71914 CEGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 71914 CEGA/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 tolerance class, ensuring superior running accuracy and minimal vibration. Its 15° contact angle is optimized for handling combined loads, particularly high-speed applications requiring precise axial and radial guidance. The combination of a phenolic cage and ceramic balls contributes to its high-speed capability, low friction, and extended service life, making it an ideal choice for high-rigidity and high-speed spindle systems.
71914 CEGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing designation (70mm bore, 100mm OD, 16mm width) |
| CE | Contact angle of 15° |
| GA | Extra Light preload (Class A) |
| HCP4A | Universal Matchable bearing set to P4A tolerance class |
| L | Lubricated with performance grease |
Structural Features and Performance Benefits
High Precision and Rigidity: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing provides exceptional running accuracy and system stiffness. The Extra Light preload eliminates internal clearance, ensuring precise shaft positioning and reduced deflection under load.
High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at high speeds. Combined with ceramic (Si3N4) balls that reduce centrifugal forces and friction, the bearing achieves a limiting speed of 28,000 rpm.
Superior Load Capacity: With a 15° contact angle, the bearing effectively handles combined radial and axial loads. The dynamic load rating of 4,972 lbf and static load rating of 3,600 lbf ensure reliable performance in demanding applications.
Universal Matching Capability: Designated as Universal Matchable (SU), these bearings can be paired in any combination without performance degradation, simplifying inventory and assembly for preloaded bearing arrangements.
71914 CEGA/HCP4AL Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- Precision Instrumentation: Measuring equipment, optical scanners, and coordinate measuring machines
- High-Speed Motors: Servo motors, spindle motors, and high-frequency electric motors
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Medical Equipment: Dental handpieces, laboratory centrifuges, and imaging devices
