Bearing 30256 (NSK)

Tapered roller bearings 30256

Bearing number : 30256

Size (mm) : 280x500x89

Brand : NSK

Bore Diameter (mm) : 280

Outer Diameter (mm) : 500

Width (mm) : 89

Bearing dimensions and specification in NSK catalogue:

d - 280 mm

D - 500 mm

T - 89 mm

B - 80 mm

C - 67 mm

a - 98,5 mm

r min. - 6 mm

r1 min. - 5 mm

da min. - 313 mm

Da min - 436 mm

Da max. - 478 mm

db max. - 339 mm

Db min. - 462 mm

ra max. - 5 mm

rb max. - 4 mm

Weight - 66,3 Kg

Basic dynamic load rating (C) - 1240 kN

Basic static load rating (C0) - 1900 kN

(Grease) Lubrication Speed - 630 r/min

(Oil) Lubrication Speed - 850 r/min

Calculation factor (e) - 0,44

Calculation factor (Y0) - 0,74

Calculation factor (Y1) - 1,4

Designation

Bore Dia, mm

Outer Dia, mm: