Bearing 4421
Inner diameter:: 44.450 mm
Outer diameter: 74.630 mm
The size of the width: 22.225 mm
Weight:: 0.386 kg
Outer diameter: 74.630 mm
The size of the width: 22.225 mm
Weight:: 0.386 kg
Technical specifications
Designation: 4421
Producer: INA
Technical data from the manufacturers catalog :
Inner diameter: 44.450 mm
External diameter: 74.630 mm
Width (B): 22.225 mm
Weight: 0.386 kg
Резьба (G): 9440 mm
Подшипник 71450/71750
Manufacturer: NSK-RHP
Sizes: 114.3x190.5x47.625 (mm)
Weight:: 5.08 (kg)
3 NBR 70(210,00x03,00)
Manufacturer: KASTAS
K95 NBR(40x48x8)
Manufacturer: KASTAS
Sizes: 40x48x8 (mm)
2.5 FKM 80(042,00x02,50 )
Manufacturer: KASTAS
Bearings KRV72-PP-A
Manufacturer: INA-FAG
Weight:: 1.045 (kg)
STUFFING BOX (REINFORCED CUFFS) NON-STANDARD (KB)
Manufacturer: STO
Sizes: 43x50x9 (mm)
Подшипник 6910DDU
Manufacturer: NSK-RHP
Sizes: 50x72x12 (mm)
Weight:: 0.135 (kg)
Bearing NU332EMZ1 (32332HZ1)
Manufacturer: TMB
Sizes: 160x340x68 (mm)
Weight:: 31 (kg)
SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 150x190x16 (mm)
ШАРИКОПОДШИПНИК РАДИАЛЬНО-УПОРНЫЙ С ЧЕТЫРЕХТОЧЕЧНЫМ КОНТАКТОМ QJ315-N2-MPA
Manufacturer: FAG
Sizes: 75x160x37 (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.
