3305 A
Double Row Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
3305 A
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.35 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.011mm to 0
Width
25.4 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.1 mm
Distance from side face to load point
36 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7312 lbf
Radial static load rating
4950 lbf
Limiting speed
11 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:
$ 14.17
/ each
In Stock
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3305 A Bearing Product Overview & Core Advantages
The 3305 A is a metric double row angular contact ball bearing engineered for high-performance applications requiring superior precision and rigidity. This bearing is designed to simultaneously handle significant combined loads—both radial and axial loads in both directions—making it an exceptionally versatile component. Its P6 (ABEC-3) tolerance class ensures high running accuracy, while its robust construction provides high rigidity and stable operation. The open design, pre-lubricated for immediate use, is ideal for demanding, high-reliability scenarios where precision is paramount.
3305 A Bearing Model Code Explained, Specifications & Naming Convention
The model number 3305 A can be broken down as follows to understand its technical specifications:
- 3305: Basic series designation, indicating a metric double row angular contact ball bearing with a 25 mm bore.
- A: Denotes a 30° contact angle. This specific angle is optimized for supporting high axial loads while maintaining excellent radial load capacity.
3305 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides a significantly stiffer support structure compared to single row bearings, enabling it to withstand heavy combined loads and moment loads with minimal deflection.
- Precision Performance: Manufactured to a P6 (ABEC-3) tolerance class, this bearing guarantees high running accuracy and low noise and vibration levels, which is critical for precision machinery.
- High-Speed Capability: Featuring a lightweight, durable stainless steel cage, the bearing is capable of achieving a limiting speed of 11,000 rpm, making it suitable for high-speed applications.
- Material & Construction: The rings and balls are made from high-grade chrome steel, providing excellent wear resistance and fatigue life. The bearing is pre-lubricated for immediate operation within a wide temperature range of -30°C to 110°C.
3305 A Bearing Typical Application Areas
The 3305 A bearing is ideally suited for a wide range of industrial equipment where precision, rigidity, and the ability to handle combined loads are essential. Key application areas include:
- Machine Tool Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
