Angular contact ball bearings, super-precision 71936 ACD/P4AH1
Bearing number : 71936 ACD/P4AH1
Size (mm) : 180x250x33
Brand : SKF
Bore Diameter (mm) : 180
Outer Diameter (mm) : 250
Width (mm) : 33
Bearing dimensions and specification in SKF catalogue:
d - 180 mm
D - 250 mm
B - 33 mm
d1 - 201.6 mm
d2 - 201.6 mm
D1 - 228.4 mm
K - 0.6 mm
C1 - 8.6 mm
r1,2 - min. - 2 mm
r3,4 - min. - 1 mm
a - 66.8 mm
da - min. - 189 mm
db - min. - 189 mm
Da - max. - 241 mm
Db - max. - 245 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 207.4 mm
Basic dynamic load rating - C - 159 kN
Basic static load rating - C0 - 200 kN
Fatigue load limit - Pu - 5.8 kN
Limiting speed for grease lubrication - 4800 r/min
Limiting speed for oil lubrication - 7000 mm/min
Ball - Dw - 22.225 mm
Ball - z - 27
Gref - 54 cm3
Calculation factor - e - 0.68
Calculation factor - Y2 - 0.87
Calculation factor - Y0 - 0.38
Calculation factor - X2 - 0.41
Calculation factor - Y1 - 0.92
Calculation factor - Y2 - 1.41
Calculation factor - Y0 - 0.76
Calculation factor - X2 - 0.67
Preload class A - GA - 1000 N
Preload class B - GB - 2000 N
Preload class C - GC - 4000 N
Preload class D - GD - 8000 N
Calculation factor - f - 1.25
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.08
Calculation factor - f2D - 1.14
Calculation factor - fHC - 1
Preload class A - 442 N/micron
Preload class B - 581 N/micron
Preload class C - 774 N/micron
Preload class D - 1055 N/micron
Mass bearing - 4.2 kg
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