Angular contact ball bearings, super-precision 71917 ACE/HCP4AH1
Bearing number : 71917 ACE/HCP4AH1
Size (mm) : 85x120x18
Brand : SKF
Bore Diameter (mm) : 85
Outer Diameter (mm) : 120
Width (mm) : 18
Bearing dimensions and specification in SKF catalogue:
d - 85 mm
D - 120 mm
B - 18 mm
d1 - 96 mm
d2 - 92.9 mm
D1 - 109.22 mm
K - 0.5 mm
C1 - 5.48 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 34.1 mm
da - min. - 91 mm
db - min. - 88.2 mm
Da - max. - 114 mm
Db - max. - 116.8 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 98.6 mm
Basic dynamic load rating - C - 28.1 kN
Basic static load rating - C0 - 22 kN
Fatigue load limit - Pu - 0.9 kN
Limiting speed for grease lubrication - 16500 r/min
Limiting speed for oil lubrication - 25000 mm/min
Ball - Dw - 11.112 mm
Ball - z - 23
Gref - 7 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 - 255 N
Preload class B - GB - 765 N
Preload class C - GC - 1529 N
Calculation factor - f - 1.16
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.08
Calculation factor - fHC - 1.01
Preload class A - 175 N/micron
Preload class B - 263 N/micron
Preload class C - 346 N/micron
Mass bearing - 0.422 kg
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