Bearing NA6903
Inner diameter:: 17 mm
Outer diameter: 22 mm
The size of the width: 30 mm
Weight:: 0.069 kg
Outer diameter: 22 mm
The size of the width: 30 mm
Weight:: 0.069 kg
Technical specifications
Designation : NA6903
Dimensions, mm : 17x22x30
Producer : ETERNO
Technical data from the manufacturers catalog :
Weight - 0.069 Kg
Dynamic load rating (C) - 14560 kN
Static load rating (C0) - 21760 kN
Outside width (C) - 23mm
Grease lubrication speed - 14400 rev/min
Bearing HK3512
Manufacturer: INA-FAG
Sizes: 35x42x12 (mm)
Weight:: 0.027 (kg)

AT20 DD
Manufacturer: ContiTech AG

Bearing 21311W33 (53311w33)
Manufacturer: TMB
Sizes: 55x120x29 (mm)
Weight:: 1.95 (kg)

Bearing 25578 / 25519
Manufacturer: TIMKEN
Sizes: 42.862x82.55x23.812 (mm)
Weight:: 0.578 (kg)

O-RING
Manufacturer: NQK SF
Sizes: 8.00x12.00x2.00 (mm)

Bearing FC66720
Manufacturer: INA-FAG
Sizes: 68.150x92.100x3.5 (mm)
Weight:: 0.010 (kg)

Bearing 61913 (1000913)
Manufacturer: TMB
Sizes: 65x90x13 (mm)
Weight:: 0.22 (kg)

C 94 22x2390 Li / 2449 Ld
Manufacturer: ContiTech AG

BB214 ( ВВ 214 ) Le= 5505 мм
Manufacturer: ContiTech AG

Подшипник 16012
Manufacturer: NSK-RHP
Sizes: 60x95x11 (mm)
Weight:: 0.281 (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.