3209 A-2ZTN9/MT33
Double Row Angular Contact Ball Bearings
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3209 A-2ZTN9/MT33 Bearing Product Overview & Core Advantages
The 3209 A-2ZTN9/MT33 is a double row angular contact ball bearing engineered for applications requiring high precision and reliability. This precision bearing is designed to simultaneously accommodate significant combined loads, including radial loads and bidirectional axial loads. Its compact bearing dimensions (45 mm bore, 85 mm OD, 30.2 mm width) and robust construction make it ideal for space-constrained, high-performance assemblies demanding high rigidity and operational stability.
3209 A-2ZTN9/MT33 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Benefit |
|---|---|---|
| A | Optimized internal design | Enhanced performance characteristics and load distribution. |
| 2Z | Shielded on both sides | Effective protection against contaminants, contributing to a maintenance-free design. |
| TN9 | Stainless Steel, Polymer Cage | Reduced friction and weight, enabling higher limiting speeds and excellent performance in demanding conditions. |
| MT33 | High-performance grease | Pre-lubricated for long service life within the specified temperature range (-30° to 110 °C). |
3209 A-2ZTN9/MT33 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball complement and optimized contact angle provide superior high rigidity, enabling the bearing to handle substantial combined loads (Radial dynamic: 11700 lbf, Static: 9338 lbf) with minimal deflection.
High-Speed Performance: The combination of the lightweight TN9 polymer cage and optimized MT33 grease lubrication significantly reduces friction and heat generation, allowing for a high limiting speed of 7,500 rpm.
Maintenance-Free & Longevity: With shields (2Z) on both sides and factory-filled high-performance grease, the bearing is sealed against contamination and lubricated for life in many applications, reducing total cost of ownership.
Precision Engineering: Manufactured to P6 (ABEC-3) tolerance class with tight dimensional controls, ensuring consistent performance and ease of integration into precision machinery.
3209 A-2ZTN9/MT33 Bearing Typical Application Areas
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Precision Gearboxes
- Material Handling Equipment
- Medical and Precision Instrumentation
