1222-KM
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1222-KM
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
5.15 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.02mm to 0
Bore type
Taper 1:12
Outside diameter
200 mm
Outside diameter tolerance
-0.03mm to 0
Width
38 mm
Width tolerance
-0.2mm to 0
Chamfer dimension
2.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
140.35 mm
Outer Ring Dimensions
Shoulder diameter outer ring
173.7 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
19890 lbf
Radial static load rating
8775 lbf
Limiting speed
4.3 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:
$ 418.32
/ each
In Stock
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1222-KM Bearing Product Overview & Core Advantages
The 1222-KM is a double row angular contact ball bearing engineered for demanding applications requiring high rigidity and precision. This metric bearing features a tapered bore (1:12) for secure shaft mounting and is designed to accommodate significant radial loads. Its double row construction provides a compact and robust solution, offering superior stiffness and stability. Pre-lubricated for immediate use, it delivers reliable performance in high-precision and high-reliability environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1222 | Standard bearing designation indicating bore diameter (110 mm), outside diameter (200 mm), and width (38 mm). |
| K | Denotes a tapered bore with a 1:12 ratio, facilitating precise interference fits on adapter sleeves or withdrawal sleeves. |
| M | Indicates the bearing is supplied with brass cage (machined), which offers high strength and is suitable for high-speed operation and demanding conditions. |
1222-KM Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing design provides exceptional stiffness, enabling it to handle substantial radial dynamic loads (19,890 lbf) and radial static loads (8,775 lbf) effectively, making it ideal for applications with heavy and combined loads.
- Precision Tapered Bore: The 1:12 tapered bore ensures a secure and concentric fit on the shaft, minimizing slippage and maintaining positional accuracy under high torque and vibration.
- Optimized for Performance: The machined brass cage ensures stable ball guidance, contributing to smooth operation and enhanced limiting speed (4,300 rpm). The standard CN radial internal clearance is suited for a wide range of operating conditions.
- Ready-to-Install & Durable: The bearing is pre-lubricated and features an open design, allowing for easy re-lubrication. Manufactured from chrome steel for both rings and balls, it ensures long service life and consistent performance within a temperature range of -30°C to 110°C.
1222-KM Bearing Typical Application Areas
This bearing is well-suited for industrial machinery requiring robust support and precision, including:
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Mining and Construction Equipment
