Bearing 389A / 383A
Inner diameter:: 53.975 mm
Outer diameter: 100.000 mm
The size of the width: 21.000 mm
Weight:: 0.710 kg
Outer diameter: 100.000 mm
The size of the width: 21.000 mm
Weight:: 0.710 kg
Technical specifications
Designation: 389A / 383A
Producer: TIMKEN
Technical data from the manufacturers catalog :
Inner diameter(d): 53.975 mm
External diameter(D): 100.000 mm
Working width (T): 21.000 mm
Width (height) (B): 21.946 mm
Outer cage width (C): 17.826 mm
Internal chamfer radius (R): 0.8 mm
Outside chamfer radius (r): 2.0 mm
Cr (KN): 74.5
Cor (KN): 91.5
a: 17.9 мм
Width: 0.710 mm
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INSTALLING BEARINGS
Approximately 16% of all early pill accidents are caused by faulty mounting (generally excessive force) and lack of proper tools.

DROPPING BEARINGS
The need for dismantling (removal) of the bearing can be caused by several reasons: failure of the bearings, disassembly of other parts of the mechanism, and so on.

SELECTION OF FUEL OILS
The use of grease to lubricate the bearings ensures smooth operation and maximum reliability of bearings, even in extreme conditions.