Bearing NA 4904 (SKF)

Needle roller bearings, with machined rings, with an inner ring NA 4904

Bearing number : NA 4904

Size (mm) : 20x37x17

Brand : SKF

Bore Diameter (mm) : 20

Outer Diameter (mm) : 37

Width (mm) : 17

Bearing dimensions and specification in SKF catalogue:

d - 20 mm

D - 37 mm

B - 17 mm

F - 25 mm

r_1,2 - min. - 0.3 mm

s - 0.8 mm

d_a - min. - 22 mm

D_a - max. - 35 mm

r_a - max. - 0.3 mm

Basic dynamic load rating - C - 21.6 kN

Basic static load rating - C₀ - 28 kN

Fatigue load limit - P_u - 3.4 kN

Reference speed - 15000 r/min

Limiting speed - 17000 r/min

Mass bearing - 0.0752 kg

Designation

Bore Dia, mm

Outer Dia, mm: