Angular contact ball bearings, super-precision S71908 CD/P4A
Bearing number : S71908 CD/P4A
Size (mm) : 40x62x12
Brand : SKF
Bore Diameter (mm) : 40
Outer Diameter (mm) : 62
Width (mm) : 12
Bearing dimensions and specification in SKF catalogue:
d - 40 mm
D - 62 mm
B - 12 mm
d1 - 47.1 mm
d2 - 47.1 mm
D2 - 57.12 mm
r1,2 - min. - 0.6 mm
r3,4 - min. - 0.3 mm
a - 12.9 mm
da - min. - 43.2 mm
da - max. - 46.6 mm
db - min. - 43.2 mm
db - max. - 46.6 mm
Da - max. - 58.8 mm
Db - max. - 60.6 mm
ra - max. - 0.6 mm
rb - max. - 0.3 mm
Basic dynamic load rating - C - 12.4 kN
Basic static load rating - C0 - 8.5 kN
Fatigue load limit - Pu - 0.36 kN
Limiting speed for grease lubrication - 20000 r/min
Ball - Dw - 6.35 mm
Ball - z - 21
Calculation factor - f0 - 10.4
Preload class A - GA - 45 N
Preload class B - GB - 90 N
Preload class C - GC - 180 N
Preload class D - GD - 360 N
Calculation factor - f - 1.09
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 - 36 N/micron
Preload class B - 48 N/micron
Preload class C - 66 N/micron
Preload class D - 93 N/micron
Mass bearing - 0.113 kg
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