 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| CDGA | Universal match bearing set with specific preload (Extra Light / Class A) | Enables precise bearing arrangement with minimal deflection under light loads; bearings can be mounted in any combination. |
| P4A | High-Precision Tolerance Class | Guarantees extremely tight dimensional and running accuracy for applications demanding superior performance. |
71916 CDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single row design with a 15° contact angle and P4A tolerance class provides high stiffness and exceptional running accuracy, essential for precision machinery.
- Superior Load Capacity: Engineered to support significant combined radial and axial loads, making it ideal for applications with complex loading conditions.
- Optimized High-Speed Performance: The phenolic resin cage offers low friction and high strength, contributing to a high limiting speed of 28,000 rpm. The design is balanced for minimal vibration at high rotational speeds.
- Universal Matching Capability (SU): As part of a universal matchable set, these bearings can be arranged in tandem, back-to-back, or face-to-face configurations to achieve the desired preload and system rigidity without selective matching.
- Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability, wear resistance, and consistent performance under the specified temperature range of -30°C to 110°C.
71916 CDGA/P4A Bearing Typical Application Areas
The 71916 CDGA/P4A is specified for high-performance applications where precision, speed, and reliability are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling spindles, high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arm actuators.
- Medical Equipment: Dental handpieces, laboratory centrifuges.
- Aerospace & Defense: Gyroscopes, navigation systems, and other precision instruments.
