71914 ACDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71914 ACDGA/P4A Bearing Product Overview & Core Advantages
The 71914 ACDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 25° contact angle and extra light preload (Class A) make it ideally suited for handling combined loads, particularly high-speed applications where precise axial and radial load capacity is critical. The phenolic cage and universal matching (SU) capability further enhance its performance in complex, high-precision arrangements.
71914 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loads |
| D | High Contact Angle (25°) | Enhanced axial load capacity |
| GA | Universal Matchable (SU) | Enables precise preload in matched sets |
| P4A | High Precision Tolerance Class | Superior running accuracy and dimensional stability |
71914 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance in precision applications.
Optimized Load Capacity: The 25° contact angle design provides excellent combined load capacity, capable of handling significant radial and axial loads simultaneously while maintaining operational stability.
High-Speed Performance: Featuring a phenolic cage and optimized internal geometry, this bearing achieves a limiting speed of 29,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be paired in sets of two to achieve specific preload requirements without selective matching, simplifying installation and maintenance.
Premium Material Selection: Constructed from chrome steel rings and balls with phenolic cage, providing excellent durability, corrosion resistance, and stable performance across the operating temperature range of -30°C to 110°C.
71914 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Precision electric motors and servo drives
- Aerospace Systems: Aircraft instrumentation and control systems
- Medical Equipment: High-speed dental handpieces and surgical tools
- Precision Robotics: Industrial robot joints and positioning systems
- Semiconductor Manufacturing: Wafer handling equipment and precision positioning stages
