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Bearing NNU 4976 BK/SPW33 (SKF)
Cylindrical roller bearings, double row, super-precision NNU 4976 BK/SPW33
Bearing number : NNU 4976 BK/SPW33
Size (mm) : 380x520x140
Brand : SKF
Bore Diameter (mm) : 380
Outer Diameter (mm) : 520
Width (mm) : 140
Bearing dimensions and specification in SKF catalogue:
d - 380 mm
D - 520 mm
B - 140 mm
D1 - 470.8 mm
F - 426 mm
b - 16.7 mm
K - 9 mm
r1,2 - min. - 4 mm
r3,4 - min. - 2.5 mm
s - 5.5 mm
da - min. - 395 mm
da - max. - 421 mm
Da - max. - 505 mm
ra - max. - 3 mm
Basic dynamic load rating - C - 1450 kN
Basic static load rating - C0 - 3600 kN
Fatigue load limit - Pu - 320 kN
Limiting speed for grease lubrication - 1300 r/min
Limiting speed for oil lubrication - 1500 r/min
Mass bearing - 83.5 kg
Tags : SKF , 380x520x140
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