311M
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.
311M
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.5 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.015mm to 0
Width
29 mm
Width tolerance
-0.15mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
17805 lbf
Radial static load rating
15062 lbf
Limiting speed
6.3 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:
$ 27.68
/ each
In Stock
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311M Bearing Product Overview & Core Advantages
The 311M metric ball bearing is a high-performance single row deep groove ball bearing designed for robust radial load applications. Engineered with precision ABEC 1 | ISO P0 tolerance, it delivers reliable operation and consistent performance. Its open design allows for versatile lubrication options, while the all-chrome steel construction ensures excellent durability and a long service life, making it ideal for demanding industrial environments.
311M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 311 | Standard bore diameter code, indicating a 55 mm bore. |
| M | Signifies the bearing is manufactured from chrome steel. |
| (No Seal Suffix) | Indicates an open seal type, allowing for custom lubrication. |
311M Bearing Structural Features & Performance Benefits
- Robust Load Capacity: The single row deep groove raceway and high-quality construction provide a radial dynamic load rating of 17,805 lbf and a static load rating of 15,062 lbf, ensuring reliable performance under significant stress.
- Optimized for Speed: With a limiting speed of 6,300 rpm, this bearing is suitable for a wide range of high-speed applications.
- Precision Engineering: Manufactured to ABEC 1 | ISO P0 tolerance standards with a standard CN radial internal clearance, guaranteeing smooth, low-vibration, and precise operation.
- Versatile & Durable Construction: The bearing rings, balls, and cage are all made from chrome steel, offering high resistance to wear and fatigue, contributing to an extended operational lifespan.
- Broad Temperature Range: Operates effectively within a temperature range of -30°C to 120°C, making it adaptable to various environmental conditions.
311M Bearing Typical Application Areas
This 311M bearing is widely used in industrial machinery and equipment requiring reliable radial support, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Pumps and Fans
