Bearing 303/28R (KOYO)

Tapered roller bearings 303/28R

Bearing number : 303/28R

Size (mm) : 28x68x19.75

Brand : KOYO

Bore Diameter (mm) : 28

Outer Diameter (mm) : 68

Width (mm) : 19,75

Bearing dimensions and specification in KOYO catalogue:

d - 28 mm

D - 68 mm

T - 19,75 mm

B - 18 mm

C - 16 mm

a - 14,9 mm

r min. - 1,5 mm

r2 min. - 1,5 mm

da min. - 36,5 mm

da max - 38 mm

Da min - 58 mm

Da max. - 59,5 mm

Db min. - 63 mm

ra max. - 1,5 mm

rb max. - 1,5 mm

Weight - 0,345 Kg

Basic dynamic load rating (C) - 53,5 kN

Basic static load rating (C0) - 54 kN

(Grease) Lubrication Speed - 6100 r/min

(Oil) Lubrication Speed - 8200 r/min

Calculation factor (e) - 0,32

Calculation factor (Y0) - 1,04

Calculation factor (Y1) - 1,88

Designation

Bore Dia, mm

Outer Dia, mm: