626-2ZTN9/C3HHT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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626-2ZTN9/C3HHT Bearing Product Overview & Core Advantages
The 626-2ZTN9/C3HHT is a metric single row deep groove ball bearing engineered for high-performance applications requiring reliable operation under radial loads. This shielded bearing delivers exceptional value through its balanced design, offering robust performance in a compact form factor. Its construction ensures smooth operation and is particularly suited for applications demanding precision rotation and consistent performance within its specified load and speed ranges. The combination of a nylon cage and optimized internal geometry contributes to its low noise and low torque characteristics.
626-2ZTN9/C3HHT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| 626 | Standard deep groove ball bearing series with 6mm bore, 19mm OD. | Proven, widely compatible design. |
| 2Z | Bearing is equipped with shields on both sides. | Provides effective protection against contamination from solid particles, enhancing bearing life. |
| TN9 | Polyamide (Nylon) cage, snap-type design. | Lightweight, promotes high-speed capability, low friction, and quiet operation. |
| C3 | Greater than normal radial internal clearance. | Accommodates thermal expansion in applications with higher operating temperatures or heavy loads, preventing preload and seizure. |
| HHT | Heat stabilized cage material. | Ensures dimensional stability and performance integrity across the specified temperature range. |
626-2ZTN9/C3HHT Bearing Structural Features & Performance Benefits
The performance of the 626-2ZTN9/C3HHT is derived from its specific construction and material selection:
- Shielded Protection (2Z): The non-contact steel shields on both sides effectively retain the factory-applied lubricant and exclude larger contaminants, making the bearing suitable for cleaner environments without the added friction of contact seals.
- High-Speed Nylon Cage (TN9): The lightweight nylon cage minimizes centrifugal forces, reduces vibration, and allows for a higher limiting speed (32,000 rpm). It also offers excellent compatibility with common lubricants.
- Optimized Internal Clearance (C3): The C3 radial internal clearance is a critical feature for applications prone to thermal expansion, ensuring stable operation and preventing premature failure due to excessive preload.
- Chrome Steel Components: Manufactured from high-grade chrome steel for both rings and balls, this bearing provides a high dynamic and static load rating (447 lbf / 161 lbf) and excellent wear resistance.
626-2ZTN9/C3HHT Bearing Typical Application Areas
The 626-2ZTN9/C3HHT is a versatile component found in a wide array of precision machinery and devices, including:
- Small Electric Motors (e.g., cooling fans, servo motors)
- Office Automation Equipment (printers, scanners, copiers)
- Medical Devices and Instrumentation
- Precision Gearboxes and Drive Systems
- Radio Control Models and Small Power Tools
