6308-ZNR/C3
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6308-ZNR/C3 Bearing Product Overview & Core Advantages
The 6308-ZNR/C3 is a single row deep groove ball bearing engineered for high-performance industrial applications. This metric bearing features a snap ring on its outer ring for secure axial location within a housing, simplifying installation and enhancing operational stability. Its shielded design offers effective protection against contaminant ingress while the C3 radial internal clearance makes it ideally suited for applications involving thermal expansion or heavy loads. With its high radial load capacity and robust construction, this bearing delivers reliable performance and long service life in demanding environments.
Model Code Breakdown
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| Z | One-sided Shield | Protects bearing interior from contaminants while allowing for some grease purging |
| NR | Snap Ring Groove with Snap Ring | Enables secure axial positioning, reduces housing design complexity and costs |
| /C3 | Greater than Normal Radial Internal Clearance | Accommodates thermal expansion, ideal for applications with high operating temperatures or heavy loads |
6308-ZNR/C3 Bearing Structural Features & Performance Benefits
Snap Ring Design: The integrated snap ring (fitted) provides a positive locating feature, eliminating the need for complex housing shoulders and enabling simpler, more cost-effective assembly. This enhances bearing stability and prevents axial displacement during operation.
Shielded Protection: The single shield effectively retains lubrication and excludes larger contaminants, extending bearing service life in moderately contaminated environments without significantly increasing rotational torque.
Optimized Internal Clearance: The C3 clearance is specifically engineered for applications where differential thermal expansion between the shaft and housing occurs, or where heavy loads are present. This prevents premature failure due to excessive preload, ensuring reliable operation under challenging conditions.
High-Quality Materials: Manufactured from chrome steel for both rings, balls, and cage, this bearing delivers consistent performance, excellent wear resistance, and durability across its specified temperature range of -30°C to 120°C.
6308-ZNR/C3 Bearing Typical Application Areas
- Electric Motors and Generators
- Industrial Gearboxes and Power Transmission Systems
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery
- Pumps and Compressors
- General Industrial Machinery requiring secure bearing location
