Bearing NA4904
Inner diameter:: 20 mm
Outer diameter: 25 mm
The size of the width: 37 mm
Weight:: 0.074 kg
Outer diameter: 25 mm
The size of the width: 37 mm
Weight:: 0.074 kg
Technical specifications
Designation : NA4904
Dimensions, mm : 20x25x37
Producer : ETERNO
Technical data from the manufacturers catalog :
Weight - 0.074 Kg
Dynamic load rating (C) - 17040 kN
Static load rating (C0) - 20400 kN
Outside width (C) - 17mm
Grease lubrication speed - 12800 rev/min
SEALS (REINFORCED SEAL) (F)
Manufacturer: FEKO
Sizes: 42x57.15x10 (mm)

RPP8 3904 ( RPP 8 3904 -V, -M, -MFX )
Manufacturer: ContiTech AG

K85 PU(86x81,5x4,5 )
Manufacturer: KASTAS
Sizes: 86x81,5x4,5 (mm)

K49 PU/NBR(40x29x4,2)
Manufacturer: KASTAS
Sizes: 40x29x4,2 (mm)

B 158 4062 Le/ 4000 Li
Manufacturer: ContiTech AG

SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 80x105x10 (mm)

Подшипник C4134V
Manufacturer: SKF
Sizes: 170x280x109 (mm)
Weight:: 27 (kg)

T5 DD
Manufacturer: ContiTech AG

T20 DD
Manufacturer: ContiTech AG

AT10 DD
Manufacturer: ContiTech AG


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.