3304 A-2ZTN9/MT33
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
3304 A-2ZTN9/MT33
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.22 kg
Tolerance class
P6 (ABEC-3)
Seal type
Shielded
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
52 mm
Outside diameter tolerance
-0.011mm to 0
Width
22.2 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.1 mm
Distance from side face to load point
30 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5512 lbf
Radial static load rating
3510 lbf
Limiting speed
13 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 15.68
/ each
In Stock
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3304 A-2ZTN9/MT33 Bearing Product Overview & Core Advantages
The 3304 A-2ZTN9/MT33 is a double row angular contact ball bearing engineered for applications requiring high precision and reliability. Its compact design enables it to simultaneously handle significant combined loads—both radial and bidirectional axial loads—making it an ideal solution for space-constrained, high-performance assemblies. The bearing is pre-lubricated and shielded, offering long-term operational stability and reduced maintenance needs.
3304 A-2ZTN9/MT33 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Benefit |
|---|---|---|
| A | Optimized contact angle design | Enhanced axial load capacity and operational precision |
| 2Z | Shielded on both sides | Effective contamination exclusion, extended service life |
| TN9 | Stainless steel cage, polymer design | Reduced friction, suitable for high-speed applications |
| MT33 | Pre-filled high-performance grease | Reliable lubrication across a wide temperature range (-30°C to 110°C) |
3304 A-2ZTN9/MT33 Bearing Structural Features & Performance Benefits
- High Rigidity: The double row ball complement and optimized raceway geometry provide exceptional stiffness, minimizing deflection under combined loads and ensuring precise shaft positioning.
- Superior Load Capacity: Engineered to support substantial radial loads and bidirectional axial loads simultaneously, making it versatile for complex loading conditions.
- High-Speed Performance: The lightweight TN9 polymer cage and effective MT33 grease lubrication work in tandem to enable a high limiting speed of 13,000 rpm, reducing centrifugal forces and heat generation.
- Maintenance-Free Operation: With integral 2Z shields and factory-applied grease, the bearing is protected from contaminants and is lubricated for life in many applications, reducing total cost of ownership.
3304 A-2ZTN9/MT33 Bearing Typical Application Areas
This precision bearing is widely specified in demanding sectors such as:
- Machine Tool Spindles: For high-speed, high-precision machining centers requiring rigidity and accuracy.
- Industrial Pumps & Compressors: To handle combined radial and axial thrust loads reliably.
- Precision Gearboxes & Transmissions: Where compact design and high load capacity are critical.
- Electric Motors: Especially in mid-to-high-speed variants requiring long-term, maintenance-free operation.
