71816 CDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71816 CDGA/P4 Bearing Product Overview & Core Advantages
The 71816 CDGA/P4 is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior runout and dimensional control. Its 15° contact angle is optimized to handle significant combined loads—simultaneously supporting radial and axial forces. The extra light preload (Class A) minimizes deflection under operational stresses, making it ideal for machine tool spindles and other high-speed, high-rigidity systems. The bearing is universally matchable (SU), allowing for precise preload control when mounted in sets.
Model Code Breakdown
- 71816: Basic designation indicating a metric, single row angular contact ball bearing with 80mm bore, 100mm OD, and 10mm width
- C: 15° contact angle design
- D: High precision manufacturing tolerances
- G: Universal matching bearing (can be mounted in any combination)
- A: Extra light preload classification
- /P4: Precision tolerance class exceeding ABEC 7 standards
71816 CDGA/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring minimal runout and vibration for ultra-precise applications.
Optimized Load Capacity: The 15° contact angle and 35 chrome steel balls provide excellent combined load capacity with a radial dynamic rating of 3285 lbf and static rating of 4118 lbf.
High-Speed Performance: The phenolic resin cage and optimized internal geometry enable a limiting speed of 28,000 rpm, making it suitable for high-speed spindle applications.
Thermal Stability: The phenolic cage material maintains dimensional stability across the operating temperature range of -30°C to 110°C.
Precision Matching: As a universally matchable bearing, it can be mounted in sets of three with predictable preload characteristics for complex bearing arrangements.
71816 CDGA/P4 Bearing Typical Application Areas
The 71816 CDGA/P4 is engineered for demanding precision applications including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Gearboxes: Industrial transmission systems requiring minimal backlash
- Robotics: High-accuracy robotic arms and positioning systems
- Medical Equipment: Surgical handpieces and diagnostic imaging devices
- Aerospace Components: Guidance systems and flight control mechanisms
- High-Speed Motors: Precision electric motors and servo drives
