6318-ZJEM
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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6318-ZJEM Bearing Product Overview & Core Advantages
The 6318-ZJEM is a single row deep groove ball bearing engineered for high-performance applications requiring reliable radial load capacity and precision operation. Featuring shielded construction and manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers a robust solution for industrial machinery. Its design ensures stable operation within a wide temperature range of -30°C to 120°C, making it suitable for demanding environments. The combination of high dynamic and static load ratings with a substantial limiting speed provides exceptional value for general industrial use where durability and consistent performance are critical.
6318-ZJEM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| -Z | Shield on one side | Provides basic contaminant protection while maintaining lower friction than contact seals |
| -JEM | J-steel cage with outer ring centered, pressed steel | Offers excellent strength and guidance at high speeds, contributing to stable rotation |
6318-ZJEM Bearing Structural Features & Performance Benefits
Optimized Raceway Geometry: The deep groove raceway design enables efficient handling of radial loads and moderate axial loads in both directions, providing versatile load capacity.
Shielded Protection: The -Z shield effectively retains lubricant and excludes larger contaminants, extending service life in clean to moderately contaminated environments.
High-Speed Capability: The JEM pressed steel cage ensures precise ball guidance and reduced cage weight, enabling operation at the specified limiting speed of 3,600 rpm with minimal friction.
Precision Manufacturing: Manufactured to ABEC 1 | ISO P0 tolerance class with CN radial internal clearance, this bearing delivers consistent performance and smooth operation in general precision applications.
Material Excellence: Constructed entirely from chrome steel for rings, balls, and cage, ensuring uniform thermal expansion characteristics and excellent wear resistance.
6318-ZJEM Bearing Typical Application Areas
- Electric Motors and generators requiring reliable radial support
- Industrial Gearboxes and transmission systems
- Material Handling Equipment such as conveyor systems
- Agricultural Machinery including pumps and implements
- General Industrial Machinery where cost-effective precision is required
- Ventilation Systems and blowers operating at moderate speeds
