Angular contact ball bearings, super-precision S71902 CD/P4A
Bearing number : S71902 CD/P4A
Size (mm) : 15x28x7
Brand : SKF
Bore Diameter (mm) : 15
Outer Diameter (mm) : 28
Width (mm) : 7
Bearing dimensions and specification in SKF catalogue:
d - 15 mm
D - 28 mm
B - 7 mm
d1 - 18.9 mm
d2 - 18.9 mm
D2 - 25.8 mm
r1,2 - min. - 0.3 mm
r3,4 - min. - 0.2 mm
a - 6.4 mm
da - min. - 17 mm
da - max. - 18.5 mm
db - min. - 17 mm
db - max. - 18.5 mm
Da - max. - 26 mm
Db - max. - 26.6 mm
ra - max. - 0.3 mm
rb - max. - 0.2 mm
Basic dynamic load rating - C - 4 kN
Basic static load rating - C0 - 1.9 kN
Fatigue load limit - Pu - 0.08 kN
Limiting speed for grease lubrication - 56000 r/min
Ball - Dw - 3.969 mm
Ball - z - 13
Calculation factor - f0 - 9.6
Preload class A - GA - 15 N
Preload class B - GB - 30 N
Preload class C - GC - 60 N
Preload class D - GD - 120 N
Calculation factor - f - 1.05
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.09
Calculation factor - f2D - 1.15
Calculation factor - fHC - 1
Preload class A - 16 N/micron
Preload class B - 21 N/micron
Preload class C - 29 N/micron
Preload class D - 41 N/micron
Mass bearing - 0.016 kg
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