SKF NN3011KTN/SP bearing

55x90x26

with a large quantity of counterfeit SKF bearings, mill manage-ment asked SKF to conduct an inspection. The mill reported that, after two to three hours of operation, the replacement bearings were performing so poorly, so the mill's maintenance team was forced to shut down the machinery, dismount the bearings, and remount the older bearings.



Cylindrical roller bearings NN 3011 KTN/SP

Bearing number : NN 3011 KTN/SP

Size (mm) : 55x90x26

Brand : SKF

Bore Diameter (mm) : 55

Outer Diameter (mm) : 90

Width (mm) : 26

Bearing dimensions and specification in SKF catalogue:

d - 55 mm

D - 90 mm

B - 26 mm

C - 26 mm

b - – mm

d1 - 68,2 mm

r1 min. - 1,1 mm

r2 min. - 1,1 mm

r3 min. - 0,6 mm

r4 min. - 0,6 mm

E - 81 mm

K - – mm

da min. - 61,5 mm

Da min - 82 mm

Da max. - 83,5 mm

ra max. - 1 mm

S - 1,5 mm

dh - 79,8 mm

Weight - 0,62 Kg

Basic dynamic load rating (C) - 69,3 kN

Basic static load rating (C0) - 96,5 kN

(Grease) Lubrication Speed - 10 000 r/min

(Oil) Lubrication Speed - 12 000 r/min

Fatigue load limit (Pu) - 11,6

Bearing NN 3011 KTN/SP

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