3313 A
Double Row Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
3313 A
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
4.1 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.015mm to 0
Width
58.7 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2.1 mm
Distance from side face to load point
84 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
89.85 mm
Outer Ring Dimensions
Shoulder diameter outer ring
115.95 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
32850 lbf
Radial static load rating
24750 lbf
Limiting speed
4.5 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:
$ 70.69
/ each
In Stock
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3313 A Bearing Product Overview & Core Advantages
The 3313 A is a double row angular contact ball bearing designed for applications requiring high precision and exceptional rigidity. This precision bearing excels at simultaneously handling combined radial and bidirectional axial loads. Manufactured to P6 (ABEC-3) tolerance class, it ensures reliable performance in demanding industrial environments. Its open design facilitates custom lubrication schemes, while the robust construction provides outstanding operational stability.
3313 A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| A | Indicates a 30° contact angle, optimized for carrying significant axial loads. |
| (No Seal Suffix) | The bearing is open, allowing for application-specific lubrication and high-speed operation. |
3313 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling stable support under heavy combined loads. It features a substantial radial dynamic load rating of 32,850 lbf and a static load rating of 24,750 lbf.
- Optimized for Precision: Built to a P6 tolerance class with a stainless steel cage, this bearing ensures smooth operation, minimal vibration, and precise running accuracy.
- Robust Material Construction: Components are made from chrome steel for rings and balls, offering high durability and resistance to wear, ensuring a long service life.
- Flexible Lubrication: The open seal type allows for a wide range of lubrication options, making it adaptable to various operational temperature ranges from -30°C to 110°C.
3313 A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery, including:
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Gearboxes and Power Transmission Systems
- Precision Agricultural and Construction Equipment
