1204TN
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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1204TN Bearing Product Overview & Core Advantages
The 1204TN is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric bearing features an open design with a nylon cage, enabling it to handle significant combined loads—both radial and axial forces—simultaneously. Its compact dimensions (20mm bore, 47mm OD, 14mm width) and optimized internal geometry contribute to high rigidity and stable operation in demanding environments. Pre-lubricated and operating within a temperature range of -30°C to 110°C, it offers ready-to-install convenience and consistent performance.
1204TN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1204 | Standard designation indicating a double row angular contact ball bearing with 20mm bore diameter and 47mm outside diameter |
| TN | Nylon cage (polyamide) design providing excellent high-speed capability, reduced friction, and quiet operation |
1204TN Bearing Structural Features & Performance Benefits
Double Row Design for Enhanced Rigidity: The two rows of balls arranged at a contact angle provide superior stiffness and load capacity compared to single row bearings, making it ideal for applications requiring precise shaft positioning.
Optimized Load Distribution: Engineered to handle combined radial and axial loads simultaneously, this bearing eliminates the need for complex bearing arrangements while ensuring reliable performance under multi-directional forces.
High-Speed Performance: The TN nylon cage offers excellent strength-to-weight ratio, reducing centrifugal forces and enabling high-speed operation up to 20,000 rpm while maintaining dimensional stability.
Precision Manufacturing: Manufactured from chrome steel with tight dimensional tolerances and CN radial internal clearance, ensuring consistent performance and long service life in precision applications.
1204TN Bearing Typical Application Areas
- Machine Tool Spindles - Providing high rigidity and precision for milling, grinding, and turning operations
- Industrial Pumps - Handling combined loads in centrifugal and gear pump applications
- Electric Motors - Supporting rotor assemblies in high-speed motor designs
- Precision Instruments - Ensuring accurate positioning in measuring and testing equipment
- Material Handling Equipment - Supporting shafts in conveyor systems and automated machinery
