1209KTN
1200 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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1209KTN Bearing Product Overview & Core Advantages
The 1209KTN is a double row angular contact ball bearing designed for applications requiring high rigidity and the ability to handle combined loads. Its metric construction features a tapered bore (1:12) for precise mounting and secure shaft fits. This precision bearing is engineered to support significant radial loads while accommodating axial loads in both directions, making it a compact and reliable solution for demanding industrial environments. The use of a nylon cage contributes to its suitability for high-speed operation.
1209KTN Bearing Model Code Explained, Specifications & Naming Convention
- 1209: Basic designation indicating a Double Row Angular Contact Ball Bearing with a 45mm bore and 85mm outside diameter.
- K: Denotes a tapered bore with a 1:12 ratio.
- TN: Signifies the cage material and type. T indicates a machined (turned) cage, and N specifies the material as Nylon (Polyamide 66), which is lightweight and ideal for high speeds and low noise.
1209KTN Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior rigidity and enables the bearing to support substantial radial dynamic loads (5152 lbf) and combined loads effectively.
High-Speed Performance: The lightweight and robust nylon (TN) cage reduces centrifugal forces, minimizes friction, and allows for a high limiting speed (11,000 rpm), making it an excellent high-speed bearing.
Precision Mounting: The tapered bore (K) ensures a precise and secure interference fit on the shaft, critical for maintaining accuracy and performance in high-precision applications.
Standard Internal Clearance: The CN radial internal clearance is a standard grade suitable for a wide range of common operating conditions.
1209KTN Bearing Typical Application Areas
The 1209KTN is ideally suited for a variety of industrial machinery and equipment, including:
- Machine Tool Spindles
- Gearboxes and Transmissions
- Industrial Pumps and Compressors
- Electric Motors
- Material Handling Equipment
