Ball Bearings from RS Components, Ltd.

1349098


 
 
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The BSN series of ball screw support bearings are double row, angular contact thrust ball bearings, with a 60° contact angle. They are equivalent to two single row bearings in a back-to-back arrangement, with a single outer ring. Bearings are supplied ready to be mounted. They come greased with long life lithium soap grease, with synthetic hydrocarbon base oil. Under normal operating conditions, the bearings are greased for life. A relubrication groove on the outside surface of the outer ring allows the bearings to be relubricated during operation if necessary. The bearings are sealed on both sides. The low friction contact lip seal runs in a grove in the inner ring giving excellent sealing characteristics, while minimising torque and heat generation. Preload is set during manufacture so that the correct loading is achieved when the lock nut is tightened to the recommended torque.
Inside Diameter = 25mm
Outside Diameter = 57mm
Ball Bearing Type = Angular Contact
Race Width = 56mm
End Type = Sealed
Number of Rows = 2
Static Load Rating = 96kN
Race Type = Plain
Dynamic Load Rating = 44kN
Bore Type = Parallel


Specifications

Manufacturer
NSK Precision America
Manufacturer Part Number
BSN2557DDUHP2BDT R BE4L5
Product Category
Ball Bearings
Primary Bearing Category
Angular Contact Ball Bearing
Design Units
Metric
Bore
0.9843 inch (25.000 mm)
Outside Diameter
2.2441 inch (57.000 mm)
Static Axial
21581 lbs (9787 kg)
Static Radial
 
Dynamic Axial
 
Dynamic Radial
 
Seals / Shields
 
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