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Bearing NK45/20R+IR40×45×20 (NTN)
Needle roller bearings NK45/20R+IR40×45×20
Bearing number : NK45/20R+IR40×45×20
Size (mm) : 40x55x20
Brand : NTN
Bore Diameter (mm) : 40
Outer Diameter (mm) : 55
Width (mm) : 20
Bearing dimensions and specification in NTN catalogue:
d - 40 mm
F - 45 mm
D - 55 mm
B - 20 mm
C - 20 mm
r min. - 0,3 mm
s - 0,5 mm
da min. - 42 mm
Da max. - 53 mm
ra max. - 0,3 mm
Weight - 0,143 Kg
Basic dynamic load rating (C) - 28 kN
Basic static load rating (C0) - 52,5 kN
(Grease) Lubrication Speed - 6 000 r/min
(Oil) Lubrication Speed - 9 000 r/min
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