Bearing NA4904

PRODUCTS (Bearing NA4904)

Manufacturer

Number:

Inner diameter:

Outer diameter :

Product type:

Weight:

Bearing NA4904

Inner diameter:: 20 mm
Outer diameter: 25 mm
The size of the width: 37 mm
Weight:: 0.074 kg

Technical specifications

Designation : NA4904

Dimensions, mm : 20x25x37

Producer : ETERNO

Technical data from the manufacturers catalog :

Weight - 0.074 Kg

Dynamic load rating (C) - 17040 kN

Static load rating (C0) - 20400 kN

Outside width (C) - 17mm

Grease lubrication speed - 12800 rev/min

5.33 NBR 70(170,82x05,33)

Manufacturer: KASTAS

O-RING

Manufacturer: NQK SF

Sizes: 13.64x24.30x5.33 (mm)

Bearings KRV19

Manufacturer: INA-FAG

Weight:: 0.032 (kg)

Подшипник 6810DDU

Manufacturer: NSK-RHP

Sizes: 50x65x7 (mm)

Weight:: 0.05 (kg)

Подшипник 6311NR

Manufacturer: NSK-RHP

Sizes: 55x120x29 (mm)

Sizes: 54.60x66.00x5.70 (mm)

K84 PU(307x292x12,9)

Manufacturer: KASTAS

Sizes: 307x292x12,9 (mm)

Подшипник HR30214J

Manufacturer: NSK-RHP

Sizes: 70x125x26.25 (mm)

Weight:: 1.3 (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.