6318-2ZJEM
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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6318-2ZJEM Bearing Product Overview & Core Advantages
The 6318-2ZJEM is a single row deep groove ball bearing designed for exceptional reliability in demanding applications. As a shielded bearing, it offers robust protection against contaminant ingress while maintaining high operational efficiency. Its construction from high-grade chrome steel ensures superior durability and a long service life. This bearing is engineered to handle significant radial loads and is characterized by its high limiting speed and precise ABEC 1 | ISO P0 tolerance class, making it an ideal, cost-effective solution for a wide range of industrial machinery requiring consistent performance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6318 | Basic bearing series, indicating a single row deep groove ball bearing with a 90 mm bore, 190 mm OD, and 43 mm width. |
| 2Z | Bearing is equipped with shielded seals on both sides. This provides effective protection against solid contaminants while minimizing friction. |
| JEM | This suffix combination indicates specific internal design and manufacturing standards, often relating to optimized internal geometry and radial internal clearance (CN) for reliable performance under standard operating conditions. |
6318-2ZJEM Bearing Structural Features & Performance Benefits
- Robust Shielded Design: The 2Z shields on both sides effectively protect the rolling elements and raceways from dust and debris, enhancing bearing life in contaminated environments without the high torque of contact seals.
- High Load Capacity: Manufactured from high-quality chrome steel for both rings and balls, this bearing delivers a high radial dynamic load rating of 32,148 lbf and a radial static load rating of 24,055 lbf, ensuring reliable operation under significant stress.
- Optimized for High-Speed Operation: The single row deep groove design and precision chrome steel cage contribute to a high limiting speed of 3,600 rpm, making it suitable for applications requiring rapid rotation.
- Standard Precision & Clearance: With an ABEC 1 | ISO P0 tolerance class and standard CN radial internal clearance, it offers consistent, high-quality performance for general industrial use.
- Versatile Temperature Range: The bearing operates effectively within a temperature range of -30°C to 120°C, accommodating various operational environments.
6318-2ZJEM Bearing Typical Application Areas
The 6318-2ZJEM is a versatile component widely used across multiple industries due to its balanced performance and protective features. Common applications include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Ventilation and Fan Systems
- General Industrial Machinery requiring reliable, shielded ball bearings
