S71914 CD/P4ADFB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71914 CD/P4ADFB
Basic Information
System of measurement
Metric
Weight
0.67 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
12578 lbf
Radial static load rating
15300 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Face-to-Face (DF)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S71914 CD/P4ADFB Bearing Product Overview & Core Advantages
The S71914 CD/P4ADFB is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex face-to-face (DF) matched set consists of two bearings preloaded to Light / Class B, delivering superior system stability and handling combined loads (radial and axial) from both directions. Manufactured to P4A tolerance class, it offers extremely tight dimensional control for high-precision machinery. The phenolic cage and grease lubrication contribute to its suitability for high-speed operation up to 28,000 rpm.
S71914 CD/P4ADFB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71914 | Basic bearing designation (70mm bore, 100mm OD, 32mm width). |
| C | 15° contact angle. |
| D | Duplex face-to-face (DF) mounting arrangement. |
| P4A | High precision tolerance class (equivalent to ABEC 7). |
| DFB | Specific preload designation for the matched set (Light / Class B). |
S71914 CD/P4ADFB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex face-to-face (DF) arrangement creates a rigid bearing system that effectively resists moment loads and handles significant combined radial and axial loads from both directions, ensuring precise shaft positioning.
- Optimized High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, while the standard grease lubrication and 15° contact angle enable stable operation at the high limiting speed of 28,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with extremely tight bore, outside diameter, and width tolerances, this bearing guarantees minimal runout and vibration for superior rotational accuracy.
- Robust Construction: Components made from chrome steel provide high load ratings (Dynamic: 12,578 lbf, Static: 15,300 lbf) and excellent durability under demanding conditions.
S71914 CD/P4ADFB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Robotics and Automation
- Medical and Dental Equipment Spindles
