Bearing 388A / 383A
Inner diameter:: 57.531 mm
Outer diameter: 21.000 mm
The size of the width: 21.946 mm
Weight:: 0.652 kg
Outer diameter: 21.000 mm
The size of the width: 21.946 mm
Weight:: 0.652 kg
Technical specifications
Designation: 388A / 383A
Producer: TIMKEN
Technical data from the manufacturers catalog :
Inner diameter(d): 57.531 mm
External diameter(D): 21.000 mm
Working width (T): 21.946 mm
Width (height) (B): 21.946 mm
Outer cage width (C): 17.826 mm
Internal chamfer radius (R): 3.5 mm
Outside chamfer radius (r): 2.0 mm
Cr (KN): 78.0
Cor (KN): 96.5
a: 17.9 мм
Width: 0.652 mm
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Manufacturer: INA-FAG
Sizes: 12x42x19 (mm)
Weight:: 19 (kg)

SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 450x490x25 (mm)

SEALS (REINFORCED SEAL) (AS)
Manufacturer: FEKO
Sizes: 64x100x13 (mm)

Подшипник NU 2304 ET
Manufacturer: NSK-RHP
Sizes: 20x52x21 (mm)
Weight:: 0.209 (kg)

K41 PTFE/NBR(230x209,5x8,1)
Manufacturer: KASTAS
Sizes: 230x209,5x8,1 (mm)

Bearing 30212
Manufacturer: ETERNO
Sizes: 60x110x22 (mm)
Weight:: 0.88 (kg)

Bearing HM89446 / HM89411
Manufacturer: TIMKEN
Sizes: 34.925x76.200x29.370 (mm)
Weight:: 0.655 (kg)

Подшипник 7928 A5
Manufacturer: NSK-RHP
Sizes: 140x190x24 (mm)
Weight:: 1.63 (kg)

K68 POM(100x104x14,8)
Manufacturer: KASTAS
Sizes: 100x104x14,8 (mm)

K21 PU(20x27x6)
Manufacturer: KASTAS
Sizes: 20x27x6 (mm)


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.