1216 K/C3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1216 K/C3
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
No drawings available at the moment, will be launched soon
Price:
$ 102.24
/ each
In Stock
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1216 K/C3 Bearing Product Overview & Core Advantages
The 1216 K/C3 is a metric double row angular contact ball bearing designed for demanding applications requiring high rigidity and reliable performance under combined radial and axial loads. Its open design and C3 radial internal clearance make it suitable for operational conditions involving thermal expansion or heavy loads. Manufactured from high-grade chrome steel and featuring a lightweight nylon cage, this bearing offers a robust solution for industrial machinery, ensuring high precision and operational stability.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1216 | Standard bearing series designation, indicating core dimensions (80mm bore, 140mm OD). |
| K | Indicates a tapered bore with a 1:12 ratio, facilitating precise mounting and dismounting on adapter sleeves. |
| C3 | Specifies a greater than normal radial internal clearance, ideal for applications with significant thermal gradients or heavy interference fits. |
1216 K/C3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior rigidity and enables the bearing to handle significant combined radial and axial loads simultaneously, ensuring stable operation in demanding conditions.
- Optimized for Precision Mounting: The tapered bore (1:12) allows for precise axial positioning and secure clamping on a shaft using an adapter sleeve, which is critical for achieving optimal running accuracy.
- Enhanced Operational Range: The specified C3 clearance accommodates thermal expansion from high-speed operation or heavy loads, preventing premature failure due to excessive preload.
- Lightweight & Efficient: The nylon cage reduces centrifugal forces, contributes to lower operating temperatures, and supports smooth operation at the specified limiting speed of 6000 rpm.
- Material Integrity: Components made from chrome steel provide excellent wear resistance and durability, contributing to a long service life.
1216 K/C3 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring robust performance and high reliability, including:
- Industrial Gearboxes
- Vibrating Screens and Conveyors
- Agricultural Machinery
- Electric Motors and Pumps
- Heavy-duty Material Handling Equipment
