Angular contact ball bearings, super-precision 71911 CE/P4AH1
Bearing number : 71911 CE/P4AH1
Size (mm) : 55x80x13
Brand : SKF
Bore Diameter (mm) : 55
Outer Diameter (mm) : 80
Width (mm) : 13
Bearing dimensions and specification in SKF catalogue:
d - 55 mm
D - 80 mm
B - 13 mm
d1 - 62.75 mm
d2 - 60.7 mm
D1 - 72.3 mm
K - 0.5 mm
C1 - 3.83 mm
r1,2 - min. - 1 mm
r3,4 - min. - 0.3 mm
a - 16.2 mm
da - min. - 59.6 mm
db - min. - 57 mm
Da - max. - 75.4 mm
Db - max. - 78 mm
ra - max. - 1 mm
rb - max. - 0.3 mm
dn - 64.6 mm
Basic dynamic load rating - C - 15.3 kN
Basic static load rating - C0 - 10.6 kN
Fatigue load limit - Pu - 0.455 kN
Limiting speed for grease lubrication - 24000 r/min
Limiting speed for oil lubrication - 36000 mm/min
Ball - Dw - 7.938 mm
Ball - z - 21
Gref - 2.3 cm3
Calculation factor - f0 - 8.4
Preload class A - GA - 83 N
Preload class B - GB - 250 N
Preload class C - GC - 500 N
Calculation factor - f - 1.16
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.08
Calculation factor - fHC - 1
Preload class A - 42 N/micron
Preload class B - 67 N/micron
Preload class C - 92 N/micron
Mass bearing - 0.17 kg
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