INA na 6904 bearing details

28 Published by admin Sep 03,2021

NA 6904 bearing is a complete unit consisting of a machined outer ring, a needle roller and cage assembly, and a separable inner ring. It has a space-saving structure due to its small section height.

NA 6904 bearing has large carrying capacity and are suitable for supporting structures with restricted installation dimensions. The journal surface is hardened as the rolling surface. The bearing is fitted into the seat hole with a press fit, eliminating the need for axial positioning. Bearings should be filled with a proper amount of grease before installation. Under normal circumstances, the bearings do not need to be lubricated after assembly.

INA na 6904 bearing details:

d 20 mm Bore diameter
D 37 mm Outside diameter
B 30 mm Width
Cr 40,500 N Basic dynamic load rating, radial
C0r 51,000 N Basic static load rating, radial
Cur 9,200 N Fatigue load limit, radial
nG 16,900 1/min Limiting speed
nG Grease 10,100 1/min Limiting speed for grease lubrication
nϑr 8,900 1/min Reference speed
≈m 137 g Weight
rmin 0.3 mm Minimum chamfer dimension
F 25 mm Raceway diameter inner ring
s 1 mm Axial displacement
Tmin -30 °C Operating temperature min.
Tmax 120 °C Operating temperature max.

INA NA 6904 bearing picturena 6904 bearing

NA 6904 bearing application:

Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Retail, Construction works , Energy & Mining etc

If you need any brand bearings or any models of bearings, please contact me!

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