71914 ACBGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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71914 ACBGA/HCP4AL Bearing Product Overview & Core Advantages
The 71914 ACBGA/HCP4AL is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. This single bearing features an Extra Light (A) preload and is manufactured to P4A super-precision tolerance, ensuring minimal runout and superior rotational accuracy. Its 25° contact angle and ceramic ball construction enable it to handle combined loads efficiently while offering outstanding high-speed capabilities with a limiting speed of 28,000 rpm. The phenolic resin cage and pre-applied lubrication make it ideal for machine tool spindles and other high-performance machinery.
71914 ACBGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing designation (70mm bore, 100mm OD, 16mm width) |
| AC | Angular Contact design |
| B | 40° contact angle (modified to 25° for this specific bearing) |
| GA | Universal Matchable (SU) - can be paired in any combination |
| HC | Hybrid Ceramic - ceramic balls with steel rings |
| P4A | Super precision tolerance class (equivalent to ABEC 7) |
71914 ACBGA/HCP4AL Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls provides superior performance through reduced friction, lower operating temperatures, and extended service life. Ceramic balls are electrically insulating and provide excellent corrosion resistance.
Precision Engineering: Manufactured to P4A tolerance class, this bearing ensures minimal vibration and noise, making it suitable for high-speed applications. The tight dimensional tolerances on bore, outside diameter, and width guarantee consistent performance.
High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio and operates effectively at high speeds up to 28,000 rpm. The cage design ensures proper ball guidance and distribution.
Universal Matching: As a Universal Matchable (SU) bearing, it can be paired with identical bearings in any combination (back-to-back, face-to-face, or tandem) without preload variation, providing design flexibility.
Load Capacity: With a dynamic load rating of 2925 lbf and static load rating of 2655 lbf, this bearing handles significant combined radial and axial loads efficiently.
71914 ACBGA/HCP4AL Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- High-Speed Motors - Electric motors and spindles requiring minimal vibration
- Precision Instrumentation - Medical equipment and measuring devices
- Aerospace Components - Guidance systems and auxiliary power units
- Semiconductor Manufacturing - Wafer handling and processing equipment
- Robotics - High-precision robotic arms and joints
