S71919 ACB/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71919 ACB/P4A
Basic Information
System of measurement
Metric
Weight
0.64 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
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
38
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3870 lbf
Radial static load rating
3960 lbf
Limiting speed
12 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:
$ 1423.91
/ each
In Stock
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S71919 ACB/P4A Bearing Product Overview & Core Advantages
The S71919 ACB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a single-row bearing with a 25° contact angle and available preload, it excels at handling combined radial and axial loads simultaneously. Manufactured to the stringent P4 (ABEC-7) tolerance class, it ensures minimal runout and vibration, making it ideal for high-speed and high-rigidity applications. Its compact design, sealed construction, and pre-lubrication contribute to superior performance and long service life in demanding environments.
S71919 ACB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACB | Angular Contact Bearing with a specific contact angle and internal design. | Optimized for handling combined loads efficiently. |
| P4A | Indicates a P4 (ABEC-7) tolerance class with specific internal clearance/geometry. | Delivers superior running accuracy, low noise, and is suitable for high-speed operation. |
S71919 ACB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 25° contact angle and availability of preload provides high system rigidity and precise shaft positioning, critical for applications requiring minimal deflection.
- Superior Load Capacity: Engineered to support significant combined radial and axial loads. With a dynamic load rating of 3870 lbf and a static load rating of 3960 lbf, it offers reliable performance under demanding conditions.
- Optimized High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and smoother operation at the high limiting speed of 12,000 rpm.
- Sealed and Lubricated for Life: The sealed construction effectively excludes contaminants. Being pre-lubricated, it offers a maintenance-free solution within its specified temperature range (-30°C to 110°C).
S71919 ACB/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision and speed are paramount. Key application areas include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Medical and Dental Equipment
- Robotic Arms and Precision Gearboxes
