6309 Y/C78
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6309 Y/C78 Bearing Product Overview & Core Advantages
The 6309 is a single row deep groove ball bearing designed for exceptional performance in radial load applications. Engineered with precision tolerances (ABEC 1 | ISO P0), it offers reliable operation and long service life. Its open design allows for versatile lubrication options, making it suitable for a wide range of industrial machinery. The bearing is constructed entirely from high-grade chrome steel, ensuring durability and consistent performance under demanding conditions.
6309 Y/C78 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation |
|---|---|
| 63 | Series designation indicating medium duty, deep groove design |
| 09 | Bore diameter code (45 mm) |
| Open | No seals or shields, allowing for high-speed operation and custom lubrication |
| CN Clearance | Standard radial internal clearance for normal operating conditions |
6309 Y/C78 Bearing Structural Features & Performance Benefits
This bearing's single row deep groove construction is optimized for handling high radial loads with a dynamic load rating of 11915 lbf. The precision-ground raceways and balls, made from chrome steel, minimize friction and ensure smooth rotation. The absence of seals (open type) contributes to its high limiting speed of 6,700 rpm. The chrome steel cage provides robust ball guidance, maintaining alignment and stability at high rotational speeds. With a standard CN clearance, it is well-suited for most industrial applications where thermal expansion is a consideration.
6309 Y/C78 Bearing Typical Application Areas
- Electric Motors and Generators
- Industrial Gearboxes and Power Transmission Systems
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial support
