71916 ACDGA/P4AL
71900 Series Super Precision Angular Contact Ball Bearings
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71916 ACDGA/P4AL Bearing Product Overview & Core Advantages
The 71916 ACDGA/P4AL is a single-row angular contact ball bearing engineered for ultra-precision applications requiring exceptional running accuracy and high-speed capability. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and rotational precision. Its 25° contact angle is optimized to support significant combined loads (radial and axial), while the Extra Light (Class A) preload ensures minimal deflection and vibration for demanding spindle applications. The bearing comes pre-lubricated and is Universal Matchable (SU), allowing for precise axial positioning and simplified mounting in multi-bearing arrangements.
71916 ACDGA/P4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series, indicating a high-precision, light-weight angular contact design. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Optimized internal geometry for high-speed operation. |
| GA | Indicates Universal Matchable (SU) bearings supplied in a set of 3 with controlled preload. |
| P4A | High precision tolerance class (superior to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
| L | Light preload designation (corresponds to Extra Light / Class A). |
71916 ACDGA/P4AL Bearing Structural Features & Performance Benefits
High-Speed & Precision Design: The combination of a phenolic cage, optimized internal geometry (suffix D), and P4A precision enables a high limiting speed of 17,000 rpm while maintaining exceptional rotational accuracy and low heat generation.
Superior Rigidity & Load Capacity: The 25° contact angle and Extra Light preload provide high system rigidity, effectively resisting operational deflection under combined radial and axial loads. This makes it ideal for applications where shaft positioning accuracy is critical.
Universal Matching & Simplified Assembly: As a Universal Matchable (SU) bearing supplied in a set of 3, these bearings can be arranged in tandem or back-to-back configurations without the need for selective mounting, simplifying installation and ensuring consistent, pre-defined preload.
Material & Lubrication: Constructed from high-grade chrome steel for rings and balls, ensuring durability and long service life. The bearing is pre-lubricated for immediate operation upon installation.
71916 ACDGA/P4AL Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and laboratory equipment.
- High-Frequency Motors: Spindles for PCB drilling and small motor applications.
- Robotics: High-precision joints and arm assemblies.
