S71914 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71914 CE/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.65 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
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8055 lbf
Radial static load rating
7200 lbf
Limiting speed
28 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
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S71914 CE/P4ADBA Bearing Product Overview & Core Advantages
The S71914 CE/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement is preloaded to Extra Light (Class A) standards, providing outstanding operational stability and minimizing axial and radial runout. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high precision, making it an ideal solution for high-speed spindles and other critical machinery components where high rigidity and minimal deflection are paramount.
S71914 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number S71914 CE/P4ADBA is decoded as follows:
- S: Denotes a bearing from a high-precision series.
- 7: Indicates an angular contact ball bearing.
- 19: Specifies the bore diameter code (70 mm).
- 14: Specifies the outside diameter and width series.
- CE: Signifies a specific internal design and 15° contact angle.
- P4A: Defines the tolerance class, indicating very high dimensional and running accuracy exceeding ABEC 7/ISO P4 standards.
- DB: Specifies the Duplex Back-to-Back matched arrangement.
- A: Indicates the preload level (Extra Light / Class A).
S71914 CE/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise shaft positioning under combined loads.
- Superior Precision: Manufactured to a P4A tolerance class, this bearing guarantees extremely tight dimensional control and minimal running vibration, which is critical for high-precision applications.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the 15° contact angle and preload contribute to stable operation at high rotational speeds, with a limiting speed of 28,000 rpm.
- Sealed & Pre-Lubricated: As a sealed bearing type, it is filled with high-quality grease, offering protection against contamination and providing long-term, maintenance-free operation within its specified temperature range.
S71914 CE/P4ADBA Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving machines, and other high-precision automated equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Medical Equipment: Centrifuges and other devices requiring smooth, precise, and quiet operation.
