1309KJC3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1309KJC3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.96 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Taper 1:12
Outside diameter
100 mm
Outside diameter tolerance
-0.015mm to 0
Width
25 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.5 mm
Inner Ring Dimensions
Shoulder diameter inner ring
67.71 mm
Outer Ring Dimensions
Shoulder diameter outer ring
87.8 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8775 lbf
Radial static load rating
3015 lbf
Limiting speed
8.5 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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1309KJC3 Bearing Product Overview & Core Advantages
The 1309KJC3 is a double row angular contact ball bearing designed for exceptional performance in demanding applications. This precision bearing features a tapered bore (1:12) and is pre-lubricated for immediate use. Its primary advantage lies in its ability to handle significant combined loads—both radial and axial—while offering high rigidity due to its double-row construction. With a generous C3 radial internal clearance, it is ideally suited for applications where thermal expansion must be accommodated, ensuring reliable operation and long service life in industrial machinery.
1309KJC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1309 | Standard bearing series designation, indicating the core dimensions (45mm bore, 100mm OD). |
| K | Signifies a tapered bore with a 1:12 ratio, allowing for precise interference fit on adapter sleeves or withdrawal sleeves. |
| J | Indicates a steel cage design, providing robust guidance for the balls and contributing to the bearing's high dynamic load capacity. |
| C3 | Denotes a greater than normal radial internal clearance. This is critical for applications with high operating temperatures or where shaft and housing fits may cause clearance reduction. |
1309KJC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides a rigid support system, enabling the bearing to withstand substantial combined radial and axial loads simultaneously. This makes it superior to single-row bearings in applications with complex loading conditions.
- Optimized for Precision: Manufactured from chrome steel for both rings and balls, the bearing ensures high durability and consistent performance. The open seal type allows for easy re-lubrication in service, extending operational life.
- Adaptable Mounting: The tapered bore (K-designation) facilitates a secure and precise fit on a tapered shaft seat using an adapter sleeve, simplifying installation and ensuring excellent rotational accuracy.
- Operational Reliability: The specified C3 clearance accommodates thermal expansion and interference fits, preventing operational issues due to excessive preload, which is vital for maintaining performance in variable temperature environments.
1309KJC3 Bearing Typical Application Areas
This bearing is engineered for robust performance in a variety of industrial sectors. Key applications include:
- Electric Motors & Generators
- Gearboxes and Transmission Systems
- Industrial Fans and Blowers
- Agricultural Machinery
- Material Handling Equipment
