3220 A
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
3220 A
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
6.1 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
180 mm
Outside diameter tolerance
-0.018mm to 0
Width
60.3 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2.1 mm
Distance from side face to load point
107 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
126.55 mm
Outer Ring Dimensions
Shoulder diameter outer ring
161.05 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
40050 lbf
Radial static load rating
37350 lbf
Limiting speed
3.2 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:
$ 157.91
/ each
In Stock
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3220 A Bearing Product Overview & Core Advantages
The 3220 A is a precision double row angular contact ball bearing designed for demanding applications requiring high rigidity and the ability to support combined loads. Its robust construction enables it to simultaneously carry significant radial loads and bidirectional axial loads. Manufactured to a P6 (ABEC-3) tolerance class, this bearing ensures high running accuracy and reliability. The open design, combined with a stainless steel cage, makes it an excellent choice for high-speed operation and applications where controlled lubrication is used.
3220 A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 3220 | Basic designation indicating a double row angular contact ball bearing with a 100 mm bore and 180 mm outside diameter. |
| A | Signifies a 30° contact angle, optimized for supporting higher axial loads. |
3220 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to handle heavy combined loads effectively. With a dynamic load rating of 40050 lbf and a static load rating of 37350 lbf, it is built for durability.
- Optimized for High-Speed Performance: The lightweight, durable stainless steel cage ensures stable operation and contributes to a high limiting speed of 3,200 rpm.
- Precision Engineering: Manufactured to P6 tolerance with precise bearing dimensions (100 mm bore, 180 mm OD, 60.3 mm width), this bearing guarantees high rotational accuracy and minimal runout.
- Robust Material Construction: Rings and balls made from chrome steel offer high fatigue resistance and longevity, suitable for a wide temperature range from -30°C to 110°C.
3220 A Bearing Typical Application Areas
This double row angular contact ball 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
