Cylindrical roller bearings, single row NU 20/670 ECMA/HB1
Bearing number : NU 20/670 ECMA/HB1
Size (mm) : 670x980x180
Brand : SKF
Bore Diameter (mm) : 670
Outer Diameter (mm) : 980
Width (mm) : 180
Bearing dimensions and specification in SKF catalogue:
d - 670 mm
D - 980 mm
B - 180 mm
D1 - - 890 mm
F - 746 mm
r1,2 - min. - 7.5 mm
s - 7 mm
da - min. - 698 mm
da - max. - 736 mm
db - min. - 752 mm
Da - max. - 952 mm
ra - max. - 6 mm
Basic dynamic load rating - C - 5390 kN
Basic static load rating - C0 - 11000 kN
Fatigue load limit - Pu - 750 kN
Reference speed - 500 r/min
Limiting speed - 800 r/min
Calculation factor - kr - 0.14
Mass bearing - 480 kg
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