S71916 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71916 ACB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.37 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
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
6.747 mm
Ball quantity
34
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3330 lbf
Radial static load rating
3150 lbf
Limiting speed
17 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:
$ 1057.37
/ each
In Stock
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S71916 ACB/HCP4A Bearing Product Overview & Core Advantages
The S71916 ACB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its ceramic balls and P4 (ABEC-7) tolerance class, ensuring ultra-low runout and smooth operation. Its core advantages include the ability to handle high combined loads due to its 25° contact angle, superior high-speed capability facilitated by a phenolic cage, and reliable operation across a wide temperature range. Preloaded and pre-lubricated, it is a ready-to-install solution for high-rigidity and high-reliability systems.
S71916 ACB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S71916 | Denotes the bearing series and size. 'S' often indicates a high-precision series. The basic dimensions are 80mm bore, 110mm outside diameter, and 16mm width. |
| ACB | Angular Contact Bearing with a 25° contact angle, optimized for carrying significant axial loads in one direction along with radial loads. |
| HCP4A | A composite suffix. HC indicates hybrid ceramic construction (steel rings with ceramic balls). P4 specifies the P4 (ABEC-7) tolerance class for ultra-precision. A signifies that the bearing is supplied with a specific preload. |
S71916 ACB/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and ceramic (silicon nitride) balls significantly reduces friction, lowers operating temperature, and extends service life. This design is electrically insulating and provides superior performance in high-speed applications.
- High-Speed Phenolic Cage: The lightweight and robust phenolic resin cage ensures exceptional stability and guidance of the ceramic balls at the very high limiting speed of 17,000 rpm.
- Precision & Rigidity: Manufactured to P4 tolerance class and supplied with a preload, this bearing delivers high running accuracy, minimal deflection, and excellent system stiffness.
- Combined Load Capacity: The 25° contact angle is optimally designed to support substantial axial loads in addition to radial loads, making it ideal for applications with complex loading conditions.
- Ready-to-Install & Sealed: The bearing comes pre-lubricated and sealed, protecting it from contamination during handling and ensuring immediate, maintenance-free operation upon installation.
S71916 ACB/HCP4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery where speed, accuracy, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In robot arm joints and spindle drives requiring high rigidity and positional accuracy.
- High-Frequency Motors & Spindles: Used in PCB drilling spindles and dental handpieces.
- Aerospace & Defense Systems: In gyroscopes, navigation systems, and other critical instrumentation.
- Medical Equipment: Within CT scanners and other high-speed imaging devices.
