INA NA4904-RSR bearing

20x37x18

for a short time 30 °C – temperature difference day/night ≤ 8 K, relative air humidity ≤ 65 %. With standard preservation, bearings can be stored up to 5 years if the said conditions are met. If the permissible storage period is exceeded, it is recommended to check the bearings for its preservation state and corrosion prior to use.



Needle roller bearings NA4904-RSR

Bearing number : NA4904-RSR

Size (mm) : 20x37x18

Brand : INA

Bore Diameter (mm) : 20

Outer Diameter (mm) : 37

Width (mm) : 18

Bearing dimensions and specification in INA catalogue:

d - 20 mm

D - 37 mm

B - 18 mm

C - 17 mm

F - 25 mm

rmin - 0,3 mm

m - 80 g / Weight

Cr - 19500 N / Dynamic load rating (radial)

C0r - 19900 N / Static load rating (radial)

Cur - 3750 N / Fatigue limit load, radial

nG Fett - 7500 1/min / Limiting speed for grease lubrication

dimension series 49, lip seal on one side

Bearing NA4904-RSR

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