209 NR/C3
200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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209 NR/C3 Bearing Product Overview & Core Advantages
The 209 NR/C3 is a single row deep groove ball bearing designed for robust radial load capacity and reliable performance in general industrial applications. This metric bearing features a snap ring on its outer ring, enabling simplified axial location within a housing. Manufactured to ABEC 1 | ISO P0 tolerance standards, it offers consistent quality and interchangeability. A key performance feature is its C3 radial internal clearance, which makes it suitable for applications involving thermal expansion or where interference fits are used, ensuring optimal operational performance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 209 | Standard bearing series designation, indicating a metric deep groove ball bearing with a 45mm bore. |
| NR | Specifies a snap ring groove on the outer ring. This feature aids in axial positioning and can simplify housing design. |
| C3 | Indicates a greater than normal radial internal clearance. This is beneficial for applications with shaft or housing fits that reduce internal clearance, or where operational temperatures are elevated. |
209 NR/C3 Bearing Structural Features & Performance Benefits
- Snap Ring for Axial Location: The integrated snap ring (NR) provides a positive locating feature, simplifying assembly and reducing the need for complex housing shoulders or end caps.
- Optimized Radial Load Capacity: The single row deep groove construction is engineered to handle significant radial loads (Dynamic: 7913 lbf, Static: 6744 lbf), making it a durable choice for demanding applications.
- C3 Clearance for Versatility: The C3 clearance group accommodates thermal expansion and press fits, preventing premature bearing failure due to excessive preload and ensuring smooth operation.
- High-Quality Material Construction: Manufactured from chrome steel for both rings, balls, and cage, ensuring high strength, durability, and consistent performance under load.
- Open Design & High-Speed Capability: The open seal type allows for versatile lubrication options and contributes to a high limiting speed of 8,500 rpm, suitable for a wide range of operational speeds.
209 NR/C3 Bearing Typical Application Areas
The 209 NR/C3 is ideally suited for a variety of industrial machinery and equipment, including:
- Electric Motors and Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Industrial Fans and Blowers
- General machinery requiring reliable radial bearing support with simplified axial location.
