Angular contact ball bearings, super-precision 7215 ACD/HCP4A
Bearing number : 7215 ACD/HCP4A
Size (mm) : 75x130x25
Brand : SKF
Bore Diameter (mm) : 75
Outer Diameter (mm) : 130
Width (mm) : 25
Bearing dimensions and specification in SKF catalogue:
d - 75 mm
D - 130 mm
B - 25 mm
d1 - 92.9 mm
d2 - 92.9 mm
D1 - 112.1 mm
r1,2 - min. - 1.5 mm
r3,4 - min. - 0.6 mm
a - 36.5 mm
da - min. - 84 mm
db - min. - 84 mm
Da - max. - 121 mm
Db - max. - 125.8 mm
ra - max. - 1.5 mm
rb - max. - 0.6 mm
dn - 96.6 mm
Basic dynamic load rating - C - 68.9 kN
Basic static load rating - C0 - 58.5 kN
Fatigue load limit - Pu - 2.5 kN
Limiting speed for grease lubrication - 11000 r/min
Limiting speed for oil lubrication - 18000 mm/min
Ball - Dw - 15.875 mm
Ball - z - 17
Gref - 14.895 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 - 430 N
Preload class B - GB - 860 N
Preload class C - GC - 1720 N
Preload class D - GD - 3440 N
Calculation factor - f - 1.08
Calculation factor - f1 - 0.99
Calculation factor - f2A - 1
Calculation factor - f2B - 1.01
Calculation factor - f2C - 1.03
Calculation factor - f2D - 1.06
Calculation factor - fHC - 1.01
Preload class A - 234 N/micron
Preload class B - 304 N/micron
Preload class C - 401 N/micron
Preload class D - 540 N/micron
Mass bearing - 1.044 kg
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