1309KC3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1309KC3
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
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 40.49
/ each
In Stock
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1309KC3 Bearing Product Overview & Core Advantages
The 1309KC3 is a double row angular contact ball bearing designed for demanding industrial applications requiring high load capacity and operational stability. This precision bearing features a tapered bore (1:12) and is pre-lubricated for immediate use. Its core advantage lies in its ability to efficiently support substantial combined loads (radial and axial) simultaneously, making it an ideal choice for applications where high rigidity and reliable performance are critical. With a C3 radial internal clearance, it is particularly suited for applications with thermal expansion considerations.
1309KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1309 | Standard bearing series designation, indicating the bearing dimensions (45mm bore, 100mm OD, 25mm width). |
| K | Indicates a tapered bore with a 1:12 ratio, facilitating precise mounting and dismounting on adapter sleeves or withdrawal sleeves. |
| C3 | Specifies a greater than normal radial internal clearance. This is essential for applications where thermal expansion of the shaft or housing is expected, preventing preload and potential bearing failure. |
1309KC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball construction provides superior stiffness and enables the bearing to handle significant radial dynamic loads (8775 lbf) and radial static loads (3015 lbf).
- Tapered Bore Design: The 1:12 tapered bore allows for precise axial positioning and secure interference fit on the shaft, ensuring minimal slippage and vibration under heavy loads.
- Optimized for Thermal Conditions: The specified C3 clearance accommodates differential thermal expansion between the bearing and its surrounding components, maintaining optimal performance across the operating temperature range (-30° to 110 °C).
- Ready-to-Install: The bearing comes pre-lubricated, simplifying the installation process and providing immediate protection against wear.
- Lightweight & Durable Cage: The nylon cage offers a favorable strength-to-weight ratio, contributing to smooth operation at the limiting speed of 8,500 rpm and reducing centrifugal forces.
1309KC3 Bearing Typical Application Areas
This bearing is engineered for robust machinery and systems, including:
- Industrial Gearboxes and power transmission systems.
- Vibrating Screens and other material handling equipment.
- Agricultural Machinery such as tractor transmissions and harvesters.
- Electric Motors and Pumps requiring high load support.
- Paper & Steel Mill Machinery where heavy loads and thermal effects are common.
