71916 CD/P4ATFTB
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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71916 CD/P4ATFTB Bearing Product Overview & Core Advantages
The 71916 CD/P4ATFTB is a precision angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. This matched triplex set arranged in a Face-to-Face (TFT) configuration delivers superior system stability and load-sharing capabilities. Engineered with a P4A tolerance class and a light preload (Class B), it is optimized for high-speed operation up to 28,000 rpm while maintaining precise shaft positioning under combined radial and axial loads.
71916 CD/P4ATFTB Bearing Model Code Explained, Specifications & Naming Convention
- 71916: Basic bearing designation indicating size series and 80mm bore diameter
- C: 15° contact angle optimized for combined loads
- D: High-precision manufacturing standards
- P4A: Ultra-precision tolerance class exceeding ABEC 7 standards
- TFT: Triplex Face-to-Face arrangement of three matched bearings
- B: Light preload classification for minimal friction and optimal stiffness
71916 CD/P4ATFTB Bearing Structural Features & Performance Benefits
Triplex Matched Design: The three-bearing Face-to-Face arrangement provides exceptional system rigidity and moment load capacity, distributing loads evenly across all bearing elements for enhanced service life.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring minimal runout and vibration for high-precision applications.
High-Speed Capability: The phenolic resin cage and optimized internal geometry enable reliable operation at limiting speeds of 28,000 rpm, making it suitable for demanding spindle applications.
Superior Load Capacity: With a dynamic radial load rating of 17,550 lbf and static radial load rating of 26,100 lbf, this bearing handles significant combined radial and axial loads efficiently.
Thermal Stability: The phenolic cage material and chrome steel construction maintain dimensional stability across the operating temperature range of -30°C to 110°C.
71916 CD/P4ATFTB Bearing Typical Application Areas
This precision bearing set is specifically engineered for applications requiring the highest levels of accuracy and rigidity:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Rotary Tables: Indexing and positioning systems
- Aerospace Components: Gyroscopes, navigation systems, and flight control mechanisms
- Medical Equipment: High-speed dental handpieces, surgical robotics, and imaging systems
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
- Test and Measurement Equipment: Coordinate measuring machines and optical inspection systems
