2204 ETN9/C3
2200 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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2204 ETN9/C3 Bearing Product Overview & Core Advantages
The 2204 ETN9/C3 is a double row angular contact ball bearing engineered for applications demanding high performance and reliability. This precision bearing is designed to accommodate combined loads, simultaneously supporting significant radial loads and axial loads in both directions. Its compact design, featuring a 20 mm bore and 47 mm outside diameter, offers a space-saving solution without compromising on load capacity or rigidity. The bearing comes pre-lubricated and features a nylon cage (TN9) optimized for high-speed operation, making it an ideal choice for high-precision industrial machinery.
Model Code Breakdown
- 2204: Standard designation indicating a double row angular contact ball bearing with a 20 mm bore and 47 mm outside diameter.
- E: Signifies an optimized internal design, typically featuring a larger ball complement and modified raceway geometry for increased load carrying capacity.
- TN9: Denotes the cage material and type. T indicates a glass fiber reinforced nylon cage, and N9 specifies a specific design suitable for high speeds and offering low friction and excellent acceleration characteristics.
- C3: Specifies a greater radial internal clearance than the standard C0 group. This is beneficial for applications with higher operational temperatures or where fits cause a reduction in internal clearance.
2204 ETN9/C3 Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The double row design provides superior rigidity and stability compared to single row bearings, enabling it to handle heavy combined loads and moment loads effectively. The optimized "E" type internal construction further enhances its dynamic and static load ratings.
High-Speed Performance: The lightweight and robust TN9 nylon cage is engineered for high-speed applications, contributing to a low limiting speed of 20,000 rpm. This cage design minimizes centrifugal forces, reduces friction, and ensures smooth operation at elevated rotational velocities.
Pre-Lubricated for Longevity: The bearing is supplied with a high-quality grease, providing immediate readiness for installation and ensuring reliable initial operation across its specified temperature range of -30°C to 110°C.
Precision Dimensions: Manufactured with tight tolerances on the bore diameter, outside diameter, and width, this bearing ensures precise fit and consistent performance in demanding applications.
2204 ETN9/C3 Bearing Typical Application Areas
The 2204 ETN9/C3 is suited for a wide range of industrial applications requiring robust performance and high-speed capability, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Pumps and Compressors
- Material Handling Equipment
- Precision Spindles