1209 ETN9/W64
1200 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
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1209 ETN9/W64 Bearing Product Overview & Core Advantages
The 1209 ETN9/W64 is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric bearing features an open design without seals, allowing for optimal lubrication access and heat dissipation. Its double row construction enables it to accommodate significant combined loads, including substantial radial loads and moderate axial loads in both directions. The bearing is pre-lubricated and utilizes a nylon cage (ETN9), contributing to its suitability for high-speed operation and smooth running. With a compact cross-section, it is an ideal choice for space-constrained, high-performance mechanical systems.
1209 ETN9/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1209 | Basic bearing designation indicating a double row angular contact ball bearing with a 45 mm bore and 85 mm outside diameter. |
| E | Optimized internal design for enhanced load capacity and performance. |
| TN9 | Cage type designation for a nylon cage, polymer, glass fiber reinforced. This cage design is lightweight and promotes excellent high-speed performance and quiet operation. |
| W64 | Lubrication suffix indicating the bearing is pre-greased with a specific, high-performance lubricant suitable for the specified temperature range. |
1209 ETN9/W64 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing design provides superior rigidity and enables the bearing to support significant radial dynamic loads (5152 lbf) and static loads (1755 lbf), as well as combined loads.
- High-Speed Performance: The lightweight and robust nylon cage (TN9) minimizes centrifugal forces and friction, allowing for a high limiting speed of 11,000 rpm. The open seal type facilitates efficient lubrication and cooling.
- Precision & Reliability: Manufactured from chrome steel for both rings and balls, this bearing ensures high durability and long service life. The standard CN radial internal clearance is suitable for a wide range of common applications.
- Ready-to-Install: The bearing is pre-lubricated (W64), simplifying installation and providing immediate protection upon startup.
1209 ETN9/W64 Bearing Typical Application Areas
The 1209 ETN9/W64 is engineered for demanding applications across various industries, including:
- Electric Motors and Precision Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- General machinery requiring robust double row bearings for high-speed and high-load conditions.
