6308 TN9/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6308 TN9/C3 Bearing Product Overview & Core Advantages
The 6308 C3 is a single row deep groove ball bearing engineered for reliable performance in general industrial applications. This metric bearing features an open design and is manufactured to ABEC 1 | ISO P0 tolerance standards, offering an excellent balance of precision and cost-effectiveness. Its key advantage lies in its robust construction, capable of handling significant radial loads while also accommodating moderate axial loads in both directions. The specified C3 radial internal clearance makes it particularly suitable for applications where thermal expansion is a concern, ensuring stable operation across a wide temperature range.
6308 TN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6308 | Basic Bearing Number | Denotes a medium series, single row deep groove ball bearing with a 40mm bore, 90mm OD, and 23mm width. |
| C3 | Radial Internal Clearance | Indicates a clearance greater than the Normal (CN) group. This is crucial for applications with expected thermal expansion, preventing preload and ensuring smooth operation. |
6308 TN9/C3 Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High-Quality Components: The geometry of the raceway and the use of chrome steel for both rings and balls provide high dynamic and static load ratings (915 lbf / 5395 lbf), ensuring durability and long service life under demanding conditions.
- Nylon Cage (Polyamide Cage): The lightweight cage material contributes to lower friction and quieter operation, allowing for higher limiting speeds (7,500 rpm). It also offers excellent resistance to wear and is suitable for a wide operating temperature range.
- C3 Internal Clearance: This feature is a key performance differentiator. It accommodates shaft and housing fits that may cause clearance reduction, as well as differential thermal expansion between the bearing and its surrounding components, preventing binding and overheating.
- Open Design & Lubrication Flexibility: The open seal type allows for a variety of lubrication methods to be used, enabling optimization based on specific application requirements for speed, temperature, and load.
6308 TN9/C3 Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Fans
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
