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3317 A Double Row Angular Contact Ball Bearing 85x180x73mm

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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 85 mm Number of Rows 2
Outer Diameter 180 mm Material Steel
Width 73 mm Cage Material Steel
Dynamic Load Rating 208 kN Seal Type None On Both Sides
Static Load Rating 176 kN Clearance CN
Fatigue Load Limit 6.55 kN Precision Grade 0
Reference Speed 4 000 rpm Min Temperature -40 °C
Limiting Speed 3 600 rpm Max Temperature +120 °C
Contact Angle 30 ° Size Standard Metric System
Rolling Element Ball Mass 7.49 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.

Specifications

Inner Diameter (ID): 85

Outer Diameter (OD): 180

Width (W): 73

Overall Size (IDxODxW): 85x180x73

Dynamic Load Rating: 208 kN

Static Load Rating: 176 kN

Reference Speed: 4 000 rpm

Limiting Speed: 3 600 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: 7.49 kg

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