71916 ACD/P4ATBTG180
71900 Series Super Precision Angular Contact Ball Bearings
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71916 ACD/P4ATBTG180 Bearing Product Overview & Core Advantages
The 71916 ACD/P4ATBTG180 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set bearing is supplied as a Triplex Back-to-Back (TBT) arrangement, providing superior stiffness and the ability to handle significant combined loads (radial and axial). With its P4A tolerance class and phenolic cage, it is engineered for high-speed operation and is pre-lubricated for immediate use, making it ideal for high-reliability, precision machinery.
71916 ACD/P4ATBTG180 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 48mm width). |
| ACD | Contact angle of 25°, optimized for carrying high axial loads. |
| P4A | Indicates a high-precision tolerance class for superior running accuracy. |
| TBT | Specifies a Triplex Back-to-Back matched set of three bearings, offering maximum rigidity. |
| G | Indicates a specific preload level within the matched set. |
| 180 | Likely a manufacturer-specific code related to the matching process or special features. |
71916 ACD/P4ATBTG180 Bearing Structural Features & Performance Benefits
Exceptional Rigidity: The Triplex Back-to-Back (TBT) arrangement of three bearings creates an extremely rigid bearing system, capable of resisting complex moment loads and minimizing shaft deflection under heavy combined loads.
High Load Capacity: With a 25° contact angle and robust construction using chrome steel rings and balls, this bearing set is engineered to handle high radial and axial loads simultaneously, as evidenced by its high dynamic and static load ratings.
Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the precision P4A grading ensures smooth operation, contributing to a high limiting speed of 17,000 rpm.
Pre-Configured & Ready-to-Use: Supplied as a pre-lubricated and pre-loaded matched set, this bearing arrangement ensures optimal performance from installation, saving time and guaranteeing the intended bearing stiffness and running accuracy.
71916 ACD/P4ATBTG180 Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is ideally suited for applications where extreme accuracy and stability are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in high-torque, high-speed industrial drives.
- Industrial Pumps and Compressors: Where reliable performance under heavy loads is critical.
- Robotic Arm Joints and Precision Rotary Axes: Requiring minimal deflection and high positional accuracy.
