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Bearing S71920 ACD/P4A (SKF)
Angular contact ball bearings, super-precision S71920 ACD/P4A
Bearing number : S71920 ACD/P4A
Size (mm) : 100x140x20
Brand : SKF
Bore Diameter (mm) : 100
Outer Diameter (mm) : 140
Width (mm) : 20
Bearing dimensions and specification in SKF catalogue:
d - 100 mm
D - 140 mm
B - 20 mm
d1 - 112.3 mm
d2 - 112.3 mm
D2 - 130.7 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 38.1 mm
da - min. - 106 mm
da - max. - 111.7 mm
db - min. - 106 mm
db - max. - 111.7 mm
Da - max. - 134 mm
Db - max. - 136 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
Basic dynamic load rating - C - 57.2 kN
Basic static load rating - C0 - 63 kN
Fatigue load limit - Pu - 2.4 kN
Limiting speed for grease lubrication - 8000 r/min
Ball - Dw - 12.7 mm
Ball - z - 26
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 - 360 N
Preload class B - GB - 720 N
Preload class C - GC - 1440 N
Preload class D - GD - 2880 N
Calculation factor - f - 1.23
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 - 255 N/micron
Preload class B - 336 N/micron
Preload class C - 449 N/micron
Preload class D - 613 N/micron
Mass bearing - 0.813 kg
Tags : SKF , 100x140x20
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