Bearing NA4903 2RS
Inner diameter:: 17 mm
Outer diameter: 30 mm
The size of the width: 14 mm
Weight:: 0.040 kg
Outer diameter: 30 mm
The size of the width: 14 mm
Weight:: 0.040 kg
Technical specifications
Designation: NA4903 2RS
Producer: INA
Technical data from the manufacturers catalog :
Inner diameter: 17 mm
External diameter: 30 mm
Width: 14 mm
Weight: 0.040 kg
Limit speed (rpm): 9.000
K78 Aramid Phenolic/Graphite(135x140x9,7 )
Manufacturer: KASTAS
Sizes: 135x140x9,7 (mm)
K23 NBR(66,67x50,8x8,85)
Manufacturer: KASTAS
Sizes: 66,67x50,8x8,85 (mm)
Bearing 2788 / 2729
Manufacturer: TIMKEN
Sizes: 38.1x76.2x23.812 (mm)
Weight:: 0.496 (kg)
O-RING
Manufacturer: NQK SF
Sizes: 105.00x111.00x3.00 (mm)
SPA 1557
Manufacturer: ContiTech AG
ПОДШИПНИК ИГОЛЬЧАТЫЙ РАДИАЛЬНЫЙ K90X97X20
Manufacturer: INA-FAG
Weight:: 0.109 (kg)
Подшипник RSF-4922E4
Manufacturer: NSK-RHP
Sizes: 110x150x40 (mm)
Weight:: 2.15 (kg)
SALNIK REINFORCED (TC)
Manufacturer: NQK SF
Sizes: 40x75x10 (mm)
ПОДШИПНИК ШАРИКОВЫЙ ЗАКРЕПЛЯЕМЫЙ GRAE20-NPP-B-FA125.5
Manufacturer: INA-FAG
Sizes: 20x47x31 (mm)
K68 POM(58x63x15)
Manufacturer: KASTAS
Sizes: 58x63x15 (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.
