71914 ACE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71914 ACE/P4ADGA Bearing Product Overview & Core Advantages
The 71914 ACE/P4ADGA is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. Engineered to a P4A tolerance class, it delivers exceptional running accuracy and dimensional stability. Its key advantage lies in its ability to support combined loads (radial and axial) simultaneously, making it an ideal choice for spindles and other precision machinery requiring superior rotational performance and minimal runout.
71914 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 71914 | Bearing series and size designation | Indicates a 70mm bore, 100mm OD, 32mm width bearing from the 719 series. |
| ACE | 25° contact angle and enhanced design | Optimized for high axial load capacity and high-speed performance. |
| P4A | Tolerance class | Denotes super-precision grade with very tight dimensional and running accuracy tolerances. |
| DGA | Universal Matchable (SU) pairing designation | Specifies that the bearing is supplied lubricated and is part of a universally matchable set (2 bearings) for precise preload configuration. |
71914 ACE/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The 25° contact angle and precision-ground raceways are engineered to provide high resistance to deflection under combined loads, ensuring stability in demanding applications.
Superior High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and contributes to the high limiting speed of 31,000 rpm. This makes it an excellent high-speed bearing for spindle applications.
Precision and Longevity: Manufactured to P4A super-precision standards from high-grade chrome steel, this bearing guarantees exceptional running accuracy, low heat generation, and extended service life.
Universal Matchability (SU): As a Universal Matchable bearing, any two 71914 ACE/P4ADGA bearings can be mounted together in a back-to-back, face-to-face, or tandem arrangement to achieve the required stiffness and preload, simplifying inventory and assembly.
71914 ACE/P4ADGA Bearing Typical Application Areas
This super-precision angular contact ball bearing is specifically designed for high-performance machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and rotary actuators requiring high accuracy and rigidity.
- High-Frequency Motors and Spindles: Where minimal vibration and high rotational accuracy are critical.
- Medical Equipment: Dental handpieces and imaging device rotors.
- Aerospace Instrumentation: Gyroscopes and other precision navigation systems.
