6818
6800 Series Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6818
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
279 g
Tolerance class
ABEC-1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.015mm to 0
Width
13 mm
Width tolerance
-0.200mm to 0
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
4118 lbf
Radial static load rating
4388 lbf
Limiting speed
6.2 X 1000 rpm
Lubrication
Required
Radial internal clearance
C0
Radial internal clearance
0.012mm to 0.036mm
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 31.36
/ each
In Stock
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6818 Bearing Product Overview & Core Advantages
The 6818 metric ball bearing is a single row deep groove ball bearing engineered for high-performance radial load applications. Its open design and precision construction make it an ideal choice for scenarios demanding reliable operation and consistent performance. Manufactured with chrome steel rings and balls and a stainless steel cage, this bearing offers excellent durability and corrosion resistance. With an ABEC-1 tolerance class and standard C0 radial internal clearance, it provides a cost-effective solution for general industrial applications requiring dependable rotational accuracy and high limiting speeds.
6818 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 68 | Series designation indicating a deep groove ball bearing with specific dimensional proportions. |
| 18 | Bore diameter code: 18 x 5 = 90 mm bore. |
| (No Suffix) | Indicates an open (unsealed) bearing, allowing for optimal lubrication customization but requiring external sealing in contaminated environments. |
6818 Bearing Structural Features & Performance Benefits
- Optimized Radial Load Capacity: The single row deep groove raceway geometry is specifically designed to handle significant radial dynamic loads (4118 lbf) and radial static loads (4388 lbf) efficiently.
- High-Speed Capability: The combination of a lightweight, durable stainless steel cage and precision-ground components enables a high limiting speed of 6,200 rpm, making it suitable for demanding rotational applications.
- Precision and Stability: Manufactured to ABEC-1 precision tolerances with a standard C0 radial internal clearance (0.012mm to 0.036mm), ensuring smooth operation, reduced vibration, and consistent performance.
- Robust Material Construction: Components made from chrome steel (rings, balls) provide high hardness and wear resistance, while the stainless steel cage enhances corrosion resistance and cage integrity.
- Flexible Lubrication: The open seal type allows for the use of specialized lubricants tailored to specific operational needs, including high-temperature or extreme-condition greases.
6818 Bearing Typical Application Areas
This 6818 bearing is widely used in various industrial sectors due to its robust design and reliable performance. Key applications include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery
- Pumps and Fans
- General machinery requiring a reliable, standard precision deep groove ball bearing.
