Bearing RB4948 (NACHI)

Cylindrical roller bearings RB4948

Bearing number : RB4948

Size (mm) : 240x320x80

Brand : NACHI

Bore Diameter (mm) : 240

Outer Diameter (mm) : 320

Width (mm) : 80

Bearing dimensions and specification in NACHI catalogue:

d - 240 mm

D - 320 mm

B - 80 mm

C - 80 mm

d1 - 271.5 mm

r min. - 2.1 mm

D1 - 291 mm

da min. - 253 mm

Da max. - 307 mm

ra max. - 2 mm

Weight - 18.4 Kg

Basic dynamic load rating (C) - 725 kN

Basic static load rating (C0) - 1770 kN

(Grease) Lubrication Speed - 400 r/min

(Oil) Lubrication Speed - 800 r/min

Designation

Bore Dia, mm

Outer Dia, mm: