S7016 CEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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S7016 CEGA/HCP4A Bearing Product Overview & Core Advantages
The S7016 CEGA/HCP4A is a high-precision, single-row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with a 15° contact angle and an extra light preload (Class A), it is optimized to handle combined radial and axial loads simultaneously. Its construction using ceramic balls and a phenolic cage contributes to superior high-speed capabilities and reduced rotational mass. As a Universal Matchable (SU) bearing, it can be precisely paired with another identical bearing to form a pre-loaded duplex set, offering enhanced system rigidity and running accuracy. This bearing is sealed and pre-lubricated for long-term, maintenance-free operation in high-precision spindles and other critical machinery.
S7016 CEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance & Advantage |
|---|---|---|
| S7016 | Basic bearing series and size designation (80mm bore, 125mm OD). | Denotes the core bearing dimensions and internal geometry. |
| C | 15° nominal contact angle. | Optimized for applications requiring a balance of radial and axial load capacity. |
| EGA | Precision class designation. | Indicates super-precision tolerances for minimal runout and vibration. |
| HC | Hybrid Ceramic construction. | Features ceramic balls for higher speed, lower friction, and longer life. |
| P4A | Tolerance class (equivalent to ABEC 7 / ISO P4). | Guarantees extremely tight dimensional and running accuracy for high-precision applications. |
S7016 CEGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables a higher limiting speed compared to all-steel bearings. This also provides electrical insulation and increased resistance to wear.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent dimensional stability and guidance of the ceramic balls at very high speeds, contributing to smooth and quiet operation.
- Super-Precision Tolerances (P4A): Manufactured to the strictest tolerance class P4A, this bearing delivers exceptional running accuracy, minimal vibration, and predictable performance, which is critical for machine tool spindles.
- Optimized Preload (Class A): The extra light preload minimizes axial and radial play without generating excessive heat, resulting in superior positioning accuracy and system rigidity.
- Sealed & Pre-Lubricated: The integral seals protect against contamination, and the factory-applied high-speed grease ensures immediate, reliable operation and long service life without maintenance.
S7016 CEGA/HCP4A Bearing Typical Application Areas
The S7016 CEGA/HCP4A is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy positioning systems.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and surgical drill spindles.
- Test & Measurement Equipment: Coordinate measuring machines and optical scanners.
