71913 FE/HCPA9ALTGA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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71913 FE/HCPA9ALTGA Bearing Product Overview & Core Advantages
The 71913 FE/HCPA9ALTGA is a high-precision angular contact ball bearing engineered for demanding applications requiring superior accuracy and performance. Its design is optimized to support combined loads, handling both radial and axial forces simultaneously. Featuring a universal matchable (SU) design, it allows for flexible mounting arrangements in sets to achieve the desired rigidity and preload. Manufactured to an exceptionally tight PA9A tolerance class and utilizing ceramic balls, this bearing is ideal for high-speed operation and offers excellent dimensional stability, making it a critical component for high-reliability machinery.
71913 FE/HCPA9ALTGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| FE | Indicates a specific internal design and optimized geometry for high performance. |
| HC | Denotes the use of Hybrid Ceramic balls (Silicon Nitride), which reduce weight and centrifugal force, enabling higher speeds. |
| PA9A | Specifies the tolerance class, representing ultra-high precision with extremely tight dimensional and running accuracy tolerances. |
| LT | Refers to a Light Preload (Extra Light / Class A), which minimizes friction and heat generation while ensuring shaft rigidity. |
| GA | Indicates the bearing is supplied lubricated and ready for installation. |
71913 FE/HCPA9ALTGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction and operating temperature. This construction provides superior high-speed performance, extended service life, and enhanced resistance to electrical arcing.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent guidance of the ceramic balls, contributing to smooth operation and stability at the limiting speed of 36,000 rpm.
- Universal Matchable Design (SU): This bearing is universally matchable, allowing any number of bearings to be mounted together in various configurations (back-to-back, face-to-face, or tandem) without the need for selective assembly. This simplifies inventory and enables precise control over system rigidity and preload.
- High Precision & Rigidity: Manufactured to PA9A tolerance class and featuring an 18° contact angle with a light preload, this bearing delivers exceptional running accuracy, minimal deflection, and high system stiffness, which is critical for precision applications.
71913 FE/HCPA9ALTGA Bearing Typical Application Areas
The 71913 FE/HCPA9ALTGA is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Motors and Drives
- Aerospace Actuation Systems
- Semiconductor Manufacturing Equipment
