1212KJC3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1212KJC3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.9 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.015mm to 0
Bore type
Taper 1:12
Outside diameter
110 mm
Outside diameter tolerance
-0.015mm to 0
Width
22 mm
Width tolerance
-0.15mm to 0
Chamfer dimension
1.5 mm
Inner Ring Dimensions
Shoulder diameter inner ring
78 mm
Outer Ring Dimensions
Shoulder diameter outer ring
95.6 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7020 lbf
Radial static load rating
2745 lbf
Limiting speed
8 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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1212KJC3 Bearing Product Overview & Core Advantages
The 1212KJC3 is a metric double row angular contact ball bearing featuring a tapered bore design (1:12 ratio). Engineered for applications requiring high rigidity and precise operation, this bearing is designed to accommodate combined loads (radial and axial) simultaneously. Its open construction allows for optimal lubrication flow, contributing to stable performance in demanding industrial environments. Manufactured from high-grade chrome steel, it offers excellent durability and is pre-lubricated for immediate installation and reliable operation.
1212KJC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1212 | Bore diameter: 60 mm, Outside diameter: 110 mm, Width: 22 mm |
| K | Tapered bore with a 1:12 ratio |
| JC3 | Optimized internal geometry and a greater radial internal clearance (C3) than normal |
1212KJC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior rigidity and enables the bearing to handle significant combined radial and axial loads, making it suitable for applications with complex loading conditions.
- Precision Tapered Bore: The 1:12 tapered bore allows for precise bearing mounting and secure positioning on a tapered shaft adapter or withdrawal sleeve, ensuring minimal runout and high rotational accuracy.
- Optimized Internal Clearance: The C3 radial internal clearance is larger than standard, making it ideal for applications where thermal expansion of the shaft or housing is a factor, preventing preload and ensuring smooth operation.
- Robust Material Construction: Components made from chrome steel (rings, balls) and a steel cage provide high strength, wear resistance, and reliable performance under the specified temperature range of -30°C to 110°C.
1212KJC3 Bearing Typical Application Areas
This bearing is commonly specified in industrial machinery requiring robust performance and precise mounting. Typical applications include:
- Industrial Gearboxes and Transmissions
- Vibrating Screens and Conveyors
- Agricultural Machinery
- Material Handling Equipment
- Pump and Compressor Systems
