Bearing NA 4903 (SKF)

Needle roller bearings, with machined rings, with an inner ring NA 4903

Bearing number : NA 4903

Size (mm) : 17x30x13

Brand : SKF

Bore Diameter (mm) : 17

Outer Diameter (mm) : 30

Width (mm) : 13

Bearing dimensions and specification in SKF catalogue:

d - 17 mm

D - 30 mm

B - 13 mm

F - 22 mm

r_1,2 - min. - 0.3 mm

s - 0.5 mm

d_a - min. - 19 mm

D_a - max. - 28 mm

r_a - max. - 0.3 mm

Basic dynamic load rating - C - 11.4 kN

Basic static load rating - C₀ - 16.3 kN

Fatigue load limit - P_u - 2 kN

Reference speed - 18000 r/min

Limiting speed - 20000 r/min

Mass bearing - 0.037 kg

Designation

Bore Dia, mm

Outer Dia, mm: