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Bearing NRT 180 B (SKF)
Axial-radial cylindrical roller bearings, super-precision NRT 180 B
Bearing number : NRT 180 B
Size (mm) : 180x280x43
Brand : SKF
Bore Diameter (mm) : 180
Outer Diameter (mm) : 280
Width (mm) : 43
Bearing dimensions and specification in SKF catalogue:
d - 180 mm
D - 280 mm
H - 43 mm
d1 - 244 mm
C - 15 mm
H1 - 29 mm
J - 194 mm
J1 - 260 mm
H - 7 mm
N1 - 11 mm
N2 - 7 mm
a - 6.2 mm
r1 - min. - 0.6 mm
r2 - min. - 0.3 mm
Basic dynamic load rating, radial direction - C - 89.7 kN
Basic static load rating, radial direction - C0 - 236 kN
Basic dynamic load rating, axial direction - C - 80 kN
Basic static load rating, axial direction - C0 - 560 kN
Limiting speed for grease lubrication - 190 r/min
Limiting speed for oil lubrication - 380 mm/min
Axial Preload - 2.6 N
Axial unloading force - 5.6 kN
Frictional moment - CRL - 13 N·m
axial stiffness - 10.6 N/micron
radial stiffness - 5.8 N/micron
Moment stiffness - 54000 kN·m/mrad
Mass bearing - 7.5 kg
Guideline diameter - 400 mm
Size - G - M8
Number of bolts - 3
Angle between bolts - 120 °
Size bolts - M6
Pitch - &alfa; - 7.5 °
Number of bolts - 45
Number of bolts omitted at removal thread position - 3, 120° apart
Size bolts - M6
Pitch - &alfa; - 7.5 °
Number of bolts - 46
Number of bolts omitted at retaining bolts position - 2, 180° apart
Tightening torque - 14 N·m
Size - M6
Number of bolts - 2
Tags : SKF , 180x280x43
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