Tapered roller bearing 1988R/1922

Bearing number : 1988R/1922

Size (mm) : 28.575x57.15x19.845

Brand : KOYO

Bore Diameter (mm) : 28,575

Outer Diameter (mm) : 57,15

Width (mm) : 19,845

Bearing dimensions and specification in KOYO catalogue:

d - 28,575 mm

D - 57,15 mm

T - 19,845 mm

B - 19,355 mm

C - 15,875 mm

a - 13,9 mm

r min. - 3,6 mm

r2 min. - 1,6 mm

da min. - 39,5 mm

Da - 51 mm

db min - 33,5 mm

ra max. - 3,6 mm

rb max. - 1,6 mm

Db - 53,5 mm

Weight - 0,227 Kg

Basic dynamic load rating (C) - 48,8 kN

Basic static load rating (C0) - 57,1 kN

(Grease) Lubrication Speed - 7000 r/min

(Oil) Lubrication Speed - 9300 r/min

Calculation factor (e) - 0,33

Calculation factor (Y0) - 1

Calculation factor (Y1) - 1,82

Tags :  KOYO , 28.575x57.15x19.845