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Bearing 7903C (KOYO)
Angular contact ball bearings 7903C
Bearing number : 7903C
Size (mm) : 17x30x7
Brand : KOYO
Bore Diameter (mm) : 17
Outer Diameter (mm) : 30
Width (mm) : 7
Bearing dimensions and specification in KOYO catalogue:
d - 17 mm
D - 30 mm
B - 7 mm
C - 7 mm
Angle (α) - 15 °
a - 6.7 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 - 0.016 Kg
(Grease) Lubrication Speed - 36000 r/min
(Oil) Lubrication Speed - 47000 r/min
Calculation factor (f0) - 14.9
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