4204 ATN9
Double Row Deep Groove Ball Bearings
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Materials
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4204 ATN9 Bearing Product Overview & Core Advantages
The 4204 ATN9 is a double row angular contact ball bearing designed for high-performance applications. This precision bearing excels at handling combined loads, supporting significant radial forces and moderate axial loads in both directions simultaneously. Its compact bearing dimensions (20mm bore, 47mm OD, 18mm width) and double row construction deliver exceptional high rigidity, making it ideal for applications demanding high accuracy and operational reliability. Manufactured to ABEC-1 tolerance standards, it ensures consistent performance in demanding industrial environments.
4204 ATN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 4204 | Standard bearing series designation indicating metric dimensions (20mm bore, 47mm OD) |
| A | Contact angle of 30°, optimized for carrying combined radial and axial loads |
| TN9 | Nylon cage (polyamide) enabling high-speed operation and reduced friction |
4204 ATN9 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior stiffness and stability, effectively handling combined loads while maintaining precision alignment under demanding conditions.
High-Speed Performance: The TN9 nylon cage offers excellent strength-to-weight ratio, reducing centrifugal forces and enabling operation at limiting speeds up to 24,000 rpm with minimal friction and heat generation.
Precision Engineering: Manufactured from chrome steel with ABEC-1 tolerance class and C0 radial clearance (0.006mm to 0.020mm), ensuring consistent performance and long service life in precision applications.
Temperature Resilience: Operating temperature range of -30°C to 110°C allows for reliable performance across various industrial environments.
4204 ATN9 Bearing Typical Application Areas
This double row angular contact ball bearing is particularly suited for:
- Machine Tool Spindles - Providing high rigidity and precision for machining operations
- Industrial Gearboxes - Handling combined loads in compact power transmission systems
- Precision Instrumentation - Ensuring accurate positioning and smooth operation
- High-Speed Motors - Supporting rotational accuracy at elevated speeds
- Material Handling Equipment - Withstanding radial and axial loads in conveyor systems
