S71919 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71919 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.6 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
11115 lbf
Radial static load rating
12375 lbf
Limiting speed
9.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1423.61
/ each
In Stock
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S71919 CD/P4A Bearing Product Overview & Core Advantages
The S71919 CD/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, this bearing excels in high-speed scenarios while simultaneously supporting substantial combined loads (radial and axial). Its compact design, featuring a 95 mm bore and 18 mm width, makes it ideal for space-constrained, high-performance assemblies. The combination of a phenolic cage and preloaded configuration ensures smooth operation, low vibration, and superior running accuracy.
S71919 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CD | Specific internal design with a 15° contact angle and optimized internal geometry. | Provides high rigidity and excellent axial load capacity. |
| P4A | Indicates a high-precision bearing conforming to ISO P4 (ABEC-7) tolerance class. | Ensures minimal runout and vibration for superior performance in precision machinery. |
S71919 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized internal geometry with a 15° contact angle and phenolic resin cage provides high rigidity, enabling the bearing to handle significant combined loads effectively.
- High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 9,500 rpm. The precision-ground components minimize friction and heat generation.
- Precision & Accuracy: Manufactured to P4 tolerance class, this bearing guarantees tight dimensional control and running accuracy, which is critical for applications like machine tool spindles.
- Preloaded & Sealed: The bearing is supplied with a preload and is sealed and lubricated for life, ensuring consistent performance and reducing maintenance requirements.
S71919 CD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes
- High-Frequency Motors
- Medical Equipment (CT scanners, dental drills)
- Aerospace Actuation Systems
