Angular contact ball bearings, super-precision 71920 CE/HCP4AL
Bearing number : 71920 CE/HCP4AL
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 - 112.4 mm
d2 - 109 mm
D1 - 127.51 mm
b - 2.3 mm
C1 - 10.9 mm
C2 - 3 mm
C3 - 3.3 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 26.7 mm
da - min. - 106 mm
db - min. - 103.2 mm
Da - max. - 134 mm
Db - max. - 136.8 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 115.4 mm
Basic dynamic load rating - C - 39 kN
Basic static load rating - C0 - 31.5 kN
Fatigue load limit - Pu - 1.2 kN
Limiting speed for grease lubrication - 15500 r/min
Limiting speed for oil lubrication - 24000 mm/min
Ball - Dw - 12.7 mm
Ball - z - 24
Gref - 10 cm3
Calculation factor - f0 - 8.5
Preload class A - GA - 208 N
Preload class B - GB - 624 N
Preload class C - GC - 1250 N
Calculation factor - f - 1.18
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.05
Calculation factor - f2C - 1.09
Calculation factor - fHC - 1.01
Preload class A - 81 N/micron
Preload class B - 129 N/micron
Preload class C - 178 N/micron
Mass bearing - 0.649 kg
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