Bearing 78250/78551 (NACHI)

Tapered roller bearings 78250/78551

Bearing number : 78250/78551

Size (mm) : 140.030x63.500x36.512

Brand : NACHI

Bore Diameter (mm) : 140.030

Outer Diameter (mm) : 63.500

Width (mm) : 36.512

Bearing dimensions and specification in NACHI catalogue:

d - 63.500 mm

D - 140.030 mm

T - 36.512 mm

B - 33.236 mm

C - 23.520 mm

a - -8.0 mm

r1 min. - 2.3 mm

r2 min. - 2.3 mm

Weight - 2,425 Kg

Basic dynamic load rating (C) - 145000 kN

Basic static load rating (C0) - 172000 kN

(Grease) Lubrication Speed - 2500 r/min

(Oil) Lubrication Speed - 3500 r/min

Calculation factor (e) - 0.87

Calculation factor (Y0) - 0.38

Calculation factor (Y1) - 0.69

Designation

Bore Dia, mm

Outer Dia, mm: