6208-RSNR/C3
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
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6208-RSNR/C3 Bearing Product Overview & Core Advantages
The 6208-RSNR/C3 is a single row deep groove ball bearing engineered for exceptional performance in demanding industrial applications. This precision bearing features a snap ring groove on its outer ring and comes pre-set with a C3 radial internal clearance, making it ideal for applications with thermal expansion or heavy interference fits. Its sealed design provides robust protection against contaminants, ensuring long-term reliability and reduced maintenance needs. The combination of high radial dynamic load capacity and a substantial limiting speed makes it a versatile and durable solution for a wide range of machinery.
6208-RSNR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6208 | Standard bearing series designation, indicating a single row deep groove ball bearing with a 40mm bore and 80mm outside diameter. |
| RS | Contact rubber seal on one side, providing effective protection against dust and moisture ingress. |
| NR | Snap ring groove on the outer ring, allowing for simplified axial location and secure mounting within a housing. |
| /C3 | Radial internal clearance greater than normal (C3 group). This is crucial for applications involving shaft expansion or heavy press fits to prevent operational binding and overheating. |
6208-RSNR/C3 Bearing Structural Features & Performance Benefits
- Robust Sealing & Protection: The contact rubber seal (RS) effectively shields the bearing's internals from contaminants like dust and splashing liquids, significantly extending service life and enabling operation in harsh environments.
- Simplified Mounting & Axial Location: The integrated snap ring groove (NR) on the outer ring eliminates the need for complex housing shoulders or end caps, simplifying assembly and providing a secure axial location, which enhances overall system rigidity.
- Optimized for Demanding Conditions: The C3 radial internal clearance is a key feature for applications with expected thermal expansion or where heavy interference fits are used. This prevents excessive preload, reduces friction, and mitigates the risk of premature failure.
- High Load & Speed Capacity: Manufactured from high-grade chrome steel for both rings and balls, this bearing delivers a high radial dynamic load rating of 6542 lbf and a limiting speed of 8,300 rpm, ensuring reliable performance under significant stress and velocity.
6208-RSNR/C3 Bearing Typical Application Areas
The 6208-RSNR/C3 is ideally suited for a broad spectrum of industrial machinery where reliability, ease of installation, and contamination resistance are paramount. Key application areas include:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
