S71906 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71906 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.044 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.006mm to 0
Width
9 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
20
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1609 lbf
Radial static load rating
1024 lbf
Limiting speed
40 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:
$ 283.76
/ each
In Stock
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S71906 CD/HCP4A Bearing Product Overview & Core Advantages
The S71906 CD/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with a 15° contact angle, it is optimized to handle combined loads, accommodating significant axial loads in one direction alongside radial loads. Its P4 (ABEC-7) tolerance class ensures ultra-precise running, making it ideal for high-speed spindles and other high-reliability applications. The combination of a phenolic cage and ceramic balls contributes to its superior high-speed performance and extended service life.
S71906 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact ball bearings. |
| 1906 | Bore diameter code (06 = 30 mm). |
| C | Designates a 15° contact angle. |
| D | Indicates a high rigid design. |
| HC | Refers to the hybrid ceramic construction (steel rings with ceramic balls). |
| P4A | Specifies the P4 (ABEC-7) tolerance class and a specific internal clearance/geometry group. |
S71906 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 15° contact angle and P4 tolerance provides superior dimensional stability and running accuracy, essential for high-precision machining and instrumentation.
- Enhanced Speed and Durability: The phenolic resin cage offers low friction and excellent acceleration characteristics, while the ceramic balls (Hybrid construction) reduce centrifugal force, lower operating temperature, and significantly increase the limiting speed (40,000 rpm). This combination is key for high-speed bearing applications.
- Superior Load Capacity: Engineered to handle both radial and axial loads simultaneously. With a dynamic load rating of 1609 lbf and a static load rating of 1024 lbf, it offers reliable performance under demanding conditions.
- Pre-lubricated and Sealed: The bearing comes lubricated and sealed, protecting against contamination and ensuring consistent performance with minimal maintenance across its operating temperature range of -30° to 110 °C.
S71906 CD/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation and measuring equipment
- High-Frequency Motors and spindles
- Dental and Medical Handpieces
- Aerospace auxiliary systems and instrumentation
