308MG
200, 300 & 6400 Series Industrial Single Row Deep Groove Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
308MG
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.64 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.015mm to 0
Width
23 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
10274 lbf
Radial static load rating
8093 lbf
Limiting speed
8.5 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
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:
$ 11.92
/ each
In Stock
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308MG Bearing Product Overview & Core Advantages
The 308MG metric ball bearing is a high-performance single row deep groove ball bearing engineered for robust radial load applications. Manufactured to ABEC 1 | ISO P0 tolerance standards, it delivers reliable operation and consistent performance. Its open design allows for versatile lubrication options, while the all-chrome steel construction ensures durability and a long service life, making it an ideal choice for general industrial machinery requiring dependable support.
308MG Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 308 | Standard bearing series number, defining the core dimensions: 40mm bore, 90mm OD, 23mm width. |
| MG | Indicates the cage material is made from malleable cast iron, offering high strength and suitability for a wide range of operating conditions. |
308MG Bearing Structural Features & Performance Benefits
- High Load Capacity: The single row deep groove raceway and robust construction enable a high radial dynamic load rating of 10,274 lbf and a radial static load rating of 8,093 lbf, providing excellent resistance to fatigue.
- Optimized for Versatility: The open seal type allows for the application of various greases or oils, giving engineers flexibility in lubrication selection based on specific speed and temperature requirements.
- Precision Operation: Manufactured to ABEC 1 precision class with a standard CN radial internal clearance, ensuring smooth running and reduced vibration in a wide array of applications.
- Durable Construction: The bearing rings, balls, and MG cage are all constructed from chrome steel, providing high hardness, wear resistance, and dimensional stability across its specified temperature range of -30°C to 120°C.
308MG Bearing Typical Application Areas
This bearing is commonly specified in:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery where reliable radial load support is paramount.
