Angular contact ball bearings, super-precision 7011 ACD/HCP4A
Bearing number : 7011 ACD/HCP4A
Size (mm) : 55x90x18
Brand : SKF
Bore Diameter (mm) : 55
Outer Diameter (mm) : 90
Width (mm) : 18
Bearing dimensions and specification in SKF catalogue:
d - 55 mm
D - 90 mm
B - 18 mm
d1 - 65.8 mm
d2 - 65.8 mm
D1 - 79.2 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 26 mm
da - min. - 61 mm
db - min. - 61 mm
Da - max. - 84 mm
Db - max. - 86.8 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 68.1 mm
Basic dynamic load rating - C - 37.1 kN
Basic static load rating - C0 - 31 kN
Fatigue load limit - Pu - 1.3 kN
Limiting speed for grease lubrication - 17000 r/min
Limiting speed for oil lubrication - 26000 mm/min
Ball - Dw - 11.112 mm
Ball - z - 18
Gref - 5.1 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 - 230 N
Preload class B - GB - 460 N
Preload class C - GC - 920 N
Preload class D - GD - 1840 N
Calculation factor - f - 1.1
Calculation factor - f1 - 0.99
Calculation factor - f2A - 1
Calculation factor - f2B - 1.02
Calculation factor - f2C - 1.05
Calculation factor - f2D - 1.08
Calculation factor - fHC - 1.02
Preload class A - 176 N/micron
Preload class B - 230 N/micron
Preload class C - 305 N/micron
Preload class D - 413 N/micron
Mass bearing - 0.317 kg
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