3304 A-2RS1TN9/MT33
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
3304 A-2RS1TN9/MT33
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.22 kg
Tolerance class
P6 (ABEC-3)
Seal type
Sealed
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
9 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:
$ 16.1
/ each
In Stock
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3304 A-2RS1TN9/MT33 Bearing Product Overview & Core Advantages
The 3304 A-2RS1TN9/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 sealed, offering long service life and minimal maintenance.
3304 A-2RS1TN9/MT33 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3304 | Basic bearing designation, indicating the bearing size with a 20mm bore, 52mm OD, and 22.2mm width. |
| A | Contact angle of 30°, optimized for carrying substantial axial loads. |
| 2RS1 | Features two rubber contact seals on both sides, providing superior protection against contaminants and retaining lubricant. |
| TN9 | Polyamide (nylon) cage, injection molded. This cage material contributes to quiet operation, reduced friction, and is suitable for high-speed applications. |
| MT33 | Indicates the bearing is pre-lubricated with a high-performance lithium soap complex grease, suitable for a wide temperature range and offering excellent stability. |
3304 A-2RS1TN9/MT33 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial rigidity, enabling the bearing to support heavy combined loads with high precision. The 30° contact angle is specifically designed to handle significant thrust loads from both directions.
- High-Speed Performance: The lightweight TN9 polymer cage reduces centrifugal forces, while the optimized internal geometry and effective MT33 lubrication allow for a high limiting speed of 9,000 rpm.
- Maintenance-Free Operation: The integral 2RS1 contact seals effectively shield the bearing from moisture and debris. Combined with the long-life MT33 grease, this ensures reliable, lubricated-for-life performance in many applications, reducing total cost of ownership.
- Precision Grade: Manufactured to P6 (ABEC-3) tolerance class, this precision bearing ensures smooth running and accurate rotational performance.
3304 A-2RS1TN9/MT33 Bearing Typical Application Areas
This versatile double row angular contact ball bearing is ideally suited for demanding applications across various industries, including:
- Machine Tool Spindles: For high-precision, high-speed machining centers.
- Industrial Pumps and Compressors: Where reliability and handling of combined loads are critical.
- Precision Gearboxes and Transmissions: Providing rigid support for shafts under complex loading conditions.
- Electric Motors and Generators: Especially in mid-to-high-speed variants requiring sealed and pre-lubricated solutions.
