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Bearing 6921NR (NTN)
Deep groove ball bearings 6921NR
Bearing number : 6921NR
Size (mm) : 105x145x20
Brand : NTN
Bore Diameter (mm) : 105
Outer Diameter (mm) : 145
Width (mm) : 20
Bearing dimensions and specification in NTN catalogue:
d - 105 mm
D - 145 mm
B - 20 mm
C - 20 mm
rn - 0,5 mm
a - 3,3 mm
b - 1,9 mm
f - 1,7 mm
r min. - 1,1 mm
r0 max. - 0,6 mm
D1 - 142,6 mm
D2 - 150,7 mm
da min. - 111,5 mm
da max - 115 mm
Da max. - 138,5 mm
ra max. - 1 mm
Dx - 152 mm
Cy - 4,7 mm
Cz - 1,7 mm
rn - 0,5 mm
Weight - 0,816 Kg
Basic dynamic load rating (C) - 42,5 kN
Basic static load rating (C0) - 42 kN
(Grease) Lubrication Speed - 4 300 r/min
(Oil) Lubrication Speed - 5 100 r/min
Calculation factor (f0) - 16,5
Tags : NTN , 105x145x20
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