6218NR/C4
6200 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6218NR/C4
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
C4
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/C4 Bearing Product Overview & Core Advantages
The 6218NR/C4 is a single row deep groove ball bearing designed for robust performance in demanding industrial applications. Its core advantage lies in its ability to efficiently handle radial loads while its snap ring fitted outer ring provides secure axial location, simplifying housing design. Manufactured to ABEC 1 | ISO P0 tolerance standards and featuring a liberal C4 radial internal clearance, this bearing is engineered for reliable operation under a wide temperature range from -30°C to 120°C, making it a versatile and dependable choice for general machinery.
6218NR/C4 Bearing Model Code Explained, Specifications & Naming Convention
The model number 6218NR/C4 is decoded as follows:
- 6218: Standard designation for a single row deep groove ball bearing with a 90mm bore.
- N: Signifies a snap ring groove on the outer ring.
- R: Indicates the bearing is supplied with a snap ring fitted in the groove.
- /C4: Denotes a liberal radial internal clearance greater than normal (CN), suitable for applications with significant thermal expansion or where interference fits are used.
6218NR/C4 Bearing Structural Features & Performance Benefits
- Secure Axial Location: The integrated snap ring acts as a positive locating feature, preventing axial movement of the bearing within the housing and reducing the complexity and cost of the surrounding assembly.
- High Load Capacity: With a dynamic load rating of 21,604 lbf and a static load rating of 16,074 lbf, this bearing is built to withstand substantial radial forces in continuous operation.
- Optimized for Interference Fits & Thermal Expansion: The C4 radial clearance ensures smooth, reliable performance in applications where shaft or housing fits are tight, or where operational temperatures cause significant expansion, preventing binding and premature failure.
- Robust Construction: All key components, including rings, balls, and cage, are manufactured from high-grade chrome steel, ensuring durability, consistent performance, and a long service life.
6218NR/C4 Bearing Typical Application Areas
The 6218NR/C4 is ideally suited for a wide range of industrial machinery where secure location and reliable performance under radial loads are paramount. Key applications include:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
