6218-2Z GJN/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6218-2Z GJN/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2150 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
160 mm
Outside diameter tolerance
-0.025mm to 0
Width
30 mm
Width tolerance
-0.200mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
21604 lbf
Radial static load rating
16074 lbf
Limiting speed
4 X 1000 rpm
Lubrication
None
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 56.45
/ each
In Stock
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6218-2Z GJN/C3 Bearing Product Overview & Core Advantages
The 6218-2Z GJN/C3 is a single row deep groove ball bearing engineered for high-performance industrial applications. This shielded bearing offers reliable operation and is designed to primarily accommodate radial loads. Its key advantages include robust construction for demanding environments, a generous C3 radial internal clearance suitable for applications with thermal expansion or interference fits, and compliance with ABEC 1 | ISO P0 tolerance standards for consistent quality. The combination of chrome steel components and effective shielding makes it a durable and maintenance-friendly solution.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6218 | Basic bearing series: Deep Groove Ball Bearing with 90mm bore, 160mm OD, 30mm width. |
| -2Z | Bearing with shielded (non-contact) on both sides. Protects against contaminants while allowing high speeds. |
| GJN | Designates a specific polyamide cage (often referred to by this manufacturer-specific code), contributing to smooth operation and low friction. |
| /C3 | Specifies a greater than normal radial internal clearance. Ideal for applications with shaft expansion or where elevated operational temperatures are expected. |
6218-2Z GJN/C3 Bearing Structural Features & Performance Benefits
- Robust Load Capacity: Built with high-grade chrome steel rings and balls, this bearing delivers a high radial dynamic load rating of 21,604 lbf and a static load rating of 16,074 lbf, ensuring reliable performance under significant stress.
- Optimized Cage Design: The GJN polyamide cage offers excellent strength-to-weight ratio, reduces friction, and is suitable for high-speed operation, contributing to the bearing's limiting speed of 4,000 rpm.
- Enhanced Operational Suitability: The C3 clearance provides operational flexibility in scenarios involving thermal gradients or press-fits, preventing premature failure due to excessive preload.
- Contamination Protection: The non-contact shields (2Z) effectively seal the bearing from dust and other particulates, extending service life and reducing maintenance needs in harsh environments.
6218-2Z GJN/C3 Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Industrial Electric Motors and Generators
- Material Handling Equipment such as conveyor systems
- Agricultural Machinery and Gearboxes
- Pumps and Fans
- General Industrial Machinery requiring a reliable, shielded radial bearing
