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Bearing 7903 A5 (NSK)
Angular contact ball bearings 7903 A5
Bearing number : 7903 A5
Size (mm) : 17x30x7
Brand : NSK
Bore Diameter (mm) : 17
Outer Diameter (mm) : 30
Width (mm) : 7
Bearing dimensions and specification in NSK catalogue:
d - 17 mm
D - 30 mm
B - 7 mm
C - 7 mm
a - 9 mm
r min. - 0,3 mm
r1 min. - 0,15 mm
da min. - 19,5 mm
Da max. - 27,5 mm
ra max. - 0,3 mm
Weight - 0,017 Kg
Basic dynamic load rating (C) - 4,75 kN
Basic static load rating (C0) - 2,8 kN
(Grease) Lubrication Speed - 30 000 r/min
(Oil) Lubrication Speed - 40 000 r/min
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