71916 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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71916 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 71916 ACDGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Designed as a single bearing with a 25° contact angle and Extra Light (Class A) preload, it delivers superior rotational accuracy and rigidity. Its ceramic ball construction enables outstanding high-speed capabilities and reduced heat generation, while the phenolic cage ensures smooth operation at extreme rotational velocities. This bearing is universally matchable (SU), allowing for precise arrangement in sets to handle complex combined loads.
71916 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 16mm width) |
| AC | Angular Contact design with 25° contact angle |
| DGA | Duplex arrangement, ground preload, and specific internal design |
| HCP4A | Hybrid Ceramic balls with P4A super precision tolerance class |
71916 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls provides superior high-speed performance, reduced friction, and extended service life. Ceramic balls are electrically insulating and maintain dimensional stability across the operating temperature range of -30°C to 110°C.
Precision Ground Preload: The Extra Light (Class A) preload ensures minimal axial and radial play, delivering exceptional rotational accuracy and system rigidity for precision applications.
Optimized Cage Design: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at the limiting speed of 17,000 rpm, contributing to reduced vibration and noise.
Super Precision Tolerance: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring consistent high-precision performance in demanding applications.
71916 ACDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Medical Equipment - Dental handpieces and surgical drill systems
- Aerospace Systems - Gyroscopes, navigation instruments, and auxiliary power units
- Semiconductor Manufacturing - Wafer handling robots and precision positioning stages
- High-Speed Motors - CNC spindle motors and high-frequency electric motors
