627-2RSH/GXJ
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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627-2RSH/GXJ Bearing Product Overview & Core Advantages
The 627-2RSH/GXJ is a metric single row deep groove ball bearing designed for high reliability in compact applications. This sealed bearing excels in handling radial loads and is characterized by its ABEC 1 precision and robust construction. Its primary advantages include effective sealing for contaminant exclusion and a wide operating temperature range, making it a versatile and durable choice for various industrial applications requiring consistent performance.
627-2RSH/GXJ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 627 | Basic Bearing Series | Denotes a metric, single row deep groove ball bearing with a 7mm bore, 22mm OD, and 7mm width. |
| 2RSH | Sealing Type | Indicates contact seals on both sides. The "RSH" suffix typically refers to NBR rubber seals with a steel insert, offering excellent sealing performance against contaminants and moisture. |
| GXJ | Lubrication | Specifies a high-performance, synthetic grease fill. This grease is selected for its stability and long service life across the specified temperature range. |
627-2RSH/GXJ Bearing Structural Features & Performance Benefits
Optimized for Radial Loads: The single row deep groove raceway geometry is fundamentally designed to support significant radial dynamic load ratings (629 lbf), providing reliable operation under primary radial forces.
Enhanced Contamination Protection: The 2RSH contact seals are a critical feature, effectively shielding the internal components from dust, dirt, and moisture. This extends bearing life and reduces maintenance needs in challenging environments.
Precision and Consistency: Manufactured to ABEC 1 (ISO P0) tolerance class with a CN radial internal clearance, this bearing ensures smooth running and predictable performance, which is essential for consistent operation in automated equipment.
Robust Material Construction: All core components—rings, balls, and cage—are made from chrome steel, providing high hardness, wear resistance, and a long operational lifespan.
Pre-Lubricated for Longevity: The bearing is factory-filled with GXJ grease, making it ready for immediate use and ensuring optimal lubrication from the start, which contributes to its limiting speed of 30,000 rpm.
627-2RSH/GXJ Bearing Typical Application Areas
The 627-2RSH/GXJ is ideally suited for a wide range of compact machinery and devices where reliability and contamination resistance are key. Common applications include:
- Small Electric Motors: Used in fans, blowers, and small power tools.
- Office Automation Equipment: Such as printers, scanners, and copiers.
- Medical Devices: Low-noise and reliable components in diagnostic and analytical equipment.
- Conveyor Systems: Idler rollers and guide pulleys in light-duty conveying applications.
- Food Processing Machinery: Suitable for secondary zones where sealed units are beneficial.
