6308-2Z/C4WT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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6308-2Z/C4WT Bearing Product Overview & Core Advantages
The 6308-2Z/C4WT is a single row deep groove ball bearing designed for reliable performance in demanding applications. This shielded bearing offers robust radial load capacity and is characterized by its C4 radial internal clearance, making it suitable for applications with thermal expansion or where interference fits are used. Its metric dimensions (40mm bore, 90mm OD, 23mm width) and ABEC 1 precision ensure consistent operation and easy integration into industrial machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6308 | Basic series designation for a medium-duty, single row deep groove ball bearing |
| 2Z | Non-contact steel shields on both sides, providing effective protection against contaminants while maintaining low friction |
| C4 | Greater than normal radial internal clearance, ideal for applications with shaft expansion or heavy interference fits |
| WT | Indicates the bearing is supplied without lubrication (dry) |
6308-2Z/C4WT Bearing Structural Features & Performance Benefits
Optimized Load Distribution: The single row deep groove raceway geometry enables high radial dynamic load rating of 915 lbf and exceptional radial static load capacity of 5395 lbf, providing reliable performance under substantial loads.
Enhanced Operational Stability: The C4 radial clearance accommodates thermal expansion in high-speed applications (up to 7,500 rpm) and compensates for interference fits, reducing operational stress and extending service life.
Contaminant Protection: Both sides feature non-contact steel shields (2Z) that effectively exclude contaminants while maintaining low running torque, making the bearing suitable for dirty environments.
Material Integrity: Constructed entirely from chrome steel for rings, balls, and cage, ensuring consistent hardness, wear resistance, and dimensional stability across the operating temperature range of -30°C to 120°C.
6308-2Z/C4WT Bearing Typical Application Areas
- Electric Motors and Industrial Gearboxes requiring reliable radial support
- Material Handling Equipment such as conveyor rollers and pulleys
- Agricultural Machinery including tractor components and harvesters
- Industrial Fans and Blowers operating at moderate to high speeds
- Pump Systems where contaminant exclusion is critical
- General Industrial Machinery requiring standard precision bearings with extended internal clearance
