Bearing 399A / 393
Inner diameter:: 68.262 mm
Outer diameter: 110 mm
The size of the width: 27 mm
Weight:: 0.829 kg
Outer diameter: 110 mm
The size of the width: 27 mm
Weight:: 0.829 kg
Technical specifications
Designation: 399A / 393
Producer: TIMKEN
Technical data from the manufacturers catalog :
Inner diameter(d): 68.262 mm
External diameter(D): 110 mm
Working width (T): 27 mm
Width (height) (B): 21.996 mm
Outer cage width (C): 27 mm
Internal chamfer radius (R): 2.3 mm
Outside chamfer radius (r): 0.8 mm
Cr (KN): 89.5
Cor (KN): 120.0
a: 21.3 мм
Width: 0.829 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.