Tapered roller bearing 30306DJR

Bearing number : 30306DJR

Size (mm) : 30x72x20.75

Brand : KOYO

Bore Diameter (mm) : 30

Outer Diameter (mm) : 72

Width (mm) : 20,75

Bearing dimensions and specification in KOYO catalogue:

d - 30 mm

D - 72 mm

T - 20,75 mm

B - 19 mm

C - 14 mm

a - 23,7 mm

r min. - 1,5 mm

r2 min. - 1,5 mm

da min. - 38,5 mm

da max - 40 mm

Da min - 55 mm

Da max. - 63,5 mm

Db min. - 68 mm

ra max. - 1,5 mm

rb max. - 1,5 mm

Weight - 0,4 Kg

Basic dynamic load rating (C) - 50,9 kN

Basic static load rating (C0) - 54,9 kN

(Grease) Lubrication Speed - 4900 r/min

(Oil) Lubrication Speed - 6800 r/min

Calculation factor (e) - 0,83

Calculation factor (Y0) - 0,4

Calculation factor (Y1) - 0,73

Tags :  KOYO , 30x72x20.75