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Bearing BNT004 (NTN)
Angular contact ball bearings BNT004
Bearing number : BNT004
Size (mm) : 20x42x12
Brand : NTN
Bore Diameter (mm) : 20
Outer Diameter (mm) : 42
Width (mm) : 12
Bearing dimensions and specification in NTN catalogue:
d - 20 mm
D - 42 mm
B - 12 mm
C - 12 mm
a - 10 mm
r min. - 0,6 mm
r1 min. - 0,3 mm
da min. - 24,5 mm
Da max. - 37,5 mm
ra max. - 0,6 mm
Weight - 0,057 Kg
Basic dynamic load rating (C) - 8 kN
Basic static load rating (C0) - 3,95 kN
(Grease) Lubrication Speed - 30 000 r/min
(Oil) Lubrication Speed - 40 000 r/min
Calculation factor (f0) - 9,2
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