Spherical roller bearings 231/670BK
Bearing number : 231/670BK
Size (mm) : 670x1090x336
Brand : NTN
Bore Diameter (mm) : 670
Outer Diameter (mm) : 1090
Width (mm) : 336
Bearing dimensions and specification in NTN catalogue:
d - 670 mm
D - 1 090 mm
B - 336 mm
C - 336 mm
r min. - 7,5 mm
da min. - 706 mm
Da max. - 1 054 mm
ra max. - 6 mm
Weight - 1 210 Kg
Basic dynamic load rating (C) - 11 000 kN
Basic static load rating (C0) - 22 800 kN
(Grease) Lubrication Speed - 230 r/min
(Oil) Lubrication Speed - 300 r/min
Calculation factor (e) - 0,3
Calculation factor (Y0) - 2,17
Calculation factor (Y1) - 2,22
Calculation factor (Y2) - 3,3
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