S71922 ACD/P4ATGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71922 ACD/P4ATGA Bearing Product Overview & Core Advantages
The S71922 ACD/P4ATGA is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. Its design enables it to simultaneously support substantial combined loads (radial and bidirectional axial loads), making it an ideal choice for complex load scenarios. Manufactured to a P4A tolerance class and featuring a universal matchable (SU) design, this bearing offers superior running accuracy, high rigidity, and optimized performance in high-speed operations. Its compact structure and premium material composition ensure long-term operational stability in precision machinery.
S71922 ACD/P4ATGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71922 | Basic bearing designation, indicating a double row angular contact ball bearing with a 110 mm bore. |
| ACD | Contact angle of 25° and universal matchable (SU) design. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards for running accuracy. |
| TGA | Indicates a phenolic (Phenolic) cage and pre-lubrication with grease. |
S71922 ACD/P4ATGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and a 25° contact angle provide high rigidity, enabling the bearing to effectively handle significant combined loads and bidirectional axial loads, with a radial dynamic load rating of 28,575 lbf.
- Superior High-Speed Performance: The lightweight and robust phenolic cage minimizes centrifugal forces and friction, contributing to a high limiting speed of 10,000 rpm. The optimized internal geometry further enhances high-speed capability.
- Precision & Stability: Manufactured to P4A tolerance class with tight dimensional controls on the bearing dimensions (bore, OD, and width), ensuring exceptional running accuracy and minimal vibration.
- Long-Term Reliability & Maintenance: The sealed design and pre-lubrication with high-quality grease protect against contamination and provide reliable operation within a temperature range of -30°C to 110°C, reducing the need for maintenance.
S71922 ACD/P4ATGA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
