Bearing 31308-DF (NKE)

Tapered roller bearings 31308-DF

Bearing number : 31308-DF

Size (mm) : 40x90x50.5

Brand : NKE

Bore Diameter (mm) : 40

Outer Diameter (mm) : 90

Width (mm) : 50,5

Bearing dimensions and specification in NKE catalogue:

d - 40 mm

D - 90 mm

T - 50,5 mm

B - 23 mm

r3 min. - 1,5 mm

r4 min. - 1,5 mm

r5 min. - 0,6 mm

2B - 46 mm

da max - 51 mm

Da min - 71 mm

Da max. - 81 mm

Weight - 1,58 Kg

Basic dynamic load rating (C) - 138 kN

Basic static load rating (C0) - 164 kN

Limiting speed - 7500 r/min

Calculation factor (e) - 0,83

Calculation factor (Y0) - 0,4

Calculation factor (Y1) - 0,72

Calculation factor (Y2) - 1,21

Designation

Bore Dia, mm

Outer Dia, mm: