309MFF
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.
309MFF
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:
$ 19.41
/ each
In Stock
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309MFF Bearing Product Overview & Core Advantages
The 309MFF is a single row deep groove ball bearing engineered for radial load applications requiring reliable performance. This open-type bearing features a CN radial internal clearance and is manufactured to ABEC 1 | ISO P0 tolerance standards, ensuring consistent operation and interchangeability. Its robust construction using chrome steel for all core components provides excellent durability. With a high limiting speed of 7,500 rpm and substantial dynamic and static load ratings, it delivers dependable service in a wide range of industrial environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 309 | Standard bearing series designation, indicating specific bearing dimensions (45mm bore, 100mm OD, 25mm width). |
| M | Designates the brass cage material (Chrome Steel per specification), providing strength and stability at high speeds. |
| FF | Indicates a specific seal type configuration. In this case, Open (no seal), allowing for custom lubrication or operation in clean environments. |
309MFF Bearing Structural Features & Performance Benefits
- Optimized Radial Load Capacity: The single row deep groove raceway geometry is precision-engineered to efficiently support high radial loads (12,364 lbf dynamic / 9,892 lbf static), making it ideal for applications with significant radial forces.
- High-Speed Capability: The combination of a chrome steel cage and CN clearance enables stable operation at limiting speeds up to 7,500 rpm, reducing vibration and heat generation.
- Precision & Interchangeability: Manufactured to ABEC 1 (ISO P0) tolerance class, this bearing ensures smooth running and ease of replacement, minimizing downtime.
- Material Integrity: Constructed entirely from chrome steel (rings, balls, cage), it offers high hardness, wear resistance, and a long operational lifespan under demanding conditions.
- Application Flexibility: The open design allows for the use of specialized lubricants tailored to specific operational needs, such as extreme temperatures (-30°C to 120°C).
309MFF Bearing Typical Application Areas
This versatile ball bearing is commonly specified in:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial support
