S71916 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S71916 CDGA/P4A Bearing Product Overview & Core Advantages
The S71916 CDGA/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a universal matchable bearing, it can be mounted in various preload configurations to achieve optimal system rigidity. Its key advantages include the ability to handle combined radial and axial loads simultaneously, superior running accuracy guaranteed by the P4A tolerance class, and high-speed capability enabled by the phenolic cage and premium grease lubrication. This bearing is engineered for compact, high-reliability installations in demanding machinery.
S71916 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71916 | Precision bearing series with 80mm bore, 110mm OD, 16mm width |
| CD | 15° contact angle, optimized for high-speed operation |
| GA | Precision Extra light preload (Class A) |
| P4A | Super-precision tolerance class, tighter than ABEC 7 |
S71916 CDGA/P4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration, providing exceptional rotational accuracy for precision spindles. The universal matching design (SU) allows for precise preload control when mounted in pairs, delivering high system rigidity.
Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces and inertial drag, contributing to the high limiting speed of 28,000 rpm. The standard grease lubrication is formulated for stable performance across the operating temperature range.
Superior Load Capacity: With a 15° contact angle and robust construction, the bearing effectively supports combined loads. It features a dynamic load rating of 8190 lbf and a static load rating of 8775 lbf, ensuring reliable performance under demanding conditions.
S71916 CDGA/P4A Bearing Typical Application Areas
The S71916 CDGA/P4A is ideally suited for high-performance applications requiring precision and speed, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Drives in robotics and automation systems
- High-frequency Spindle Motors
- Medical Equipment (e.g., dental handpieces, high-speed centrifuges)
- Aerospace instrumentation and auxiliary systems
