S71916 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S71916 CD/P4ADGA Bearing Product Overview & Core Advantages
The S71916 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a universal matchable (SU) bearing supplied in a pre-matched duplex set, it delivers superior performance in handling combined radial and axial loads. Manufactured to P4A tolerance class with an extra light preload and 15° contact angle, this bearing offers high rigidity and high-speed capability, making it ideal for precision spindles and other high-performance machinery.
S71916 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, universal matchable duplex set | Optimized for combined loads, provides axial rigidity in either direction |
| P4A | High precision tolerance class (equivalent to ABEC 7) | Exceptional running accuracy, reduced vibration and noise |
| DGA | Sealed construction with grease lubrication | Contamination protection, extended service life, maintenance-free operation |
S71916 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex bearing arrangement with universal matching creates a rigid bearing system capable of handling significant combined loads from multiple directions. The 15° contact angle provides optimal axial load capacity while maintaining excellent radial load performance.
Precision Performance: Manufactured to P4A tolerance standards with extremely tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0), this bearing ensures minimal runout and vibration for high-precision applications.
High-Speed Capability: The phenolic cage material and optimized internal geometry enable high-speed operation up to 28,000 rpm, while the sealed construction with premium grease ensures reliable lubrication at elevated speeds.
Maintenance-Free Operation: Factory-sealed with high-quality grease, the bearing offers long-term lubrication and protection against contamination, reducing maintenance requirements and extending service life across the operating temperature range of -30°C to 110°C.
S71916 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Motors: Spindle motors, servo motors, and other high-RPM electric motors
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, actuators, and auxiliary power units
