71916 CDGB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71916 CDGB/P4A Bearing Product Overview & Core Advantages
The 71916 CDGB/P4A is a single-row angular contact ball bearing designed for applications requiring high precision and exceptional performance. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 15° contact angle provides optimal capability for handling combined loads (radial and axial) in one direction. With light preload (Class B) and universal matching capability (SU designation), it enables simplified installation and precise axial positioning in high-speed spindle arrangements. The phenolic cage ensures smooth operation at limiting speeds up to 28,000 rpm, making it ideal for demanding industrial applications.
71916 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Impact |
|---|---|---|
| 71916 | Standard bearing series designation | Defines basic dimensions: 80mm bore × 110mm OD × 16mm width |
| C | 15° contact angle | Optimized for combined radial and axial load capacity |
| D | High load capacity internal design | Enhanced dynamic and static load ratings |
| GB | Light preload (Class B) | Reduces deflection, improves rigidity and positioning accuracy |
| P4A | High precision tolerance class | Superior dimensional accuracy and running precision for critical applications |
71916 CDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and minimal runout.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio and smooth operation at limiting speeds of 28,000 rpm, reducing centrifugal forces and maintaining stability.
Superior Load Capacity: With dynamic load rating of 8,190 lbf and static load rating of 8,775 lbf, this bearing handles significant combined loads while maintaining precision.
Universal Matching Design: Designated as Universal Matchable (SU), these bearings can be supplied in matched sets of 3 for simplified mounting and optimal preload configuration in multi-bearing arrangements.
Material Excellence: Constructed from chrome steel for both rings and balls (9.525mm diameter, 27 balls), providing excellent wear resistance and fatigue life in demanding operating conditions.
71916 CDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications requiring exceptional accuracy and speed
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus demanding minimal vibration and runout
- High-Speed Motors: Electric spindle motors, high-frequency motors, and servo drives operating at elevated rotational speeds
- Aerospace Components: Guidance systems, actuator mechanisms, and auxiliary power units requiring reliable performance in critical environments
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems where precision and reliability are paramount
