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Bearing 7909DT (NTN)
Angular contact ball bearings 7909DT
Bearing number : 7909DT
Size (mm) : 45x68x12
Brand : NTN
Bore Diameter (mm) : 45
Outer Diameter (mm) : 68
Width (mm) : 12
Bearing dimensions and specification in NTN catalogue:
d - 45 mm
D - 68 mm
B - 12 mm
ra1 max. - 0,3 mm
Angle (α) - 25 °
a - 22,5 mm
r min. - 0,6 mm
r1 min. - 0,3 mm
2B - 24 mm
da min. - 49,5 mm
Da max. - 63,5 mm
db min - 49,5 mm
ra max. - 0,6 mm
Db max - 65,5 mm
Weight - 0,3 Kg
Basic dynamic load rating (C) - 25,5 kN
Basic static load rating (C0) - 25,7 kN
(Grease) Lubrication Speed - 8 100 r/min
(Oil) Lubrication Speed - 11 000 r/min
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