1201 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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1201 ETN9/W64 Bearing Product Overview & Core Advantages
The 1201 ETN9/W64 is a metric double row angular contact ball bearing engineered for applications requiring high rigidity and reliable performance under combined loading conditions. Featuring an open design with nylon cage (ETN9) and factory-applied specialty grease (W64), this bearing delivers excellent high-speed capabilities while maintaining precision operation. Its compact design and CN radial internal clearance make it ideal for precision machinery where space constraints and rotational accuracy are critical factors.
1201 ETN9/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
| 1201 | Standard metric size designation (12mm bore, 32mm OD) | Standardized dimensions for easy integration |
| ETN9 | Nylon cage, pressed window type | Enhanced high-speed performance and reduced friction |
| W64 | Special synthetic grease filling | Extended lubrication life and wide temperature range compatibility |
1201 ETN9/W64 Bearing Structural Features & Performance Benefits
Double Row Design: Provides superior rigidity and load capacity compared to single row bearings, enabling stable operation under combined radial and axial loads.
Nylon Cage (ETN9): The lightweight polymer cage reduces centrifugal forces, contributing to the bearing's exceptional high-speed performance (limiting speed: 32,000 rpm) while providing excellent wear resistance.
Optimized Lubrication: Pre-filled with W64 specialty grease that maintains consistent performance across the entire operating temperature range (-30°C to 110°C), ensuring long-term reliability without frequent maintenance.
Precision Manufacturing: Manufactured with CN radial internal clearance and tight dimensional tolerances, delivering consistent performance in precision applications.
1201 ETN9/W64 Bearing Typical Application Areas
- Precision spindles in small machining centers and grinding equipment
- High-speed motors and servo drives requiring compact bearing solutions
- Medical equipment components where reliability and precision are critical
- Office automation equipment including high-speed scanners and printers
- Small pumps and compressors requiring combined load capacity
- Robotics and automation joints and drive mechanisms
