Bearing 6988 (NTN)

Deep groove ball bearings 6988

Bearing number : 6988

Size (mm) : 440x600x74

Brand : NTN

Bore Diameter (mm) : 440

Outer Diameter (mm) : 600

Width (mm) : 74

Bearing dimensions and specification in NTN catalogue:

d - 440 mm

D - 600 mm

B - 74 mm

C - 74 mm

r min. - 4 mm

Da max. - 584 mm

db min - 456 mm

ra max. - 3 mm

Weight - 60 Kg

Basic dynamic load rating (C) - 365 kN

Basic static load rating (C0) - 615 kN

(Grease) Lubrication Speed - 890 r/min

(Oil) Lubrication Speed - 1 000 r/min

Calculation factor (f0) - 16,4

Designation

Bore Dia, mm

Outer Dia, mm: