S71916 ACE/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71916 ACE/P4A Bearing Product Overview & Core Advantages
The S71916 ACE/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. This single-row bearing features a 25° contact angle and is supplied with a preload, making it ideal for handling combined radial and axial loads simultaneously. Manufactured to P4 (ABEC-7) tolerance class, it ensures high running accuracy and system rigidity, perfectly suited for high-speed operation and precision machinery.
S71916 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series
- 19: Indicates specific internal design and contact angle
- 16: Bore diameter code (80 mm)
- ACE: Specific internal design with optimized internal geometry
- P4A: P4 tolerance class with specific accuracy requirements
S71916 ACE/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured from chrome steel with phenolic resin cage, this bearing maintains dimensional stability under high-speed operation. The 25° contact angle provides optimal load distribution for both radial and axial forces.
Enhanced Load Capacity: With a dynamic load rating of 4860 lbf and static load rating of 3825 lbf, this bearing delivers reliable performance under demanding operating conditions. The preload configuration ensures minimal deflection and improved system stiffness.
Superior High-Speed Performance: The lightweight phenolic cage and precision-ground components enable operation at limiting speeds up to 14,500 rpm. The optimized internal geometry reduces friction and heat generation during high-speed rotation.
Precision Engineering: Featuring tight dimensional tolerances (bore: -0.007mm to 0, OD: -0.008mm to 0) and P4 accuracy class, this bearing ensures precise shaft positioning and minimal runout in critical applications.
S71916 ACE/P4A Bearing Typical Application Areas
The S71916 ACE/P4A is extensively used in precision applications requiring high speed and accuracy:
- Machine tool spindles and high-precision machining centers
- High-frequency motor spindles and precision grinding applications
- Medical equipment and dental handpieces
- Aerospace components and navigation systems
- Robotics and precision automation equipment
- Test and measurement instruments requiring minimal vibration
