71914 ACD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71914 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 71914 ACD/P4ADGA is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a universal matchable (SU) bearing supplied in a set of two, it is engineered to accommodate combined loads (radial and axial) simultaneously. Its P4A tolerance class and extra light preload (Class A) ensure exceptional running accuracy and minimal heat generation, making it ideal for high-precision spindles and machinery requiring ultimate performance and reliability.
71914 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing series and size designation (70mm bore, 100mm OD, 32mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a universal matchable (SU) bearing designed to be paired in any combination (DB, DF, DT). |
| P4A | Indicates a super-precision tolerance class, with enhanced running accuracy and dimensional stability. |
| DGA | Specifies the extra light preload (Class A), optimized for high-speed operation with minimal friction. |
71914 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and universal matching capability allow two bearings to be precisely paired, creating a system with exceptional rigidity that can handle significant combined radial and axial loads.
Super-Precision High-Speed Performance: The P4A tolerance and phenolic cage contribute to smooth operation and low vibration at high rotational speeds, with a limiting speed of 28,000 rpm. The standard lubrication is suitable for the specified temperature range.
Optimized for Precision Arrangements: The universal matchable (SU) feature provides flexibility in mounting configurations (back-to-back, face-to-face, or tandem) without performance degradation, simplifying design and assembly for complex spindle systems.
71914 ACD/P4ADGA Bearing Typical Application Areas
This super-precision angular contact ball bearing is ideally suited for applications requiring high speed, high accuracy, and high system rigidity, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Robotics and Automation Systems
- High-Frequency Motors and Spindle Drives
- Aerospace & Defense Instrumentation and Gyroscopes
- Medical Equipment such as dental handpieces and imaging devices
