S71917 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71917 ACE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.44 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.008mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6322 lbf
Radial static load rating
4860 lbf
Limiting speed
16.5 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:
$ 1190.54
/ each
In Stock
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S71917 ACE/HCP4A Bearing Product Overview & Core Advantages
The S71917 ACE/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Operating under the P4 (ABEC-7) tolerance class, it is designed to handle significant combined loads—simultaneously supporting radial loads and thrust loads in one direction. Its compact design, featuring a ceramic ball and phenolic cage, makes it ideal for high-speed, high-rigidity applications where reliability is critical.
S71917 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| ACE | 25° Contact Angle, High Precision | Optimized for high axial load capacity and rigidity |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Reduced friction, higher speed capability, and longer service life |
| P4A | ABEC-7 Precision Class with Specific Internal Clearance/Geometry | Exceptional running accuracy and low vibration for demanding applications |
S71917 ACE/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust construction enable the bearing to support high combined loads effectively, providing stable performance under demanding conditions.
- Superior High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density ceramic balls significantly reduces centrifugal forces, allowing for a high limiting speed of 16,500 rpm.
- Enhanced Durability & Temperature Resistance: Hybrid ceramic construction offers excellent wear resistance and can operate within a wide temperature range of -30°C to 110°C.
- Pre-Lubricated & Sealed: Comes lubricated and sealed from the factory, protecting against contamination and ensuring consistent performance, reducing maintenance needs.
S71917 ACE/HCP4A Bearing Typical Application Areas
The S71917 ACE/HCP4A is ideally suited for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles
- High-Speed Robotic Drives
- Precision Grinding Spindles
- Aerospace Actuators and Control Systems
- Medical and Dental Equipment Drives
