4304ATN9 bearing 20x52x21

Bearing 4304 ATN9 Bearing 4304 ATN9

Double row deep groove ball bearings 4304 ATN9

Bearing number : 4304 ATN9

Size (mm) : 20x52x21

Bore Diameter (mm) : 20

Outer Diameter (mm) : 52

Width (mm) : 21

Bearing dimensions and specification in catalogue:

d - 20 mm

D - 52 mm

B - 21 mm

d1 - - 31.8 mm

D1 - - 42.2 mm

r1,2 - min. - 1.1 mm

da - min. - 27 mm

Da - max. - 45 mm

ra - max. - 1 mm

Basic dynamic load rating - C - 23.4 kN

Basic static load rating - C0 - 16 kN

Fatigue load limit - Pu - 0.68 kN

Reference speed - 22000 r/min

Limiting speed - 12000 r/min

Calculation factor minimum radial load - kr - 0.06

Calculation factor - f0 - 13

Mass bearing - 0.211 kg

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