S71922 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S71922 CD/P4ADGA Bearing Product Overview & Core Advantages
The S71922 CD/P4ADGA is a super-precision double row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. Operating under P4A tolerance class, this metric bearing is designed to simultaneously handle combined radial and axial loads from both directions. Its compact double-row design provides a high degree of stiffness in a minimal cross-section, making it an ideal solution for high-speed spindles and other precision machinery where reliability and dimensional stability are paramount.
S71922 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71922 | Basic bearing designation (Double Row Angular Contact, 110mm Bore, 150mm OD, 40mm Width) |
| CD | 15° contact angle and specific internal design for high-speed operation |
| P4A | Super precision tolerance class, exceeding ABEC 7/ISO P4 standards |
| DGA | Universal Matchable (SU) bearing pair, pre-loaded for immediate installation |
S71922 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact configuration provides superior radial and axial stiffness, enabling stable performance under combined loads. With a dynamic load rating of 22,725 lbf and static load rating of 32,175 lbf, this bearing offers robust support for demanding applications.
Precision Engineering: Manufactured to P4A tolerance class with an Extra light preload (Class A), the bearing ensures minimal runout and vibration. The optimized 15° contact angle balances axial and radial load capacity while maintaining high-speed capability.
High-Speed Performance: The phenolic cage provides excellent strength-to-weight ratio and smooth operation at high rotational speeds, supporting limiting speeds up to 10,000 rpm. The bearing comes pre-lubricated with grease suitable for the specified temperature range.
Matched Set Advantage: As part of a universally matchable (SU) pair, these bearings are supplied as a precision-matched set of two, ensuring optimal preload and performance when installed back-to-back or face-to-face.
S71922 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- Precision Rotary Tables: Indexing and positioning systems requiring high accuracy
- High-Frequency Spindles: PCB drilling and precision machining applications
- Medical Equipment: CT scanners and other diagnostic imaging systems
- Aerospace Systems: Gyroscopes and navigation equipment
- Robotic Arms: Precision joints and rotary actuators
