S71916 CEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S71916 CEGA/P4A Bearing Product Overview & Core Advantages
The S71916 CEGA/P4A is a super-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. As a single bearing from a universally matchable (SU) pair, it is designed to accommodate combined loads—simultaneously handling radial loads and axial loads in one direction. Its P4A tolerance class ensures extremely tight dimensional and running accuracy, making it ideal for high-precision spindles. The combination of a phenolic cage and pre-lubrication contributes to its high limiting speed and reliable operation, offering a compact, high-rigidity solution for demanding machinery.
S71916 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S | Stainless Steel (Note: Based on provided Chrome Steel material, this may be a series prefix) |
| 719 | High-Precision Angular Contact Bearing Series |
| 16 | Bore Diameter Code (80 mm) |
| CE | Contact Angle of 15° |
| GA | Light Preload (Class A) |
| P4A | Super Precision Tolerance Class (Exceeds ABEC 7) |
S71916 CEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 15° contact angle and robust construction provides high rigidity, enabling the bearing to support significant combined radial and axial loads.
- Superior High-Speed Performance: The lightweight, high-strength phenolic resin cage minimizes centrifugal forces, reduces friction, and allows for a high limiting speed of 28,000 rpm. The optimized internal geometry further enhances high-speed stability.
- Exceptional Precision: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for maintaining accuracy in precision machinery.
- Optimized for Matched Sets: As a universally matchable (SU) bearing, it can be paired with another identical bearing in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement to increase system rigidity and load capacity.
- Ready-to-Install & Sealed: The bearing is sealed and pre-lubricated with grease, protecting against contamination and simplifying installation for immediate, maintenance-free operation.
S71916 CEGA/P4A Bearing Typical Application Areas
The S71916 CEGA/P4A is the bearing of choice for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Medical Equipment: Dental handpieces, centrifuges, and imaging scanners.
- Aerospace & Defense: Gyroscopes, radar systems, and navigation instruments.
- High-Frequency Motors & Spindles: Motors for PCB drilling and high-speed machining.
