S71919 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71919 ACD/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
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
10395 lbf
Radial static load rating
11700 lbf
Limiting speed
8.5 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:
$ 1423.32
/ each
In Stock
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S71919 ACD/P4A Bearing Product Overview & Core Advantages
The S71919 ACD/P4A is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and reliability. This metric precision bearing is distinguished by its P4 (ABEC-7) tolerance class, ensuring minimal runout and superior rotational accuracy. Its key advantage lies in its ability to accommodate high combined loads, efficiently handling both radial forces and substantial thrust loads in one direction due to its 25° contact angle. Pre-loaded and factory-lubricated, it offers high rigidity and is ready for immediate installation in high-speed, high-precision systems.
S71919 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel (Note: Specification indicates Chrome Steel, this may be a series designation) |
| 7 | Angular Contact Ball Bearing |
| 1919 | Size Series: 19 (Width Series) & 19 (Bore Code: 95mm) |
| AC | 25° Contact Angle |
| D | Enhanced internal design and preload |
| P4A | P4 (ABEC-7) Tolerance Class with specific running accuracy requirements |
S71919 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to a P4 tolerance class with tight dimensional control on the 95 mm bore and 130 mm outside diameter, this bearing provides exceptional running accuracy and system stability.
- Superior Load Capacity: The 25° contact angle and robust construction enable it to support high radial dynamic load ratings of 10,395 lbf and static load ratings of 11,700 lbf, making it ideal for combined load applications.
- Optimized High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and low centrifugal forces, contributing to a high limiting speed of 8,500 rpm. The phenolic material also offers excellent performance under lubrication.
- Sealed and Lubricated for Longevity: As a sealed bearing, it is protected from contamination. Pre-lubricated from the factory, it operates reliably within a temperature range of -30°C to 110°C, reducing maintenance needs.
S71919 ACD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery requiring high speed, rigidity, and accuracy. Key applications include:
- Machine Tool Spindles for milling, grinding, and turning centers
- High-speed Precision Spindles in PCB drilling and routing
- Rotary components in Medical and Dental Equipment
- High-precision Robotic Arms and Actuators
- Axles and gearboxes in Aerospace and Defense systems
