71916 CD/P4ATBTB
71900 Series Super Precision Angular Contact Ball Bearings
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71916 CD/P4ATBTB Bearing Product Overview & Core Advantages
The 71916 CD/P4ATBTB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This triplex back-to-back (TBT) matched set delivers superior performance in handling combined loads (radial and axial) while maintaining high running accuracy. Manufactured to P4A tolerance class, it offers extremely tight dimensional control for applications where precision is paramount. The pre-lubricated design and phenolic cage contribute to its readiness for high-speed operation and reliable performance.
71916 CD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
- 71916: Basic bearing designation (80mm bore, 110mm OD, 48mm width)
- CD: Contact angle of 15° and high-precision design
- P4A: Super-precision tolerance class (exceeding ABEC 7/ISO P4)
- TBT: Triplex Back-to-Back arrangement of three matched bearings
- B: Light preload for optimal rigidity and minimal deflection
71916 CD/P4ATBTB Bearing Structural Features & Performance Benefits
Exceptional Rigidity and Load Capacity: The triplex back-to-back configuration creates a highly rigid bearing system capable of withstanding substantial combined radial and axial loads from both directions. This arrangement significantly enhances moment load capacity and system stability.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio, reducing centrifugal forces and enabling high-speed operation up to 28,000 rpm. The optimized internal geometry minimizes friction and heat generation.
Precision Performance: Manufactured to P4A super-precision standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring minimal runout and vibration for applications requiring extreme accuracy.
Optimized Design: Features 27 precision balls of 9.525mm diameter with a 15° contact angle, balancing load capacity and speed characteristics for demanding applications.
71916 CD/P4ATBTB Bearing Typical Application Areas
This high-precision triplex bearing set is ideally suited for:
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Gearboxes - Industrial transmissions requiring minimal deflection
- Robotic Systems - High-accuracy robotic arms and positioning systems
- Aerospace Components - Flight control systems and auxiliary power units
- Medical Equipment - High-speed dental handpieces and surgical tools
- Test and Measurement Equipment - Coordinate measuring machines and optical instruments
