1220 K
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1220 K
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
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
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:
$ 133.4
/ each
In Stock
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1220 K Bearing Product Overview & Core Advantages
The 1220 K is a metric double row angular contact ball bearing designed for demanding applications requiring high precision and reliability. This open-type bearing features a nylon cage and is pre-lubricated for immediate operation. Its double row design provides exceptional rigidity and enables it to accommodate significant combined loads (radial and axial) simultaneously. With a high limiting speed and precise dimensional tolerances, the 1220 K is an ideal solution for high-performance machinery.
1220 K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1220 | Standard bore diameter code indicating a 100 mm bore. |
| K | Denotes a tapered bore (conicity 1:12). |
1220 K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior stiffness, making it capable of handling high radial dynamic loads of 15,502 lbf and radial static loads of 6,750 lbf, as well as combined loads.
- Optimized for Speed: The lightweight nylon cage reduces centrifugal forces, contributing to a high limiting speed of 4,800 rpm, which is critical for high-speed applications.
- Precision & Stability: Manufactured from chrome steel with tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise fit and stable operation.
- Convenient Mounting: The tapered bore (K-designation) allows for precise axial positioning and secure mounting on an adapter or withdrawal sleeve.
1220 K Bearing Typical Application Areas
The 1220 K double row angular contact ball bearing is widely used in various industrial sectors, including:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
