6218NR/C3
6200 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6218NR/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02 mm to 0
Outside diameter
160 mm
Outside diameter tolerance
-0.025 mm to 0
Width
30 mm
Width tolerance
-0.12 mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
21604 lbf
Radial static load rating
16074 lbf
Limiting speed
4 X 1000 rpm
Lubrication
None
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 103.29
/ each
In Stock
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6218NR/C3 Bearing Product Overview & Core Advantages
The 6218NR/C3 is a single row deep groove ball bearing engineered for robust performance in demanding industrial applications. This metric bearing is characterized by its ability to accommodate high radial loads and moderate axial loads in both directions. A key feature is the snap ring groove on the outer ring, which simplifies axial location and housing design, contributing to a compact and secure assembly. Manufactured to ABEC 1 | ISO P0 tolerance standards with a C3 radial internal clearance, it is designed for applications where operational conditions may cause thermal expansion, ensuring reliable performance and extended service life.
6218NR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| NR | Snap Ring Groove on the outer ring | Enables simplified axial location and secure mounting, reducing the need for complex housing shoulders. |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in applications with high operating temperatures or heavy loads, preventing premature failure. |
6218NR/C3 Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The single row deep groove construction, combined with high-quality chrome steel rings and balls, provides a high radial dynamic load rating of 21,604 lbf and a radial static load rating of 16,074 lbf, ensuring dependable operation under significant stress.
- Optimized for Thermal Stability: The specified C3 clearance is a critical feature for applications prone to thermal expansion, maintaining optimal internal geometry and preventing seizure or excessive friction.
- Simplified Installation & Maintenance: The integrated snap ring groove allows for easy axial positioning, streamlining the assembly process and enhancing the overall rigidity of the mounted arrangement. The open seal type facilitates re-lubrication as per application requirements.
- Broad Operating Range: With a temperature range of -30°C to 120°C, this bearing is suitable for diverse environmental conditions.
6218NR/C3 Bearing Typical Application Areas
This bearing is ideally suited for a wide range of industrial machinery where high radial load capacity and secure mounting 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
