6308 NTN9/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 NTN9/C3 Bearing Product Overview & Core Advantages
The 6308 C3 is a single row deep groove ball bearing engineered for exceptional radial load capacity and high-speed operation. Featuring a C3 radial internal clearance, this metric bearing is specifically designed for applications requiring accommodation for thermal expansion and heavy-duty operating conditions. Its precision construction with ABEC 1 | ISO P0 tolerance ensures reliable performance, while the open design and snap ring groove provide versatile mounting options for robust industrial machinery.
6308 NTN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 63 | Series designation indicating medium width and medium diameter |
| 08 | Bore diameter code (40 mm) |
| C3 | Radial internal clearance greater than normal, suitable for applications with thermal expansion or heavy loads |
6308 NTN9/C3 Bearing Structural Features & Performance Benefits
Optimized Load Distribution: The single row deep groove raceway geometry enables superior radial load capacity (9509 lbf dynamic, 5395 lbf static) while accommodating moderate axial loads in both directions.
High-Speed Capability: With a limiting speed of 11,000 rpm and nylon cage construction, this bearing delivers smooth operation at high rotational speeds with reduced friction and heat generation.
Thermal Stability: The C3 clearance provides adequate internal space to accommodate thermal expansion during operation, preventing premature failure in high-temperature applications (up to 120°C).
Precision Engineering: Manufactured to ABEC 1 | ISO P0 tolerance standards with tight dimensional control (bore tolerance: -0.01mm to 0), ensuring consistent performance and easy installation.
Mounting Versatility: The integrated snap ring groove on the outer ring facilitates secure axial positioning without requiring additional housing components.
6308 NTN9/C3 Bearing Typical Application Areas
- Electric Motors and industrial motor systems
- Gearboxes and power transmission equipment
- Industrial Pumps and compressor systems
- Material Handling Equipment including conveyors and rollers
- Agricultural Machinery and automotive components
- General Industrial Machinery requiring reliable radial support
