Angular contact ball bearings, super-precision S71911 ACD/HCP4A
Bearing number : S71911 ACD/HCP4A
Size (mm) : 55x80x13
Brand : SKF
Bore Diameter (mm) : 55
Outer Diameter (mm) : 80
Width (mm) : 13
Bearing dimensions and specification in SKF catalogue:
d - 55 mm
D - 80 mm
B - 13 mm
d1 - 62.7 mm
d2 - 62.7 mm
D2 - 74.57 mm
r1,2 - min. - 1 mm
r3,4 - min. - 0.3 mm
a - 22.4 mm
da - min. - 59.6 mm
da - max. - 62.1 mm
db - min. - 59.6 mm
db - max. - 62.1 mm
Da - max. - 75.4 mm
Db - max. - 78 mm
ra - max. - 1 mm
rb - max. - 0.3 mm
Basic dynamic load rating - C - 18.2 kN
Basic static load rating - C0 - 13.7 kN
Fatigue load limit - Pu - 0.585 kN
Limiting speed for grease lubrication - 17000 r/min
Ball - Dw - 7.938 mm
Ball - z - 23
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 - 120 N
Preload class B - GB - 240 N
Preload class C - GC - 480 N
Preload class D - GD - 960 N
Calculation factor - f - 1.15
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.07
Calculation factor - f2C - 1.12
Calculation factor - f2D - 1.17
Calculation factor - fHC - 1.04
Preload class A - 137 N/micron
Preload class B - 179 N/micron
Preload class C - 234 N/micron
Preload class D - 312 N/micron
Mass bearing - 0.155 kg
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