S71917 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71917 CE/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
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6660 lbf
Radial static load rating
5130 lbf
Limiting speed
18 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:
$ 1190.56
/ each
In Stock
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S71917 CE/HCP4A Bearing Product Overview & Core Advantages
The S71917 CE/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Positioned in the P4 (ABEC-7) tolerance class, it guarantees exceptional running accuracy. A key feature is its 15° contact angle, optimized to handle significant axial loads in one direction while supporting radial loads. The use of ceramic balls and a phenolic cage contributes to its high-speed capability, low friction, and extended service life, making it ideal for high-speed spindles and other precision machinery.
S71917 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71917 | Denotes the bearing series and size. A single-row, angular contact bearing with a 85 mm bore, 120 mm OD, and 18 mm width. |
| C | Indicates a 15° contact angle, which is optimized for high axial load capacity. |
| E | Signifies an optimized internal design, often including a larger ball complement and reinforced raceways for increased load rating. |
| HC | Refers to the Hybrid Ceramic construction, featuring steel rings and ceramic (silicon nitride) balls. |
| P4A | Specifies the P4 tolerance class (equivalent to ABEC-7), ensuring very high dimensional and running accuracy. |
S71917 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This construction allows for higher limiting speeds, reduced lubrication requirements, and longer service life, especially in demanding conditions.
- High-Speed Phenolic Cage: The phenolic resin cage is lightweight and robust, offering excellent dimensional stability and low friction at high rotational speeds, contributing to the bearing's limiting speed of 18,000 rpm.
- Precision & Rigidity: Manufactured to P4 tolerance with a 15° contact angle, this bearing provides high running accuracy and rigidity, making it suitable for applications requiring precise shaft positioning and minimal deflection.
- High Load Capacity: With a dynamic load rating of 6660 lbf and a static load rating of 5130 lbf, it is capable of handling significant combined (radial and axial) loads.
- Pre-lubricated & Sealed: The bearing comes lubricated and sealed, protecting against contamination and providing maintenance-free operation within its specified temperature range of -30°C to 110°C.
S71917 CE/HCP4A Bearing Typical Application Areas
The S71917 CE/HCP4A is ideally suited for high-performance machinery where speed, precision, and reliability are critical. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instruments: Measuring and testing equipment.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units.
- Medical Equipment: Dental handpieces and small high-speed surgical tools.
