3308 ATN9
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
3308 ATN9
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.93 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.013mm to 0
Width
36.5 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.5 mm
Distance from side face to load point
53 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
14738 lbf
Radial static load rating
10800 lbf
Limiting speed
7.5 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 29.88
/ each
In Stock
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3308 ATN9 Bearing Product Overview & Core Advantages
The 3308 ATN9 is a double row angular contact ball bearing designed for applications requiring high precision and rigidity. Its open seal type allows for versatile lubrication options, while the nylon cage enables superior high-speed performance. Engineered to handle combined loads—simultaneous radial and axial forces—this bearing is ideal for demanding industrial environments where accuracy and reliability are paramount. Its compact design and P6 (ABEC-3) tolerance class ensure consistent operation in precision assemblies.
Model Code Breakdown
| Suffix | Technical Meaning |
|---|---|
| A | Designates a 30° contact angle, optimized for handling significant axial loads. |
| TN9 | Indicates a glass fiber reinforced nylon cage, contributing to low friction, quiet operation, and high limiting speed. |
3308 ATN9 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to support substantial combined loads with minimal deflection.
- High-Speed Capability: The lightweight nylon (TN9) cage reduces centrifugal forces and ensures smooth operation at high rotational speeds, up to 7,500 rpm.
- Precision Engineering: Manufactured to P6 (ABEC-3) tolerance standards, this bearing guarantees precise running accuracy and dimensional stability.
- Material Durability: Components made from chrome steel offer excellent wear resistance and long service life under demanding conditions.
3308 ATN9 Bearing Typical Application Areas
This bearing is widely used in:
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Precision Gearboxes
- Material Handling Equipment
- Agricultural Machinery
