Bearing NA4903 (INA)

Needle roller bearings NA4903

Bearing number : NA4903

Size (mm) : 17x30x13

Brand : INA

Bore Diameter (mm) : 17

Outer Diameter (mm) : 30

Width (mm) : 13

Bearing dimensions and specification in INA catalogue:

d - 17 mm

D - 30 mm

B - 13 mm

F - 22 mm

r_min - 0,3 mm

s - 0,5 mm / Axial displacement

m - 37 g / Weight

C_r - 12400 N / Dynamic load rating (radial)

C_0r - 14600 N / Static load rating (radial)

C_ur - 2600 N / Fatigue limit load, radial

n_G - 20000 1/min / Limiting speed

n_B - 10900 1/min / Reference speed

dimension series 49, to DIN 617/ISO 1206

Designation

Bore Dia, mm

Outer Dia, mm: