Angular contact ball bearings, super-precision 71918 ACE/HCP4A
Bearing number : 71918 ACE/HCP4A
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 - 101 mm
d2 - 97.9 mm
D1 - 114.22 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 35.9 mm
da - min. - 96 mm
db - min. - 93.2 mm
Da - max. - 119 mm
Db - max. - 121.8 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 103.5 mm
Basic dynamic load rating - C - 28.6 kN
Basic static load rating - C0 - 23.2 kN
Fatigue load limit - Pu - 0.915 kN
Limiting speed for grease lubrication - 15500 r/min
Limiting speed for oil lubrication - 24000 mm/min
Ball - Dw - 11.112 mm
Ball - z - 24
Gref - 7 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 - 260 N
Preload class B - GB - 780 N
Preload class C - GC - 1560 N
Calculation factor - f - 1.19
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.08
Calculation factor - fHC - 1.01
Preload class A - 182 N/micron
Preload class B - 274 N/micron
Preload class C - 360 N/micron
Mass bearing - 0.459 kg
SKF South Africa's Authorised Distributor Network .
“The benefits of being an authorised SKF Distributor,” says Dailly, “are that SKF's state-of-the-art supply chain management processes and systems enable distributors to optimise their own practices.” SKF's large skilled team have the local resources to design and deliver complex solutions across the SKF technology platforms.
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