71914 ACEGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71914 ACEGA/P4A Bearing Product Overview & Core Advantages
The 71914 ACEGA/P4A is a single row angular contact ball bearing designed for exceptional precision and performance in demanding applications. Positioned in the ultra-precision P4A tolerance class, it delivers superior running accuracy and rotational stability. Its 25° contact angle is optimized to support high combined loads, effectively managing both radial and significant one-directional axial loads. Manufactured with phenolic cage and pre-lubricated, this bearing is engineered for high-speed operation and reliable service in precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing series and size designation |
| AC | Angular Contact design with 25° contact angle |
| E | Optimized internal design for enhanced performance |
| GA | Universal Matchable (SU) bearing in set of 3 with extra light preload (Class A) |
| P4A | Ultra-precision tolerance class exceeding ABEC 7 standards |
71914 ACEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal runout and exceptional dimensional stability, critical for high-precision applications. Bore and outside diameter tolerances of -0.004mm to 0 guarantee precise fit and optimal performance.
High-Speed Capability: The phenolic cage material provides excellent strength-to-weight ratio, reducing centrifugal forces and enabling operation at limiting speeds up to 31,000 rpm. This makes it ideal for high-speed spindle applications.
Superior Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing delivers outstanding radial dynamic load rating of 4,680 lbf and radial static load rating of 3,442 lbf, effectively handling combined loading conditions.
Universal Matching Design: The GA suffix indicates these bearings are supplied as a universally matchable set of three with extra light preload (Class A), allowing for flexible mounting arrangements in duplex configurations without additional selection or matching requirements.
71914 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications requiring ultra-precision bearings
- High-Speed Motors: Electric motor spindles and high-frequency applications demanding exceptional rotational accuracy
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus requiring minimal vibration and runout
- Aerospace Components: Guidance systems, gyroscopes, and other critical aerospace applications
- Medical Equipment: High-speed dental handpieces, surgical tools, and diagnostic imaging systems
