SKF NJ407 bearing

35x100x25

the suspect bearing and sent it to SKF for a rigorous bearing failure analysis. SKF confirmed that the bearing was counter-feit, which nearly caused the “repairs” to be worse than the original problem.



Cylindrical roller bearings NJ407

Bearing number : NJ407

Size (mm) : 35x100x25

Brand : SKF

Bore Diameter (mm) : 35

Outer Diameter (mm) : 100

Width (mm) : 25

Bearing dimensions and specification in SKF catalogue:

d - 35 mm

D - 100 mm

B - 25 mm

C - 25 mm

d1 - 59 mm

r1 min. - 1,5 mm

r2 min. - 1,5 mm

r3 min. - 1,5 mm

r4 min. - 1,5 mm

D1 - 76,1 mm

F - 53 mm

da min. - 48 mm

da max - 51 mm

Da max. - 90 mm

db min - 61 mm

ra max. - 1,5 mm

rb max. - 1,5 mm

S - 1,7 mm

Weight - 1 Kg

Basic dynamic load rating (C) - 76,5 kN

Basic static load rating (C0) - 69,5 kN

Fatigue load limit (Pu) - 9

Reference speed - 8000 r/min

Limiting speed - 9500 r/min

Calculation factor (kr) - 0,15

Bearing NJ407

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