S71922 ACE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71922 ACE/P4A
Basic Information
System of measurement
Metric
Weight
0.85 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8482 lbf
Radial static load rating
7312 lbf
Limiting speed
10.3 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:
$ 1844.98
/ each
In Stock
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S71922 ACE/P4A Bearing Product Overview & Core Advantages
The S71922 ACE/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This single-row bearing features a 25° contact angle and is supplied with a P4 (ABEC-7) tolerance class, making it ideal for applications where high rotational accuracy and system rigidity are paramount. Its key advantages include the ability to accommodate combined loads (simultaneous radial and axial loads) and its readiness for preload arrangements, which significantly enhances system stiffness and rotational precision.
S71922 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S | Designates a super-precision bearing series. |
| 7 | Indicates an angular contact ball bearing design. |
| 1922 | Specifies the bore diameter (110 mm) and outside diameter (150 mm) series. |
| ACE | A specific internal design code from the manufacturer, often relating to contact angle and internal clearance optimized for preload. |
| P4A | Denotes the tolerance class P4 (ABEC-7) and specific running accuracy requirements. The 'A' suffix typically indicates a specific deviation in width and radial runout tolerance. |
S71922 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 tolerance class with a 25° contact angle, this bearing delivers superior rotational accuracy and system stiffness, especially when used in preloaded configurations. The phenolic resin cage ensures stable operation at high speeds.
- Superior Load Capacity: The angular contact design is engineered to handle significant combined radial and axial loads simultaneously, with a dynamic load rating of 8482 lbf and a static load rating of 7312 lbf.
- Optimized High-Speed Performance: The lightweight phenolic cage and precision-ground chrome steel components contribute to a high limiting speed of 10,300 rpm, making it suitable for high-speed spindle applications.
- Sealed and Lubricated for Longevity: The bearing comes sealed and pre-lubricated, protecting against contamination and providing reliable operation within a temperature range of -30°C to 110°C without immediate need for re-lubrication.
S71922 ACE/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery and equipment, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors and Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
- Aerospace Instrumentation
