6218 NR
6200 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6218 NR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2.27 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
160 mm
Outside diameter tolerance
-0.025mm to 0
Width
30 mm
Width tolerance
-0.2mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Outside diameter of snap ring
169.7 mm
Width of snap ring
2.82 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
22706 lbf
Radial static load rating
16523 lbf
Limiting speed
5.3 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 91.61
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6218 NR Bearing Product Overview & Core Advantages
The 6218 NR is a single row deep groove ball bearing designed for exceptional radial load capacity and reliable operation. Its open design facilitates high-speed performance, while the integral snap ring on the outer ring provides a secure axial locating feature, simplifying housing design and assembly. Manufactured from high-grade chrome steel and featuring a stainless steel cage, this bearing offers robust performance, making it a versatile and dependable choice for a wide range of industrial applications demanding precision and durability.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6218 | Standard bearing series designation, indicating a medium width series with a 90mm bore. |
| NR | Signifies that the bearing is fitted with a snap ring (retaining ring) on its outer ring for axial location. |
6218 NR Bearing Structural Features & Performance Benefits
- High Radial Load Capacity: The deep groove raceway and single row construction are optimized to support high radial dynamic and static loads (22,706 lbf and 16,523 lbf respectively), ensuring long service life under demanding conditions.
- Snap Ring Locating Feature: The integrated snap ring eliminates the need for a shoulder in the housing, reducing machining costs and complexity. This feature provides secure axial positioning, preventing creep under load.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 5,300 rpm, making it suitable for applications requiring rapid rotation.
- Precision & Rigidity: Manufactured to P0 tolerance class with a CN radial internal clearance, this bearing offers consistent performance and running accuracy for smooth operation.
- Material Integrity: Components made from chrome steel provide high hardness and wear resistance, while the stainless steel cage offers corrosion resistance and strength.
6218 NR Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- General Industrial Machinery requiring a locating bearing solution.
