1208 ETN9/C3
1200 Series Self Aligning Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
1208 ETN9/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.42 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Cylindrical
Outside diameter
80 mm
Outside diameter tolerance
-0.013mm to 0
Width
18 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
53.85 mm
Outer Ring Dimensions
Shoulder diameter outer ring
67.5 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4478 lbf
Radial static load rating
1564 lbf
Limiting speed
11 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:
$ 28.52
/ each
In Stock
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1208 ETN9/C3 Bearing Product Overview & Core Advantages
The 1208 ETN9/C3 is a double row angular contact ball bearing engineered for applications requiring high load capacity and robust performance. This precision bearing is designed to accommodate significant combined loads, including radial forces and bidirectional axial loads, within a compact design envelope. Its open construction, optimized internal geometry, and C3 radial internal clearance make it an ideal solution for scenarios involving thermal expansion and high operational demands, ensuring reliable performance and long service life.
1208 ETN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| E | Optimized Internal Design | Enhanced load rating and operational performance. |
| TN9 | Nylon Cage, Glass Fiber Reinforced | Facilitates high-speed operation, low friction, and is suitable for a wide temperature range. |
| C3 | Greater than Normal Radial Internal Clearance | Accommodates thermal expansion in applications, preventing preload and potential seizure. |
1208 ETN9/C3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and optimized raceway geometry provide superior stiffness and enable the bearing to handle substantial combined radial and axial loads.
- High-Speed Capability: The lightweight and robust TN9 nylon cage ensures stable operation and minimal centrifugal forces, contributing to the bearing's high limiting speed of 11,000 rpm.
- Precision & Reliability: Manufactured from high-grade chrome steel for both rings and balls, the bearing offers consistent performance, high durability, and extended service life under demanding conditions.
- Operational Versatility: The C3 clearance and standard factory lubrication make it suitable for a broad range of applications, particularly where thermal expansion is a factor.
1208 ETN9/C3 Bearing Typical Application Areas
This bearing is commonly specified in industrial machinery where reliability and load capacity are paramount. Key sectors include:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery requiring robust bearing dimensions (40mm bore, 80mm OD)
