1208KTN
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1208KTN
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
Taper 1:12
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
CN
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:
$ 30.49
/ each
In Stock
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1208KTN Bearing Product Overview & Core Advantages
The 1208KTN is a double row angular contact ball bearing designed for applications requiring high rigidity and precise operation. Featuring a tapered bore (1:12) for secure shaft mounting, this precision bearing excels in handling combined loads, supporting significant radial forces while managing axial loads in both directions. Its compact design with an 18 mm width makes it ideal for space-constrained, high-reliability machinery. Pre-lubricated and featuring a nylon cage, it offers smooth operation and is ready for immediate installation.
1208KTN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1208 | Standard bearing series designation indicating a 40 mm bore and 80 mm outside diameter. |
| K | Denotes a tapered bore with a 1:12 ratio, allowing for precise interference fit on adapter sleeves or tapered shafts. |
| TN | Indicates the cage material is Nylon (Polyamide 66), contributing to lower friction, quieter operation, and suitability for higher speeds. |
1208KTN Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial stiffness and enables the bearing to support substantial combined radial and axial loads, making it exceptionally stable under complex loading conditions.
- Optimized High-Speed Performance: The lightweight nylon cage (TN) reduces centrifugal forces and ensures stable guidance of the balls, allowing for a high limiting speed of 11,000 rpm. The pre-applied lubrication further enhances high-speed capability.
- Precision Tapered Bore: The K-suffix tapered bore ensures a secure, slip-free fit on the shaft when used with an adapter sleeve, critical for maintaining precision in high-torque applications.
- Standard Internal Clearance: Supplied with a CN group radial internal clearance, which is the normal clearance for general applications, ensuring optimal performance under standard operating conditions.
1208KTN Bearing Typical Application Areas
This bearing is engineered for demanding industrial environments, including:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- Various machinery requiring a robust bearing with a tapered bore for secure mounting.
