Angular contact ball bearings, super-precision 7012 ACE/HCP4A
Bearing number : 7012 ACE/HCP4A
Size (mm) : 60x95x18
Brand : SKF
Bore Diameter (mm) : 60
Outer Diameter (mm) : 95
Width (mm) : 18
Bearing dimensions and specification in SKF catalogue:
d - 60 mm
D - 95 mm
B - 18 mm
d1 - 72.74 mm
d2 - 70.6 mm
D1 - 82.22 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 27.3 mm
da - min. - 66 mm
db - min. - 66 mm
Da - max. - 89 mm
Db - max. - 90.8 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 74.6 mm
Basic dynamic load rating - C - 16.3 kN
Basic static load rating - C0 - 12.2 kN
Fatigue load limit - Pu - 0.52 kN
Limiting speed for grease lubrication - 22000 r/min
Limiting speed for oil lubrication - 33000 mm/min
Ball - Dw - 7.938 mm
Ball - z - 25
Gref - 5.3 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 - 150 N
Preload class B - GB - 440 N
Preload class C - GC - 870 N
Calculation factor - f - 1.08
Calculation factor - f1 - 0.99
Calculation factor - f2A - 1
Calculation factor - f2B - 1.03
Calculation factor - f2C - 1.06
Calculation factor - fHC - 1.01
Preload class A - 135 N/micron
Preload class B - 200 N/micron
Preload class C - 260 N/micron
Mass bearing - 0.389 kg
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