1220 KC3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1220 KC3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
3.6 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.02mm to 0
Bore type
Taper 1:12
Outside diameter
180 mm
Outside diameter tolerance
-0.025mm to 0
Width
34 mm
Width tolerance
-0.2mm to 0
Chamfer dimension
2.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
127 mm
Outer Ring Dimensions
Shoulder diameter outer ring
155.8 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
15502 lbf
Radial static load rating
6750 lbf
Limiting speed
4.8 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:
$ 240.98
/ each
In Stock
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1220 KC3 Bearing Product Overview & Core Advantages
The 1220 KC3 is a double row angular contact ball bearing designed for applications requiring high radial load capacity and precise operation. Featuring a tapered bore (1:12) for secure shaft mounting, this metric bearing offers excellent rigidity and stability. Its open design, combined with a C3 radial internal clearance, makes it suitable for operational conditions where thermal expansion is a factor. Manufactured from high-grade chrome steel with a nylon cage, it delivers reliable performance and is pre-lubricated for immediate use.
1220 KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1220 | Standard bearing designation indicating size series and bore diameter. |
| K | Denotes a tapered bore with a 1:12 ratio for precise mounting on adapter sleeves or withdrawal sleeves. |
| C3 | Specifies a greater than normal radial internal clearance, ideal for applications with high operating temperatures or where interference fits are used. |
1220 KC3 Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The double row ball bearing construction provides superior radial load support and high rigidity, making it stable under heavy loads.
- Precision Tapered Bore: The 1:12 tapered bore ensures a tight, secure fit on the shaft, minimizing slippage and maintaining alignment for precise operation.
- Optimized for Thermal Conditions: The C3 clearance accommodates thermal expansion during operation, preventing binding and ensuring consistent performance.
- High-Speed Capability: The lightweight nylon cage reduces centrifugal forces, contributing to a high limiting speed of 4,800 rpm.
- Durable Material Construction: Components made from chrome steel offer high wear resistance and durability, while the cage material ensures smooth operation.
- Pre-Lubricated & Ready for Use: The bearing comes lubricated, reducing initial setup time and providing immediate protection.
1220 KC3 Bearing Typical Application Areas
The 1220 KC3 is engineered for demanding industrial environments. Key applications include:
- Industrial Gearboxes and Transmissions
- Material Handling Conveyor Systems
- Agricultural Machinery
- Vibrating Screens and Mining Equipment (where C3 clearance is beneficial)
- Pump and Fan Systems
