S71914 CEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S71914 CEGA/P4A Bearing Product Overview & Core Advantages
The S71914 CEGA/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a single bearing with Universal Matchable (SU) designation, it can be paired with another identical bearing to form a precisely preloaded set, offering superior performance in a compact envelope. Its P4A tolerance class ensures extremely tight dimensional and running accuracy, making it ideal for high-speed spindles and other precision machinery. The bearing is capable of supporting combined loads (radial and axial) simultaneously, with a 15° contact angle optimized for high-speed operation and rigidity.
S71914 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel (typically refers to rings) |
| 7 | Angular Contact Ball Bearing |
| 19 | High Speed Series / Design |
| 14 | Bore Diameter Code (70 mm) |
| CE | Contact Angle Designation (15°) |
| GA | Light Preload |
| P4A | High Precision Tolerance Class (exceeding ABEC 7) |
S71914 CEGA/P4A Bearing Structural Features & Performance Benefits
This bearing's performance is derived from its meticulous construction. The phenolic cage is a key contributor to its high-speed capability, offering excellent strength-to-weight ratio and smooth operation at the limiting speed of 28,000 rpm. The sealed design protects the precision-ground chrome steel components from contamination, ensuring long-term reliability and consistent performance. With a radial dynamic load rating of 4972 lbf and a radial static load rating of 3600 lbf, it provides robust support for demanding applications. The universal matching feature allows for simplified mounting and optimal preload control when used in pairs, resulting in a system with exceptional stiffness and rotational accuracy.
S71914 CEGA/P4A Bearing Typical Application Areas
The S71914 CEGA/P4A is engineered for high-performance applications where precision and speed are critical. Its primary use is in:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In arm joints and high-accuracy positioning systems.
- High-Frequency Motors and Spindles: Used in PCB drilling and dental handpieces.
- Advanced Medical Equipment: Such as CT scanners and laboratory centrifuges.
- Aerospace Instrumentation: In guidance systems and auxiliary power units.
