6218 JEM
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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6218 JEM Bearing Product Overview & Core Advantages
The 6218 JEM is a single row deep groove ball bearing engineered for high-performance radial load applications. Characterized by its open design and manufactured to ABEC 1 | ISO P0 precision standards, this bearing offers a robust and reliable solution for a wide range of industrial machinery. Its high radial dynamic and static load ratings ensure dependable operation under significant stress, while the standard CN radial internal clearance provides optimal performance for most general applications.
6218 JEM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6218 | Standard designation for a single row deep groove ball bearing with a 90mm bore and 160mm outside diameter. |
| J | Indicates a stamped steel cage design, offering a good balance of strength, speed capability, and cost-effectiveness. |
| EM | Signifies optimized internal design and increased radial load capacity compared to a standard 6218 bearing. |
6218 JEM Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The EM suffix indicates an enhanced internal design with a larger ball complement and optimized raceway geometry. This directly translates to a significantly higher radial dynamic load rating, making it suitable for more demanding applications.
Robust Cage Design: The stamped steel cage (J) ensures reliable ball guidance and is capable of handling the limiting speed of 4,000 rpm, providing stability and longevity in high-speed operations.
Precision Manufacturing: Manufactured to ABEC 1 | ISO P0 tolerance class, this bearing guarantees consistent dimensional accuracy and smooth, low-vibration running, which is critical for the overall efficiency of the system.
Material Integrity: Constructed entirely from chrome steel for rings, balls, and cage, the 6218 JEM offers excellent hardness, wear resistance, and a long operational life under standard temperature conditions (-30°C to 120°C).
6218 JEM Bearing Typical Application Areas
The 6218 JEM is a versatile component ideal for a broad spectrum of industrial machinery requiring robust radial load support. Common applications include:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- General Industrial Machinery (Pumps, Fans)
