S71922 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S71922 CDGA/P4A Bearing Product Overview & Core Advantages
The S71922 CDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single bearing with Universal Matchable (SU) designation, it can be precisely paired with another identical bearing to form a preloaded duplex set, delivering superior performance under combined loads. Its P4A tolerance class and extra light preload (Class A) ensure minimal runout and vibration, making it ideal for high-speed spindles and other precision machinery.
S71922 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71922 | Precision bearing series with 110mm bore, 150mm OD, 20mm width |
| C | 15° contact angle design |
| DG | Universal duplex mounting (can be paired face-to-face or back-to-back) |
| A | Extra light preload (Class A) |
| P4A | High precision tolerance class (superior to ABEC 7) |
S71922 CDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with 15° contact angle enables the bearing to efficiently handle combined radial and axial loads in both directions. When used in a matched set, it provides exceptional system stiffness.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring minimal vibration and superior running accuracy for high-speed applications.
Optimized High-Speed Design: The phenolic resin cage and 28 high-precision chrome steel balls (12.7mm diameter) enable stable operation at limiting speeds up to 10,000 rpm.
Sealed & Lubricated for Life: The sealed construction with factory-applied grease protects against contamination and provides maintenance-free operation within the specified temperature range of -30°C to 110°C.
S71922 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Robotics - High-accuracy rotary joints and arm mechanisms
- Medical Equipment - CT scanners, dental drills, and laboratory instruments
- Aerospace Systems - Gyroscopes, navigation systems, and auxiliary power units
- High-Speed Motors - Spindle motors and high-frequency electric motors
