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Bearing 7304DB (NTN)
Angular contact ball bearings 7304DB
Bearing number : 7304DB
Size (mm) : 20x52x15
Brand : NTN
Bore Diameter (mm) : 20
Outer Diameter (mm) : 52
Width (mm) : 15
Bearing dimensions and specification in NTN catalogue:
d - 20 mm
D - 52 mm
B - 15 mm
C - 15 mm
ra1 max. - 0,6 mm
Angle (α) - 25 °
a - 18 mm
r min. - 1,1 mm
r1 min. - 0,6 mm
2B - 30 mm
da min. - 27 mm
ra max. - 1 mm
Db max - 47,5 mm
Weight - 0,276 Kg
Basic dynamic load rating (C) - 30,5 kN
Basic static load rating (C0) - 20,8 kN
(Grease) Lubrication Speed - 12 000 r/min
(Oil) Lubrication Speed - 17 000 r/min
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