1216KC3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1216KC3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
1.6 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.015mm to 0
Bore type
Taper 1:12
Outside diameter
140 mm
Outside diameter tolerance
-0.018mm to 0
Width
26 mm
Width tolerance
-0.15mm to 0
Chamfer dimension
2 mm
Inner Ring Dimensions
Shoulder diameter inner ring
102 mm
Outer Ring Dimensions
Shoulder diameter outer ring
122.6 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8932 lbf
Radial static load rating
3825 lbf
Limiting speed
6 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
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In Stock
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1216KC3 Bearing Product Overview & Core Advantages
The 1216KC3 is a double row angular contact ball bearing designed for demanding applications requiring high rigidity and reliable performance. This precision bearing features a tapered bore (1:12) for secure mounting on adapter sleeves or withdrawal sleeves, ensuring precise shaft positioning. Its double row design enables it to accommodate significant combined loads—both radial and axial forces—simultaneously. Manufactured with chrome steel rings and balls, and a lightweight nylon cage, it is optimized for high-speed operation and offers a wide operating temperature range, making it a robust solution for industrial machinery.
1216KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1216 | Standard bearing series designation, indicating the bearing dimensions: 80mm bore, 140mm OD, 26mm width. |
| K | Denotes a tapered bore with a 1:12 ratio. |
| C3 | Specifies a greater than normal radial internal clearance, suitable for applications with thermal expansion or where interference fits are used. |
1216KC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement provides superior stiffness and enables the bearing to handle substantial combined radial and axial loads in both directions, enhancing operational stability.
- High-Speed Performance: The lightweight nylon cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 6,000 rpm, making it an excellent high-speed bearing.
- Tapered Bore for Secure Mounting: The K-designation tapered bore allows for precise axial positioning and a tight, secure fit on the shaft when used with appropriate adapter sleeves, preventing creep under load.
- Optimized Internal Clearance: The C3 radial internal clearance is engineered to accommodate thermal expansion in the shaft or housing, ensuring consistent performance and preventing preload under operating conditions.
1216KC3 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring high precision, speed, and rigidity. Key sectors and machinery include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmission Systems
- Pumps and Compressors
- Material Handling Equipment
- Vibrating Screens and other machinery with dynamic loads
