S71916 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71916 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The S71916 CE/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed, universally matchable bearing features a P4A tolerance class for superior running accuracy and a ceramic ball and phenolic cage construction, enabling outstanding high-speed capabilities and thermal stability. Its 15° contact angle and extra light preload (Class A) make it ideally suited for applications requiring high rigidity and the ability to handle combined loads (radial and axial) simultaneously.
S71916 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit / Implication |
|---|---|---|
| S7 | Bearing Series | Indicates a specific high-precision, high-speed series. |
| 1916 | Bore (80mm) & OD (110mm) | Defines the critical bearing dimensions. |
| CE | Contact Angle (15°) | Optimized for handling combined radial and axial loads. |
| HC | Hybrid Ceramic (Ceramic Balls) | Enables higher speeds, reduced friction, and longer service life. |
| P4A | Tolerance Class (ABEC 7 / P4) | Guarantees extremely tight dimensional and running accuracy for precision applications. |
| DGA | Sealed & Grease Lubricated | Provides contamination protection and is lubricated for life, offering a maintenance-free solution. |
S71916 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperatures, and increases the limiting speed (28,000 rpm). This construction also provides superior resistance to electrical arcing and operates effectively in marginal lubrication conditions.
Phenolic Resin Cage: The lightweight and robust phenolic cage contributes to high-speed stability, excellent acceleration/deceleration characteristics, and provides good slip characteristics under high loads.
Universal Matchable Design (SU): This bearing is universally matchable, meaning any two bearings can be paired in a duplex set (back-to-back or face-to-face) without selective assembly, simplifying mounting and ensuring optimal preload and stiffness.
Sealed & Greased for Life: The integral seals protect against contaminants and retain the high-performance grease, making the bearing ready-to-use and maintenance-free throughout its service life within the specified temperature range (-30°C to 110°C).
S71916 CE/HCP4ADGA Bearing Typical Application Areas
The S71916 CE/HCP4ADGA is engineered for high-performance machinery where precision, speed, and reliability are paramount. Typical applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instruments.
