6306-2RS1NR/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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6306-2RS1NR/C3 Bearing Product Overview & Core Advantages
The 6306-2RS1NR/C3 is a single row deep groove ball bearing engineered for high performance and reliability in demanding applications. This sealed bearing features a snap ring groove on its outer ring for simplified axial location and secure mounting. Its primary characteristics include the ability to accommodate significant radial loads and moderate axial loads in both directions. The combination of a C3 radial internal clearance and ABEC 1 precision makes it suitable for applications with thermal expansion or where moderate operational speeds are required. It is a robust, pre-lubricated, and ready-to-install component designed for long service life.
Model Code Breakdown
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 6306 | Basic bearing series and size designation (30mm bore, 72mm OD, 19mm width). | Standard metric dimensions for easy interchangeability and sourcing. |
| 2RS1 | Contact seals on both sides of the bearing. | Provides excellent protection against contaminants and retains lubricant, enhancing bearing life. |
| NR | Snap ring groove on the outer ring. | Facilitates axial location and secure mounting in housings, simplifying assembly. |
| C3 | Radial internal clearance greater than Normal (CN) group. | Accommodates thermal expansion in applications, preventing preload and potential seizure. |
6306-2RS1NR/C3 Bearing Structural Features & Performance Benefits
Robust Construction & High Load Capacity: Manufactured from chrome steel for rings, balls, and cage, this bearing offers high strength and durability. Its single row deep groove geometry is optimized to handle high radial dynamic load ratings (6002 lbf) and static loads (3372 lbf), making it a reliable choice for heavy-duty operations.
Effective Sealing & Maintenance-Free Operation: The 2RS1 contact seals are a critical feature, providing a high degree of protection against dust, moisture, and other particulate contaminants. Combined with the factory-applied lubricant, this creates a sealed and pre-lubricated unit that is maintenance-free for the majority of its service life, reducing downtime and operational costs.
Optimized for Operational Stability: The C3 internal clearance is selected for applications where differential thermal expansion between the shaft and housing is expected. This prevents excessive preload at operating temperatures, ensuring smooth running and contributing to the bearing's limiting speed of 9,600 rpm. The snap ring groove (NR) adds to the overall stability by providing a positive axial location.
6306-2RS1NR/C3 Bearing Typical Application Areas
The 6306-2RS1NR/C3 is versatile and finds use in a wide range of industrial machinery and equipment, including:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring reliable, sealed bearing solutions.
