Bearing 4304 ATN9 (SKF)

Double row deep groove ball bearings 4304 ATN9

Bearing number : 4304 ATN9

Size (mm) : 20x52x21

Brand : SKF

Bore Diameter (mm) : 20

Outer Diameter (mm) : 52

Width (mm) : 21

Bearing dimensions and specification in SKF catalogue:

d - 20 mm

D - 52 mm

B - 21 mm

d₁ - - 31.8 mm

D₁ - - 42.2 mm

r_1,2 - min. - 1.1 mm

d_a - min. - 27 mm

D_a - max. - 45 mm

r_a - max. - 1 mm

Basic dynamic load rating - C - 23.4 kN

Basic static load rating - C₀ - 16 kN

Fatigue load limit - P_u - 0.68 kN

Reference speed - 22000 r/min

Limiting speed - 12000 r/min

Calculation factor minimum radial load - k_r - 0.06

Calculation factor - f₀ - 13

Mass bearing - 0.211 kg

Designation

Bore Dia, mm

Outer Dia, mm: