1220-M
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1220-M
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
3.7 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.02mm to 0
Bore type
Cylindrical
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
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 75.5
/ each
In Stock
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1220-M Bearing Product Overview & Core Advantages
The 1220-M is a metric double row angular contact ball bearing engineered for high-performance applications requiring robust support for combined loads. Its double row design provides exceptional rigidity and load-carrying capacity, making it suitable for arrangements where space is limited but high reliability is paramount. Manufactured from high-grade chrome steel and featuring a brass cage, this bearing is optimized for demanding operational environments.
1220-M Bearing Model Code Explained, Specifications & Naming Convention
The model designation 1220-M can be broken down as follows:
- 1220: Standard bearing series designation, indicating a 100mm bore, 180mm OD, and 34mm width.
- M: Signifies that the bearing is supplied with the "M" type internal radial clearance (corresponding to the CN clearance group in the specifications). This pre-set clearance is optimized for common mounting conditions and operational temperatures.
1220-M Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction enables the 1220-M to support significant radial loads and bidirectional axial loads simultaneously, providing stable and rigid shaft support.
- Precision & Durability: Components made from chrome steel (rings and balls) offer high wear resistance and durability. The brass cage ensures smooth operation and is suitable for high-speed applications.
- Optimized Internal Clearance: The CN standard radial internal clearance provides a versatile fit for a wide range of applications, balancing operational temperature effects and preload requirements.
- High-Speed Capability: With a limiting speed of 4,800 rpm, this bearing is capable of operating in demanding, high-velocity scenarios.
1220-M Bearing Typical Application Areas
The 1220-M double row ball bearing is ideally suited for industrial machinery and equipment requiring high rigidity and reliability, including:
- Industrial Gearboxes
- Medium-duty Pumps and Compressors
- Material Handling Conveyor Systems
- Agricultural Machinery
- General Industrial Machinery Spindles
