309M
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.
309M
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:
$ 19.8
/ each
In Stock
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309M Bearing Product Overview & Core Advantages
The 309M metric ball bearing is a high-performance single row deep groove ball bearing designed for robust radial load applications. Manufactured to ABEC 1 (ISO P0) tolerance standards, it offers reliable operation and consistent performance. Its open design allows for versatile lubrication options, making it suitable for a wide range of industrial machinery where high reliability is paramount. The bearing is constructed entirely from chrome steel, ensuring excellent durability and a long service life.
309M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 309 | Standard bearing series number, defining the basic dimensions (45mm bore, 100mm OD, 25mm width). |
| M | Signifies a medium internal clearance (CN group), which is the standard and most common clearance for general applications. |
309M Bearing Structural Features & Performance Benefits
- Optimized Radial Load Capacity: The single row deep groove construction is engineered to support high radial dynamic load ratings of 12,364 lbf and static load ratings of 9,892 lbf, providing stable support for rotating shafts.
- Precision & Reliability: Built to ABEC 1 (ISO P0) tolerance class, this bearing ensures smooth, low-vibration operation, which is critical for the consistent performance of industrial equipment.
- High-Speed Capability: With a limiting speed of 7,500 rpm, it is well-suited for applications requiring rapid rotation. The chrome steel cage contributes to its stability at high speeds.
- Versatile Application Range: The open seal type and wide operating temperature range (-30°C to 120°C) allow for use in diverse environments with appropriate lubrication.
- Material Integrity: All core components—rings, balls, and cage—are made from chrome steel, offering high hardness, wear resistance, and a long operational lifespan.
309M Bearing Typical Application Areas
This 309M bearing is a versatile component found in numerous industrial sectors, including:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery requiring reliable, medium-duty radial support.
