6309-ZNDR/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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6309-ZNDR/C3 Bearing Product Overview & Core Advantages
The 6309-ZNDR/C3 is a single row deep groove ball bearing designed for robust performance in demanding industrial applications. This metric bearing excels in handling high radial loads and moderate axial loads in both directions. Its key advantages include a snap ring groove on the outer ring for secure axial location, shielded construction for contaminant protection, and an optimized C3 radial internal clearance for applications involving thermal expansion or heavy loads. Manufactured to ABEC 1 | ISO P0 tolerance standards, it delivers reliable, precision operation.
6309-ZNDR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| Z | Shield on one side | Protects bearing interior from large particulate contaminants. |
| N | Snap ring groove on the outer ring | Enables simple and secure axial location within the housing, reducing assembly complexity. |
| DR | Contact seal on one side (opposite the Z shield) | Provides superior sealing against dust and moisture compared to a shield alone. |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion and interference fits, preventing preload and ensuring smooth operation under heavy loads. |
6309-ZNDR/C3 Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Manufactured from chrome steel for both rings, balls, and cage, this bearing offers high strength and durability. With a dynamic load rating of 11915 lbf and a static load rating of 7194 lbf, it is engineered to handle significant radial loads in demanding environments.
- Secure Axial Location: The integrated snap ring groove (N) on the outer ring simplifies housing design and provides a positive method for axial location, preventing creep under load.
- Enhanced Sealing & Contamination Protection: The combination of a shield (Z) and a contact seal (DR) offers a high level of protection against contaminants, making it suitable for harsh or dirty environments and contributing to a longer service life.
- Optimized Internal Clearance: The C3 clearance is a critical feature for applications where shaft and housing fits, or operational temperatures, could otherwise lead to detrimental bearing preload, ensuring reliable performance.
6309-ZNDR/C3 Bearing Typical Application Areas
The 6309-ZNDR/C3 is ideally suited for a wide range of industrial machinery requiring reliable, heavy-duty performance with simplified mounting. Common applications include:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Conveyors
- Agricultural and Construction Machinery
- Vibrating Screens and other equipment where the snap ring groove is beneficial for assembly.
