71916 ACE/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71916 ACE/P4A
Basic Information
System of measurement
Metric
Weight
0.36 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.008mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4860 lbf
Radial static load rating
3825 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 880.39
/ each
In Stock
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71916 ACE/P4A Bearing Product Overview & Core Advantages
The 71916 ACE/P4A is a single-row angular contact ball bearing designed for applications requiring exceptional precision and high-speed performance. Manufactured to P4 (ABEC-7) tolerance class, this bearing delivers superior running accuracy. Its key advantage lies in its ability to accommodate combined radial and axial loads simultaneously, making it an ideal choice for high-rigidity, high-speed spindles and precision machinery where reliability and accuracy are paramount.
71916 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 16mm width). |
| ACE | Internal design code signifying a 25° contact angle and optimized internal geometry for high-speed operation. |
| P4A | Indicates the bearing is manufactured to P4 (ABEC-7) tolerance class with specific dimensional and running accuracy requirements. |
71916 ACE/P4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The phenolic resin cage and 25° contact angle are engineered for stable operation at high rotational speeds, with a limiting speed of 22,000 rpm. The open design facilitates efficient lubrication and heat dissipation.
- Precision & Rigidity: Built to P4 super-precision standards, this bearing ensures minimal runout and vibration, contributing to superior system rigidity and positioning accuracy in demanding applications.
- High Load Capacity: The optimized internal geometry, including a 9.525 mm ball diameter and 24 balls, provides excellent dynamic and static load ratings (4860 lbf / 3825 lbf) for its compact cross-section.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance and increases system stiffness, critical for high-precision machining and instrumentation.
71916 ACE/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices, optical scanners, and coordinate measuring machines (CMM).
- High-Frequency Motors and Spindles: Applications requiring minimal vibration and high rotational accuracy.
- Robotics: High-precision joints and arm assemblies.
