S71906 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71906 CE/HCP4ADBA
Basic Information
System of measurement
Metric
Weight
0.086 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
1440 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S71906 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The S71906 CE/HCP4ADBA is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. This duplex back-to-back (DB) matched set delivers exceptional rotational accuracy and stability, capable of withstanding combined radial and axial loads. Featuring a 15° contact angle and ceramic balls, it is engineered for superior performance in precision machinery where minimal thermal expansion and maximum operational reliability are critical.
S71906 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CE | Hybrid Bearing (Ceramic Balls, Steel Rings) | Reduced friction, higher speed capability, and longer service life. |
| HC | Hybrid Ceramic | Enhanced performance with ceramic rolling elements. |
| P4A | Super Precision Tolerance (ABEC 7 / P4) | Guarantees ultra-high running accuracy and system stability. |
| DB | Duplex Back-to-Back Arrangement | Provides high rigidity and can accommodate moment loads. |
S71906 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement of two bearings creates a rigid support system that effectively resists moment loads and handles significant combined loads.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage allows for an exceptionally high limiting speed of 100,500 rpm.
- Exceptional Precision: Manufactured to P4A super-precision tolerance with an extra light preload (Class A), this bearing ensures minimal runout and vibration for ultra-precise applications.
- Optimized for Longevity: The sealed design retains the factory-applied grease lubrication, protecting against contamination and providing maintenance-free operation within the specified temperature range of -30°C to 110°C.
S71906 CE/HCP4ADBA Bearing Typical Application Areas
This bearing is ideally suited for high-performance equipment requiring maximum precision and speed, including:
- High-Frequency CNC Spindles
- Precision Grinding Machine Spindles
- High-Speed Machining Centers
- Advanced Robotics and Automation
- Medical and Dental Equipment Spindles
- Aerospace Test and Measurement Equipment
