Bearings NA4904
Inner diameter:: 20 mm
Outer diameter: 37 mm
The size of the width: 17 mm
Weight:: 0.752 kg
Outer diameter: 37 mm
The size of the width: 17 mm
Weight:: 0.752 kg
Technical specifications
Designation: NA4904
Producer: INA
Technical data from the manufacturers catalog :
Inner diameter (d): 20 mm
Inner diameter (F): 25 mm
Outside diameter (D): 37 mm
Width (B): 17 mm
Weight: 0.752 kg
Limiting speed (rpm): 17000
Loading capacity dynamic (C): 21.0
Loading capacity dynamic (C0): 25.5
O-RING
Manufacturer: NQK SF
Sizes: 48.70x59.30x5.30 (mm)

SEALS (REINFORCED SEAL) (AS)
Manufacturer: FEKO
Sizes: 150x190x13 (mm)

Bearing 4116
Manufacturer: INA-FAG
Sizes: 80x115x35 (mm)
Weight:: 1.043 (kg)

2.4 NBR 90(014,30x02,40)
Manufacturer: KASTAS

O-RING
Manufacturer: NQK SF
Sizes: 140.00x148.00x4.00 (mm)

STD 440 S8M CXP
Manufacturer: ContiTech AG

ПОДШИПНИКОВЫЙ УЗЕЛ ШАРИКОВЫЙ РАДИАЛЬНЫЙ PB30
Manufacturer: INA-FAG

Bearing S6305-2Z
Manufacturer: ETERNO
Sizes: 25.00x62.00x17.00 (mm)
Weight:: 230 (kg)

Bearing 30303 (7303E)
Manufacturer: TMB
Sizes: 17x47x15 (mm)
Weight:: 0.13 (kg)

Подшипник 6904DDU
Manufacturer: NSK-RHP
Sizes: 20x37x9 (mm)
Weight:: 0.037 (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.