Cylindrical roller bearings, single row NJ 18/630 ECMA/HB1
Bearing number : NJ 18/630 ECMA/HB1
Size (mm) : 630x780x69
Brand : SKF
Bore Diameter (mm) : 630
Outer Diameter (mm) : 780
Width (mm) : 69
Bearing dimensions and specification in SKF catalogue:
d - 630 mm
D - 780 mm
B - 69 mm
d1 - - 682 mm
D1 - - 724 mm
F - 667 mm
r1,2 - min. - 4 mm
s - 1.5 mm
da - min. - 645 mm
da - max. - 662 mm
db - min. - 685 mm
Da - max. - 765 mm
ra - max. - 3 mm
Basic dynamic load rating - C - 1100 kN
Basic static load rating - C0 - 2500 kN
Fatigue load limit - Pu - 183 kN
Reference speed - 800 r/min
Limiting speed - 1000 r/min
Calculation factor - kr - 0.05
Mass bearing - 75 kg
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