71916 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71916 ACE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.31 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
27 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 880.66
/ each
In Stock
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71916 ACE/HCP4A Bearing Product Overview & Core Advantages
The 71916 ACE/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. This metric-series bearing features a 25° contact angle and is supplied with a preload, delivering superior axial rigidity and precise shaft positioning. Manufactured to P4 (ABEC-7) tolerance class, it guarantees minimal runout and consistent performance. The combination of a ceramic ball and phenolic cage enables outstanding high-speed performance, with a limiting speed of 27,000 rpm, making it ideal for demanding spindle and machine tool applications.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 16mm width) |
| ACE | Specific internal design with a 25° contact angle and optimized internal geometry |
| HC | Hybrid Ceramic: Features ceramic balls (typically silicon nitride) for reduced density, lower centrifugal forces, and higher speed capability |
| P4 | Dimensional and running accuracy per ISO P4 tolerance class (equivalent to ABEC-7) |
71916 ACE/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The hybrid ceramic design with silicon nitride balls significantly reduces centrifugal forces and friction, while the lightweight phenolic resin cage ensures stability and low inertia at ultra-high speeds up to 27,000 rpm.
- High Rigidity & Precision: The 25° contact angle and factory-applied preload provide excellent axial stiffness, minimizing deflection under load and ensuring precise rotational accuracy for critical spindle applications.
- Superior Load Capacity: Engineered to support combined loads (simultaneous radial and axial forces), with a dynamic load rating of 4860 lbf and a static load rating of 3825 lbf.
- Thermal Stability: The phenolic cage and ceramic balls offer superior performance across the specified temperature range (-30°C to 110°C) with reduced thermal expansion compared to all-steel designs.
- Pre-Lubricated: Comes lubricated from the factory for immediate operation, suitable for the specified speed and temperature range.
71916 ACE/HCP4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance machinery requiring high rotational speeds and rigidity, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- High-Speed Automation: Robotics, direct-drive motors, and precision positioning systems.
