1213KC3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1213KC3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
1.1 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.015mm to 0
Bore type
Taper 1:12
Outside diameter
120 mm
Outside diameter tolerance
-0.015mm to 0
Width
23 mm
Width tolerance
-0.15mm to 0
Chamfer dimension
1.5 mm
Inner Ring Dimensions
Shoulder diameter inner ring
85.1 mm
Outer Ring Dimensions
Shoulder diameter outer ring
104 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7898 lbf
Radial static load rating
3150 lbf
Limiting speed
7 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:
$ 62.12
/ each
In Stock
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Product Overview and Core Advantages
The 1213KC3 is a double row angular contact ball bearing designed for demanding industrial applications requiring high precision and reliability. 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 maintaining high rigidity due to its double-row ball construction. With a C3 radial internal clearance, it is optimized for applications with thermal expansion or heavy interference fits, ensuring stable performance under varying operational conditions.
1213KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1213 | Standard bore diameter (65 mm) and series designation. |
| K | Indicates a tapered bore with a 1:12 ratio, facilitating secure mounting on adapter sleeves. |
| C3 | Specifies a greater radial internal clearance than normal, suitable for applications with thermal gradients or interference fits. |
Structural Features and Performance Benefits
- High Rigidity and Load Capacity: The double row design provides superior stiffness and enables the bearing to support substantial radial loads (7898 lbf dynamic rating) and axial loads in both directions simultaneously.
- Optimized for Precision: Manufactured from chrome steel for both rings and balls, ensuring high durability and consistent performance. The nylon cage contributes to smooth operation and is suitable for high-speed applications.
- Enhanced Mounting and Stability: The tapered bore allows for precise axial positioning and secure fixation, reducing the risk of slippage under heavy loads. The C3 clearance accommodates thermal expansion, preventing preload issues.
- Ready-to-Use Convenience: Factory lubricated and featuring an open design, the bearing is prepared for immediate installation in various environments within its operating temperature range of -30°C to 110°C.
1213KC3 Bearing Typical Application Areas
- Electric Motors and Generators: Ideal for rotor support where high-speed operation and combined loads are prevalent.
- Industrial Gearboxes: Used in power transmission systems requiring high rigidity and precise shaft alignment.
- Material Handling Equipment: Suitable for conveyor pulleys and other machinery subjected to heavy radial loads.
- Agricultural Machinery: Applied in PTO shafts and other driveline components due to its robust construction and tapered bore for secure mounting.
