6211 NR
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6211 NR Bearing Product Overview & Core Advantages
The 6211 NR is a single row deep groove ball bearing designed for exceptional radial load capacity and reliable performance in demanding applications. Its key distinguishing feature is the snap ring groove on the outer ring (denoted by the NR suffix), which enables simplified axial location and secure housing fit without requiring complex machining. Manufactured from high-grade chrome steel with a stainless steel cage, this bearing offers robust construction, long service life, and is suitable for a wide operating temperature range. Its open design allows for versatile lubrication options, making it a highly adaptable and cost-effective solution for industrial machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6211 | Standard bearing series designation indicating a single row deep groove ball bearing with a 55mm bore, 100mm OD, and 21mm width. |
| NR | Signifies a snap ring groove on the outer ring. This feature allows for easy axial location and secure mounting within a housing. |
6211 NR Bearing Structural Features & Performance Benefits
- Snap Ring Groove for Simplified Assembly: The integrated snap ring groove eliminates the need for complex housing shoulders or separate locating components, reducing assembly time and cost while ensuring secure axial positioning.
- High Radial Load Capacity: The deep groove raceway and optimized internal geometry enable the bearing to handle significant radial dynamic loads (10,386 lbf) and radial static loads (6,519 lbf).
- Optimized for High-Speed Operation: The lightweight stainless steel cage minimizes centrifugal forces, contributing to a high limiting speed of 9,000 rpm and stable performance at high rotational velocities.
- Versatile Lubrication & Maintenance: The open seal type design provides maximum flexibility for initial lubrication and re-lubrication, allowing the use of various greases or oils to suit specific application requirements.
- Standard Precision & Clearance: Manufactured to P0 tolerance class with CN radial internal clearance, this bearing delivers consistent and reliable performance for general industrial applications.
6211 NR Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring secure bearing location
