71916 CD/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 71916 CD/P4A is a single-row angular contact ball bearing designed for applications requiring exceptional precision and performance. Engineered to withstand combined loads (radial and axial) in one direction, this bearing features a 15° contact angle optimized for high-speed operation. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, making it ideal for high-precision machinery. Preloaded and lubricated from the factory, it offers immediate, reliable performance in demanding environments.
71916 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 16mm width) |
| CD | Specific internal design and contact angle (15°) |
| P4A | High precision tolerance class equivalent to ABEC-7 |
Structural Features and Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with tight dimensional controls (bore tolerance: -0.007mm to 0) ensuring minimal runout and vibration for precision applications.
Optimized Load Capacity: The 15° contact angle and 27 chrome steel balls provide excellent capacity for combined radial and axial loads, with dynamic load rating of 8190 lbf and static load rating of 8775 lbf.
High-Speed Performance: The phenolic resin cage enables stable operation at limiting speeds up to 18,000 rpm, while the optimized internal geometry reduces friction and heat generation.
Preloaded Design: Factory preloading eliminates internal clearance, providing high rigidity and precise rotational accuracy without additional adjustment during installation.
71916 CD/P4A Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed spindles for grinding and milling applications
- Precision instruments and measuring equipment
- Medical equipment requiring high rotational accuracy
- Aerospace components and navigation systems
- Robotic joints and automation systems
