1311 C/3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1311 C/3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
1.6 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.015mm to 0
Bore type
Cylindrical
Outside diameter
120 mm
Outside diameter tolerance
-0.015mm to 0
Width
29 mm
Width tolerance
-0.15mm to 0
Chamfer dimension
2 mm
Inner Ring Dimensions
Shoulder diameter inner ring
77.9 mm
Outer Ring Dimensions
Shoulder diameter outer ring
101.4 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
11408 lbf
Radial static load rating
4050 lbf
Limiting speed
7.5 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 67.15
/ each
In Stock
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1311 C/3 Bearing Product Overview & Core Advantages
The 1311 C/3 is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric series bearing features an open design and is constructed from high-grade chrome steel for exceptional durability. Its primary advantage lies in its ability to accommodate significant radial loads while maintaining stable operation. The optimized internal geometry and nylon cage contribute to smooth, quiet running, making it an ideal choice for demanding industrial environments where consistent performance is critical.
1311 C/3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1311 | Basic bearing designation indicating the bearing size (55mm bore, 120mm OD). |
| C | Indicates the design and internal geometry optimized for enhanced load capacity. |
| 3 | Specifies the radial internal clearance group, in this case, the standard CN clearance. |
1311 C/3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and robust construction provide superior high rigidity, enabling the bearing to handle substantial radial dynamic loads up to 11408 lbf.
- Optimized for Speed: The lightweight nylon cage ensures stable guidance of the balls at high rotational speeds, supporting a limiting speed of 7,500 rpm.
- Precision & Stability: Manufactured with tight dimensional tolerances on the bore diameter and outside diameter for precise shaft and housing fits, ensuring minimal runout and vibration.
- Standard Internal Clearance: The CN radial internal clearance is suitable for a wide range of general industrial applications, providing a balance between operational temperature and preload requirements.
1311 C/3 Bearing Typical Application Areas
This double row ball bearing is engineered for use in a variety of demanding sectors, including:
- Industrial Gearboxes and Transmissions
- Material Handling Conveyor Systems
- Electric Motors and Generators
- Agricultural Machinery
- General Industrial Machinery requiring robust and reliable bearing solutions.
