71910 FE/P4ADBA
71900 Series Super Precision Angular Contact Ball Bearings
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71910 FE/P4ADBA Bearing Product Overview & Core Advantages
The 71910 FE/P4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As part of a matched duplex set in a Back-to-Back (DB) arrangement, it excels at handling combined loads, including significant radial loads and axial loads in both directions. Manufactured to the stringent P4A tolerance class, this bearing offers superior running accuracy and is preloaded for high rigidity and stable performance in high-speed applications.
71910 FE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| FE | Indicates a duplex set of two bearings supplied as a matched pair. |
| P4A | Denotes a super-precision tolerance class with enhanced dimensional and running accuracy requirements. |
| DB | Specifies the Back-to-Back arrangement of the duplex set, providing high moment rigidity. |
| A | Signifies an Extra Light preload for minimal friction and optimal high-speed performance. |
71910 FE/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex Back-to-Back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise shaft positioning.
- Superior Precision: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for high-precision machinery.
- Optimized High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and enabling a high limiting speed of 46,000 rpm. The 18° contact angle provides an excellent balance between axial load capacity and speed capability.
- Premium Material Construction: Made from chrome steel for both rings and balls, the bearing ensures high durability, wear resistance, and a long operational life under demanding conditions.
71910 FE/P4ADBA Bearing Typical Application Areas
The 71910 FE/P4ADBA is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Where extreme accuracy and surface finish are required.
- High-Frequency Motors and Spindles: Applications involving very high rotational speeds.
- Medical and Dental Equipment: Such as high-speed handpieces and scanners.
- Aerospace and Defense Systems: Including gyroscopes and navigation instruments.
