6318-2Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6318-2Z Bearing Product Overview & Core Advantages
The 6318-2Z is a single row deep groove ball bearing designed for exceptional performance in demanding applications. Engineered with metric dimensions and manufactured to P6 tolerance class, this bearing delivers high precision and reliable operation. Its core strength lies in its ability to handle primarily radial loads efficiently, while its optimized internal geometry also accommodates moderate axial loads in both directions. The inclusion of integral shields (2Z) and factory-applied grease lubrication makes it a robust, ready-to-install, and long-lasting solution, reducing maintenance requirements and ensuring operational integrity.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6318 | Basic bearing designation. Indicates a single row deep groove ball bearing series with a 90 mm bore diameter and standard dimensions. |
| -2Z | Signifies the bearing is equipped with non-contact steel shields on both sides. This provides effective protection against contamination from solid particles while minimizing friction, contributing to a high limiting speed. |
6318-2Z Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The single row deep groove raceway and high-quality chrome steel construction provide a high radial dynamic load rating of 33,946 lbf and a radial static load rating of 24,279 lbf, ensuring stable performance under significant stress.
- Optimized for Speed: The combination of a low-friction stainless steel cage and non-contact shields allows for a high limiting speed of 3,800 rpm, making it suitable for various high-speed applications.
- Sealed & Pre-Lubricated for Longevity: The 2Z shields effectively retain the factory-applied grease and exclude contaminants. This creates a maintenance-free system ideal for applications where re-lubrication is difficult, operating reliably within a temperature range of -30°C to 120°C.
- Precision Engineering: Manufactured to P6 tolerance class with a standard CN radial internal clearance, this bearing ensures precise running accuracy, reduced vibration, and consistent performance in precision machinery.
6318-2Z Bearing Typical Application Areas
The 6318-2Z is a versatile component widely used across multiple industries due to its robust construction and sealed design. Key application areas include:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring reliable, sealed bearing units.
