3203 A-2ZTN9/MT33
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 3203 A-2ZTN9/MT33 is a double row angular contact ball bearing engineered for applications requiring high precision and reliability. This precision bearing excels at simultaneously handling combined radial and bidirectional axial loads, making it ideal for compact spaces where high rigidity and operational stability are paramount. Its shielded design and factory-applied lubricant ensure long service life with minimal maintenance.
3203 A-2ZTN9/MT33 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3203 | Basic bearing series designation, indicating bearing dimensions (17mm bore, 40mm OD) |
| A | 30° contact angle, optimized for high axial load capacity |
| 2Z | Both sides shielded for effective contamination protection |
| TN9 | Stainless steel snap-type cage for high-speed performance |
| MT33 | Premium grease lubrication for extended service intervals |
Structural Features and Performance Benefits
High Rigidity: The double row design provides superior stiffness compared to single row bearings, enabling precise shaft positioning and reduced deflection under combined loads.
Enhanced Load Capacity: Engineered with a 30° contact angle to efficiently manage significant bidirectional axial loads in addition to radial forces, making it suitable for complex loading conditions.
High-Speed Capability: The TN9 stainless steel cage and optimized internal geometry contribute to a limiting speed of 16,000 rpm, qualifying it as a high-speed bearing for demanding applications.
Maintenance-Free Operation: The 2Z shields effectively retain lubricant and exclude contaminants, while the MT33 grease provides consistent lubrication across the operating temperature range (-30° to 110°C), ensuring long-term reliability.
3203 A-2ZTN9/MT33 Bearing Typical Application Areas
- Machine Tool Spindles - Precision machining centers requiring high rigidity and accuracy
- Industrial Pumps - Handling combined radial and axial loads in fluid transfer systems
- Compressors - Supporting shafts subject to bidirectional thrust forces
- Precision Instruments - Applications demanding smooth operation and minimal vibration
- Electric Motors - High-speed motor applications requiring reliable bearing performance
