Bearing 31328JR (KOYO)

Tapered roller bearings 31328JR

Bearing number : 31328JR

Size (mm) : 140x300x77

Brand : KOYO

Bore Diameter (mm) : 140

Outer Diameter (mm) : 300

Width (mm) : 77

Bearing dimensions and specification in KOYO catalogue:

d - 140 mm

D - 300 mm

T - 77 mm

B - 70 mm

C - 47 mm

a - 93,8 mm

r min. - 5 mm

r1 min. - 4 mm

r2 min. - 4 mm

da min. - 162 mm

da max - 167 mm

Da min - 254 mm

Da max. - 282 mm

db max. - 167 mm

Db min. - 280 mm

ra max. - 4 mm

rb max. - 3 mm

Db - 280 mm

Weight - 23,3 Kg

Basic dynamic load rating (C) - 674 kN

Basic static load rating (C0) - 865 kN

(Grease) Lubrication Speed - 1100 r/min

(Oil) Lubrication Speed - 1500 r/min

Calculation factor (e) - 0,83

Calculation factor (Y0) - 0,4

Calculation factor (Y1) - 0,73

Designation

Bore Dia, mm

Outer Dia, mm: