3306 A-2ZTN9/MT33
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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3306 A-2ZTN9/MT33 Bearing Product Overview & Core Advantages
The 3306 A-2ZTN9/MT33 is a double row angular contact ball bearing engineered for applications demanding high precision and reliability. This precision bearing is designed to accommodate combined loads—simultaneously handling significant radial loads and bidirectional axial loads. Its compact bearing dimensions (30mm bore, 72mm OD, 30.2mm width) and robust construction make it an ideal solution for space-constrained, high-performance assemblies, offering exceptional operational stability and long service life.
3306 A-2ZTN9/MT33 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3306 | Standard bearing series designation, defining the basic dimensions. |
| A | Contact angle of 30°, optimized for carrying high axial loads. |
| 2Z | Indicates shielded seals on both sides, providing effective protection against contaminants. |
| TN9 | Denotes a cage made of stainless steel, contributing to high strength and suitability for high-speed applications. |
| MT33 | Specifies the bearing is pre-lubricated with a high-performance grease, ensuring immediate operation and long-term lubrication. |
3306 A-2ZTN9/MT33 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball complement and 30° contact angle design provide superior high rigidity, enabling stable support for combined loads and moment loads.
High-Speed Performance: The lightweight and robust stainless steel TN9 cage minimizes centrifugal forces, allowing for a high limiting speed of 9,000 rpm. This makes it an excellent high-speed bearing.
Maintenance-Free Operation: The combination of 2Z shields and factory-applied MT33 grease creates a sealed, lubricated environment. This design prevents lubricant leakage and contaminant ingress, resulting in a long, maintenance-free service life.
Precision Engineering: Manufactured to a P6 (ABEC-3) tolerance class, this bearing ensures smooth, quiet, and precise running, which is critical for high-accuracy applications.
3306 A-2ZTN9/MT33 Bearing Typical Application Areas
This versatile double row angular contact ball bearing
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Precision Gearboxes
- Material Handling Equipment
- Medical and Laboratory Equipment
