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3308 A	Double Row Angular Contact Ball Bearing 40x90x36.5mm

3308 A Double Row Angular Contact Ball Bearing 40x90x36.5mm


Specifications
Inner Diameter (ID)
40
Outer Diameter (OD)
90
Width (W)
36.5
Overall Size (IDxODxW)
40x90x36.5
Dynamic Load Rating
65.5 kN
Static Load Rating
48 kN
Reference Speed
7 500 rpm
Limiting Speed
7 500 rpm
Cage Material
Steel
Seal Type
None On Both Sides
Clearance
CN
Precision
Grade 0
Operating Temperature
-40 °C to +120 °C
Contact Angle
30 °
Mass
0.98 kg
Details

Double row angular contact ball bearings are specialized rotating components designed to accommodate both radial and axial loads by incorporating two rows of balls set at an angle to the bearing axis. This unique design enhances their ability to handle combined loads and provides improved rigidity. The arrangement of the inner and outer rings and the double-row configuration allow these bearings to achieve higher axial load-carrying capacity compared to single-row angular contact ball bearings. This makes them suitable for applications where both radial and axial forces are present, such as in machine tool spindles, pumps, and gearboxes. The contact angle between the balls and the raceways provides the bearings with excellent axial rigidity, contributing to their precise positioning capabilities. Double row angular contact ball bearings are valued for their versatility, reliability, and efficiency in various industrial contexts, where the need for handling multiple types of loads is paramount. 


SPECIFICATIONS
 
 
Inner Diameter 40 mm Number of Rows 2
Outer Diameter 90 mm Material Steel
Width 36.5 mm Cage Material Steel
Dynamic Load Rating 65.5 kN Seal Type None On Both Sides
Static Load Rating 48 kN Clearance CN
Fatigue Load Limit 2.04 kN Precision Grade 0
Reference Speed 7 500 rpm Min Temperature -40 °C
Limiting Speed 7 500 rpm Max Temperature +120 °C
Contact Angle 30 ° Size Standard Metric System
Rolling Element Ball Mass 0.98 kg


FEATURES AND BENEFITS


  • Double row design with symmetrical layout.

  • 30° contact angle for balanced load distribution.

  • Accommodate radial load and axial load in one direction.

  • Provide a high degree of accuracy and are capable of running at high speed.

Yes, miniature ball bearings are designed to handle high rotational speeds, making them ideal for devices and equipment that require rapid movement.

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