Bearing NA4909 (KOYO)

Needle roller bearings NA4909

Bearing number : NA4909

Size (mm) : 45x68x22

Brand : KOYO

Bore Diameter (mm) : 45

Outer Diameter (mm) : 68

Width (mm) : 22

Bearing dimensions and specification in KOYO catalogue:

d - 45 mm

Fw - 52 mm

D - 68 mm

B - 22 mm

C - 22 mm

r5 min. - 0,6 mm

S - 2 mm

Weight - 0,291 Kg

Basic dynamic load rating (C) - 46,8 kN

Basic static load rating (C0) - 74,8 kN

(Grease) Lubrication Speed - 8400 r/min

(Oil) Lubrication Speed - 5400 r/min

Designation

Bore Dia, mm

Outer Dia, mm: