309MF
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.
309MF
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.88 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.015mm to 0
Width
25 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
12364 lbf
Radial static load rating
9892 lbf
Limiting speed
7.5 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:
$ 19.27
/ each
In Stock
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309MF Bearing Product Overview & Core Advantages
The 309MF is a single row deep groove ball bearing designed for exceptional performance in general industrial applications. Engineered for high radial load capacity and reliable operation, this open-type bearing offers a versatile solution for various machinery. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides consistent precision and is constructed entirely from durable chrome steel for longevity. Its robust design ensures stable operation across a wide temperature range, making it a dependable choice for engineers seeking a cost-effective and high-performance metric bearing.
309MF Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 309 | Standard bore diameter code, indicating a 45mm bore. |
| MF | Denotes a specific design with machined brass cage for enhanced strength and guidance at high speeds. |
309MF Bearing Structural Features & Performance Benefits
- Optimized Cage Design: The machined brass (MF) cage provides superior strength and stability, contributing to the bearing's high limiting speed of 7,500 rpm and smooth operation under demanding conditions.
- High Load Capacity: With a dynamic load rating of 12,364 lbf and a static load rating of 9,892 lbf, this bearing is built to handle significant radial loads in continuous operation.
- Precision Engineering: Manufactured to ABEC 1 (ISO P0) tolerance class with a standard CN radial internal clearance, ensuring reliable performance and interchangeability.
- Material Integrity: All critical components—rings, balls, and cage—are made from chrome steel, offering excellent hardness, wear resistance, and dimensional stability.
- Application Flexibility: The open seal type allows for custom lubrication schemes, while the wide operating temperature range of -30°C to 120°C ensures performance in diverse environments.
309MF Bearing Typical Application Areas
This bearing is ideally suited for a wide range of industrial machinery, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Pumps and Fans
- General Industrial Machinery requiring robust radial load support
