6318 JEM
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Materials
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6318 JEM Bearing Product Overview & Core Advantages
The 6318 JEM is a single row deep groove ball bearing designed for exceptional performance in demanding industrial applications. Engineered to primarily handle radial loads, it offers a robust and reliable solution where high rotational speeds and operational stability are critical. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing ensures consistent performance and long service life. Its open design allows for versatile lubrication options, making it suitable for a wide range of operating conditions.
6318 JEM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 6318 | Basic Bearing Number | Denotes a metric, single row deep groove ball bearing with a 90mm bore, 190mm OD, and 43mm width. |
| JEM | Internal Clearance & Cage Designation | 'J' indicates a CN radial internal clearance (normal group). 'EM' signifies a solid cage, machined from brass, offering excellent strength and guidance for high-speed applications. |
6318 JEM Bearing Structural Features & Performance Benefits
Optimized Deep Groove Raceway: The geometry of the raceways is engineered for smooth operation and efficient handling of radial dynamic loads up to 32,148 lbf and radial static loads up to 24,055 lbf.
High-Speed Machined Brass Cage (EM): This robust cage design contributes significantly to the bearing's limiting speed of 3,600 rpm, providing stability and reducing friction and wear at high rotational velocities.
Premium Chrome Steel Construction: Both rings, balls, and cage are manufactured from chrome steel, ensuring high hardness, wear resistance, and durability for a long operational lifespan.
Standard Internal Clearance (CN): The CN clearance is suitable for most common operating conditions, providing an optimal balance between fit, temperature management, and running precision.
6318 JEM Bearing Typical Application Areas
The 6318 JEM bearing is a versatile component found in numerous industrial sectors, including:
- Electric Motors and Generators
- Industrial Gearboxes and Power Transmission Systems
- Pumps and Compressors
- Material Handling Equipment (conveyors, pulleys)
- Agricultural and Construction Machinery
