1213 KC3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1213 KC3
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:
$ 72.01
/ each
In Stock
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1213 KC3 Bearing Product Overview & Core Advantages
The 1213 KC3 is a metric double row angular contact ball bearing engineered for applications requiring high radial load capacity and precise operation. Featuring a 1:12 tapered bore for secure shaft mounting, this bearing delivers exceptional rigidity and stable performance under demanding conditions. Its double row ball construction enables it to handle significant combined loads while maintaining accuracy. Pre-lubricated and manufactured with chrome steel components and a nylon cage, it offers reliable service in a standard temperature range of -30° to 110°C, making it a robust and durable choice for industrial machinery.
1213 KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1213 | Standard bearing designation indicating metric dimensions: 65mm bore, 120mm OD, 23mm width. |
| K | Denotes a tapered bore with a 1:12 ratio for precise interference fit on tapered shafts. |
| C3 | Specifies a greater radial internal clearance than normal (C0), suitable for applications with thermal expansion or where a tight fit is used. |
1213 KC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides superior radial stiffness and can accommodate substantial radial loads (dynamic: 7898 lbf, static: 3150 lbf), ensuring stable operation in heavy-duty applications.
- Precision Tapered Bore: The 1:12 taper bore allows for a secure, interference fit on matching shafts, minimizing slippage and enhancing rotational accuracy and system rigidity.
- Optimized Cage & Lubrication: The nylon cage contributes to smooth operation, reduced friction, and is suitable for the bearing's limiting speed of 7,000 rpm. The unit comes pre-lubricated for immediate use and long-term reliability.
- Controlled Internal Clearance: The C3 clearance group is selected for applications involving thermal gradients or tight fits, preventing preload and ensuring consistent performance.
1213 KC3 Bearing Typical Application Areas
This bearing is ideally suited for:
- Industrial Gearboxes and Transmissions
- Agricultural Machinery (e.g., tractor PTO shafts)
- Material Handling Equipment (conveyor pulleys)
- Vibrating Screens and Machinery
- Pump and Compressor Systems
