S71922 FE/P4ATBTA
Sealed Super Precision Angular Contact Ball Bearings
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S71922 FE/P4ATBTA Bearing Product Overview & Core Advantages
The S71922 FE/P4ATBTA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. As part of a triplex back-to-back (TBT) matched set, this bearing is engineered to provide superior stiffness and stability under combined loads (radial and axial). Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other precision machinery where reliability and performance are critical.
Model Code In-Depth Explanation
| S71922 | Basic bearing series, indicating a 110 mm bore, 150 mm OD, and 60 mm width. |
| FE | Sealed on both sides, providing effective protection against contaminants. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy requirements. |
| TB | Denotes a back-to-back (DB) arrangement within the matched set. |
| TA | Specifies an extra light preload (Class A) for optimal rigidity and minimal deflection. |
S71922 FE/P4ATBTA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back matched set configuration creates a highly rigid bearing system capable of withstanding significant combined radial and axial loads. The 18° contact angle is optimized for handling thrust loads.
Precision & High-Speed Performance: Manufactured to P4A tolerance class with a phenolic cage, this bearing ensures smooth operation and is suitable for high-speed applications up to 10,000 rpm. The precise bearing dimensions and tolerances contribute to exceptional running accuracy.
Durability & Maintenance: The sealed design (FE) and pre-lubrication with grease protect the bearing from contamination and provide long service life, reducing maintenance needs. The chrome steel construction ensures high durability and wear resistance.
S71922 FE/P4ATBTA Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Robotic Arms and Precision Gearboxes
- Medical and Dental Equipment
