Angular contact ball bearings, super-precision S71918 ACD/P4A
Bearing number : S71918 ACD/P4A
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
D2 - 117.1 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 34.2 mm
da - min. - 96 mm
da - max. - 100.2 mm
db - min. - 96 mm
db - max. - 100.2 mm
Da - max. - 119 mm
Db - max. - 121 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
Basic dynamic load rating - C - 44.2 kN
Basic static load rating - C0 - 48 kN
Fatigue load limit - Pu - 2 kN
Limiting speed for grease lubrication - 8500 r/min
Ball - Dw - 11.112 mm
Ball - z - 26
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 - 280 N
Preload class B - GB - 560 N
Preload class C - GC - 1120 N
Preload class D - GD - 2240 N
Calculation factor - f - 1.23
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.08
Calculation factor - f2D - 1.14
Calculation factor - fHC - 1
Preload class A - 224 N/micron
Preload class B - 293 N/micron
Preload class C - 392 N/micron
Preload class D - 536 N/micron
Mass bearing - 0.566 kg
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