Bearings NA4903 RS
Inner diameter:: 17 mm
Outer diameter: 30 mm
The size of the width: 14 mm
Weight:: 0.04 kg
Outer diameter: 30 mm
The size of the width: 14 mm
Weight:: 0.04 kg
Technical specifications
Designation: NA4903 RS
Producer: INA
Technical data from the manufacturers catalog :
Inner diameter (d): 17 mm
Outside diameter (D): 30 mm
Width (B): 14 mm
Weight: 0.04 kg
Limiting speed (rpm): 9000
Зубчатый полиуретановый ремень 32 AT K10
Manufacturer: ContiTech AG

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Manufacturer: NQK SF
Sizes: 80x110.5x12 (mm)

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Manufacturer: ETERNO
Sizes: 55x120x29 (mm)
Weight:: 1.377 (kg)

K17X PTFE/NBR(210x189x8,1)
Manufacturer: KASTAS
Sizes: 210x189x8,1 (mm)

Подшипник NNCL 4914 CV
Manufacturer: SKF
Sizes: 70x100x30 (mm)
Weight:: 0.75 (kg)

Bearing 6307RSP5 (D160307K)
Manufacturer: TMB
Sizes: 35x80x21 (mm)
Weight:: 0.46 (kg)

Bearing 7012CETAP4 (36112KJ-SH)
Manufacturer: TMB
Sizes: 60x95x18 (mm)
Weight:: 0.4 (kg)

Bearings K81276
Manufacturer: INA-FAG
Sizes: 380x520x45 (mm)
Weight:: 17.7 (kg)

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Manufacturer: TMB
Sizes: 70x110x20 (mm)
Weight:: 0.64 (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.