1211 ETN9/W64
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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1211 ETN9/W64 Bearing Product Overview & Core Advantages
The 1211 ETN9/W64 is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This precision bearing excels at simultaneously handling combined loads, including radial forces and bidirectional axial loads. Its compact bearing dimensions (55mm bore × 100mm OD × 21mm width) and optimized internal geometry deliver exceptional high rigidity and stable rotational performance. Manufactured from chrome steel with a nylon cage, this bearing is pre-lubricated for immediate operation and offers reliable performance across a wide temperature range.
1211 ETN9/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| E | Optimized internal design | Enhanced load capacity and improved stress distribution |
| TN9 | Nylon cage, glass fiber reinforced | Excellent high-speed capability, reduced friction and weight |
| W64 | Special lubrication with solid additives | Extended service life, reduced maintenance requirements |
1211 ETN9/W64 Bearing Structural Features & Performance Benefits
High Rigidity Design: The double row construction provides superior stiffness compared to single row bearings, making it ideal for applications requiring minimal deflection under combined loads.
Enhanced Load Capacity: Engineered to handle significant radial loads (6210 lbf dynamic rating) while simultaneously accommodating bidirectional axial forces, offering versatile load-bearing capability.
High-Speed Performance: The TN9 nylon cage enables smooth operation at limiting speeds up to 9,000 rpm, with excellent acceleration characteristics and reduced cage wear.
Optimized Lubrication: Pre-lubricated with W64 specialty grease containing solid additives, providing reliable operation across the entire temperature range (-30°C to 110°C) without requiring frequent re-lubrication.
Precision Manufacturing: Manufactured with tight dimensional tolerances and CN radial internal clearance for consistent performance in precision applications.
1211 ETN9/W64 Bearing Typical Application Areas
- Electric Motors: Main shaft support in industrial motors requiring high-speed operation and radial load capacity
- Industrial Gearboxes: Power transmission applications where combined loads and compact design are critical
- Material Handling Equipment: Conveyor systems, pulley assemblies, and transfer mechanisms
- Agricultural Machinery: Implement drives, PTO shafts, and harvesting equipment
- Industrial Fans & Blowers: High-speed rotor support in ventilation and air movement systems
- General Industrial Machinery: Various applications requiring reliable performance under radial and moderate axial loads
