Angular contact ball bearings, super-precision 71918 CD/HCP4AH1
Bearing number : 71918 CD/HCP4AH1
Size (mm) : 90x125x18
Brand : SKF
Bore Diameter (mm) : 90
Outer Diameter (mm) : 125
Width (mm) : 18
Bearing dimensions and specification in SKF catalogue:
d - 90 mm
D - 125 mm
B - 18 mm
d1 - 100.8 mm
d2 - 100.8 mm
D1 - 114.2 mm
K - 0.5 mm
C1 - 5.2 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 23.5 mm
da - min. - 96 mm
db - min. - 96 mm
Da - max. - 119 mm
Db - max. - 121 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 103.3 mm
Basic dynamic load rating - C - 47.5 kN
Basic static load rating - C0 - 51 kN
Fatigue load limit - Pu - 2.1 kN
Limiting speed for grease lubrication - 13000 r/min
Limiting speed for oil lubrication - 19000 mm/min
Ball - Dw - 11.112 mm
Ball - z - 26
Gref - 7.5 cm3
Calculation factor - f0 - 16.3
Preload class A - GA - 180 N
Preload class B - GB - 360 N
Preload class C - GC - 720 N
Preload class D - GD - 1440 N
Calculation factor - f - 1.23
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.07
Calculation factor - f2C - 1.12
Calculation factor - f2D - 1.18
Calculation factor - fHC - 1.04
Preload class A - 104 N/micron
Preload class B - 143 N/micron
Preload class C - 203 N/micron
Preload class D - 297 N/micron
Mass bearing - 0.472 kg
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