6218 M4/C4
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6218 M4/C4
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2150 g
Tolerance class
ABEC 1 | ISO 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
-0.200mm to 0
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
Machined metal
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6218 M4/C4 Bearing Product Overview & Core Advantages
The 6218 M4/C4 is a single row deep groove ball bearing engineered for high-performance industrial applications. This metric bearing is characterized by its robust construction and open design, allowing for versatile lubrication options. Its primary advantage lies in its ability to efficiently handle radial loads while offering reliable operation. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides consistent performance and is an excellent choice for applications requiring a balance of precision, durability, and cost-effectiveness.
6218 M4/C4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| M4 | Machined Metal Cage | Indicates a high-strength, machined metal cage for enhanced stability and suitability for high-speed applications. |
| /C4 | Radial Internal Clearance Group C4 | Specifies a greater than normal radial internal clearance, making it ideal for applications with significant thermal expansion or where interference fits are used. |
6218 M4/C4 Bearing Structural Features & Performance Benefits
- 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 loads in demanding environments.
- Optimized High-Speed Performance: The combination of the machined metal cage (M4) and the open seal type contributes to a high limiting speed of 4,000 rpm, ensuring stable operation at elevated rotational velocities.
- Thermal & Fit Adaptability: The C4 radial internal clearance accommodates differential thermal expansion between the shaft and housing, preventing preload and potential seizure in high-temperature or tight-fit scenarios.
- Durable Material Construction: Both the rings and balls are made from chrome steel, providing high hardness, wear resistance, and a long operational lifespan under standard industrial conditions.
6218 M4/C4 Bearing Typical Application Areas
This 6218 M4/C4 bearing is ideally suited for a wide range of industrial machinery, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Pumps and Compressors
- Agricultural Machinery
