Bearing 61903 ZZ
Inner diameter:: 17 mm
Outer diameter: 30 mm
The size of the width: 7 mm
Weight:: 0.018 kg
Outer diameter: 30 mm
The size of the width: 7 mm
Weight:: 0.018 kg
Technical specifications
Designation : 61903 ZZ
Dimensions, mm : 17x30x7
Producer : ETERNO
Technical data from the manufacturers catalog :
Weight - 0.018 Kg
Dynamic load rating (C) - 4360 kN
Static load rating (C0) - 2320 kN
Grease lubrication speed - 22000 rev/min
Speed limit with oil lubrication - 26000 rev/min
Bearing 7010CETAP4 (36110KJ-SH)
Manufacturer: TMB
Sizes: 50x80x16 (mm)
Weight:: 0.25 (kg)

8V 2120 / 25J 5385 Le
Manufacturer: ContiTech AG

Bearing 7309CP6 (E36309)
Manufacturer: TMB
Sizes: 45x100x25 (mm)
Weight:: 0.91 (kg)

Bearing 4402
Manufacturer: INA-FAG
Sizes: 14.288x36.530x15.875 (mm)
Weight:: 0.084 (kg)

Bearing RNA4907RS
Manufacturer: ETERNO
Sizes: 42x55x20 (mm)
Weight:: 107 (kg)

Bearing 23948W33
Manufacturer: TMB
Sizes: 240x320x60 (mm)
Weight:: 13.5 (kg)

SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 120x140x12 (mm)

Bearing 51426
Manufacturer: ETERNO
Sizes: 130x270x110 (mm)
Weight:: 32 (kg)

Mechanical seal RM 551С
Manufacturer: RiMi

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Manufacturer: INA-FAG
Sizes: 20x47x12 (mm)
Weight:: 0.11 (kg)


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.