Angular contact ball bearings, super-precision 719/9 ACE/HCP4A
Bearing number : 719/9 ACE/HCP4A
Size (mm) : 9x20x6
Brand : SKF
Bore Diameter (mm) : 9
Outer Diameter (mm) : 20
Width (mm) : 6
Bearing dimensions and specification in SKF catalogue:
d - 9 mm
D - 20 mm
B - 6 mm
d1 - 12.5 mm
d2 - 11.76 mm
D1 - 16.52 mm
r1,2 - min. - 0.3 mm
r3,4 - min. - 0.15 mm
a - 6.9 mm
da - min. - 11 mm
db - min. - 11 mm
Da - max. - 18 mm
Db - max. - 19.2 mm
ra - max. - 0.3 mm
rb - max. - 0.15 mm
dn - 13.3 mm
Basic dynamic load rating - C - 2 kN
Basic static load rating - C0 - 0.765 kN
Fatigue load limit - Pu - 0.032 kN
Limiting speed for grease lubrication - 120000 r/min
Limiting speed for oil lubrication - 180000 mm/min
Ball - Dw - 3.175 mm
Ball - z - 11
Gref - 0.09 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 - 17 N
Preload class B - GB - 50 N
Preload class C - GC - 100 N
Calculation factor - f - 1.03
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 - 28 N/micron
Preload class B - 41 N/micron
Preload class C - 54 N/micron
Mass bearing - 0.007 kg
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