1204KTN
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1204KTN
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.12 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Bore type
Taper 1:12
Outside diameter
47 mm
Outside diameter tolerance
-0.011mm to 0
Width
14 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
28.88 mm
Outer Ring Dimensions
Shoulder diameter outer ring
40 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2858 lbf
Radial static load rating
765 lbf
Limiting speed
20 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:
$ 20.14
/ each
In Stock
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1204KTN Bearing Product Overview & Core Advantages
The 1204KTN is a double row angular contact ball bearing designed for exceptional performance in demanding applications. This metric bearing features a tapered bore (1:12) for precise mounting and secure shaft fit. Its core advantages include high rigidity due to the double row design, enabling it to handle significant combined loads (radial and axial). Manufactured with chrome steel rings and balls, and a nylon cage, it is pre-lubricated for immediate use and offers reliable operation within a wide temperature range, making it an ideal choice for high-precision and high-reliability machinery.
1204KTN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1204 | Bearing series and size designation. |
| K | Indicates a tapered bore with a 1:12 ratio. |
| TN | Specifies the cage material as Nylon (Polyamide), contributing to lower friction and quieter operation. |
1204KTN Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement provides superior rigidity and enables the bearing to support substantial radial loads and moderate axial loads from both directions.
- Precision Tapered Bore: The K-suffix tapered bore (1:12) allows for precise axial displacement during mounting onto a tapered shaft adapter, ensuring a tight interference fit and eliminating internal clearance for maximum system stiffness.
- Optimized High-Speed Performance: The lightweight nylon (TN) cage is ideal for high-speed applications, reducing centrifugal forces and allowing for a limiting speed of 20,000 rpm.
- Ready-to-Use & Durable: The bearing comes pre-lubricated and features an open design, facilitating re-lubrication in service. The chrome steel construction ensures long service life and consistent performance.
- Standard Internal Clearance: Supplied with CN (Normal) group radial internal clearance, suitable for a wide range of common operating conditions.
1204KTN Bearing Typical Application Areas
This bearing is engineered for applications requiring high precision, speed, and rigidity. Key industries and equipment include:
- Machine Tool Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Electric Motors
- Material Handling Equipment
