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Bearing 21308CK (NTN)
Spherical roller bearings 21308CK
Bearing number : 21308CK
Size (mm) : 40x90x23
Brand : NTN
Bore Diameter (mm) : 40
Outer Diameter (mm) : 90
Width (mm) : 23
Bearing dimensions and specification in NTN catalogue:
d - 40 mm
D - 90 mm
B - 23 mm
C - 23 mm
r min. - 1,5 mm
da min. - 48,5 mm
Da max. - 81,5 mm
ra max. - 1,5 mm
Weight - 0,694 Kg
Basic dynamic load rating (C) - 88 kN
Basic static load rating (C0) - 90 kN
(Grease) Lubrication Speed - 4 900 r/min
(Oil) Lubrication Speed - 6 400 r/min
Calculation factor (e) - 0,26
Calculation factor (Y0) - 2,5
Calculation factor (Y1) - 2,55
Calculation factor (Y2) - 3,8
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