71816 ACDGC/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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71816 ACDGC/P4 Bearing Product Overview & Core Advantages
The 71816 ACDGC/P4 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered to accommodate combined loads (simultaneous radial and axial loads), this bearing features a 25° contact angle that provides superior axial load capacity compared to standard deep groove bearings. Manufactured to P4 tolerance class, it guarantees extremely tight dimensional and running accuracy. Its moderate preload (Class C) ensures high system stiffness and precise shaft positioning, making it ideal for high-speed, high-rigidity spindles and precision machinery.
71816 ACDGC/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71816 | Basic bearing series and size designation (80mm bore, 100mm OD, 10mm width) |
| AC | Angular Contact design with a 25° contact angle |
| D | High contact angle for increased axial load capacity |
| GC | Specific internal clearance and preload grouping (Moderate preload, Class C) |
| /P4 | High precision tolerance class for exceptional running accuracy |
71816 ACDGC/P4 Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The phenolic resin cage provides excellent dimensional stability and low friction, contributing to smooth operation at high speeds (limiting speed of 28,000 rpm). The P4 tolerance class ensures minimal runout and vibration, critical for precision applications.
Superior Load Capacity: The 25° contact angle and optimized internal geometry enable the bearing to handle significant combined radial and axial loads. With a dynamic load rating of 3105 lbf and static load rating of 3825 lbf, it offers reliable performance under demanding conditions.
Universal Matching Capability: Designated as Universal Matchable (SU), these bearings can be universally paired in any combination to create preloaded sets, simplifying installation and ensuring optimal performance in multi-bearing arrangements.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, the bearing provides high fatigue life and wear resistance. The open design allows for customized lubrication schemes to match specific operational requirements.
71816 ACDGC/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines
- Precision Instrumentation: Measuring equipment, optical scanners, and coordinate measuring machines
- High-Speed Motors: Servo motors, spindle motors, and high-frequency electric motors
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- Medical Equipment: Dental handpieces, laboratory centrifuges, and imaging devices
