Bearing 12580/12520 (KOYO)

Tapered roller bearings 12580/12520

Bearing number : 12580/12520

Size (mm) : 20.638x49.225x19.845

Brand : KOYO

Bore Diameter (mm) : 20,638

Outer Diameter (mm) : 49,225

Width (mm) : 19,845

Bearing dimensions and specification in KOYO catalogue:

d - 20,638 mm

D - 49,225 mm

T - 19,845 mm

B - 19,845 mm

C - 15,875 mm

a - 12,7 mm

r min. - 1,6 mm

r2 min. - 1,6 mm

da min. - 28,5 mm

Da - 42,5 mm

db min - 26 mm

ra max. - 1,6 mm

rb max. - 1,6 mm

Db - 45,5 mm

Weight - 0,183 Kg

Basic dynamic load rating (C) - 36,4 kN

Basic static load rating (C0) - 37,7 kN

(Grease) Lubrication Speed - 8600 r/min

(Oil) Lubrication Speed - 12000 r/min

Calculation factor (e) - 0,32

Calculation factor (Y0) - 1,02

Calculation factor (Y1) - 1,86

Designation

Bore Dia, mm

Outer Dia, mm: