6308NR/C3 GJN
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6308NR/C3 GJN Bearing Product Overview & Core Advantages
The 6308NR/C3 GJN is a high-performance single row deep groove ball bearing engineered for demanding industrial applications. This metric bearing excels in handling substantial radial loads while accommodating moderate axial loads in both directions. Its defining feature is the integrated snap ring on the outer ring, which simplifies axial positioning within a housing and reduces assembly costs. Manufactured with Chrome Steel rings and balls, it offers excellent durability and is supplied with a C3 radial internal clearance, making it particularly suitable for applications with thermal expansion or where interference fits are used.
6308NR/C3 GJN Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| NR | Snap Ring Groove (fitted) | Provides a positive locating feature for the outer ring, simplifying housing design and assembly. |
| C3 | Greater than Normal Radial Internal Clearance | Accommodates thermal expansion and interference fits, preventing seizure in high-temperature or tightly fitted applications. |
| GJN | Polyurea Thickened Grease (Standard filling) | Offers a wide operating temperature range, excellent oxidation stability, and long-term lubrication for extended service intervals. |
6308NR/C3 GJN Bearing Structural Features & Performance Benefits
- Snap Ring Design: The outer ring is manufactured with a snap ring groove and is supplied with a snap ring. This allows for secure axial location in a simple, cost-effective housing, eliminating the need for complex end covers or shoulders.
- Optimized Internal Geometry: The deep groove raceway and high-quality chrome steel construction provide high radial load capacity and reliable performance under dynamic stresses.
- Precision & Reliability: Conforms to ABEC 1 | ISO P0 tolerance class, ensuring consistent performance and interchangeability for a wide range of industrial uses.
- Enhanced Operational Range: The C3 clearance and polyurea grease enable stable operation across a broad temperature range (-30°C to 120°C), making it a robust solution for varying operational conditions.
6308NR/C3 GJN Bearing Typical Application Areas
This versatile bearing is ideally suited for applications requiring secure axial location and reliable performance under radial loads. Common uses include:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
