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
SKF USA Inc. Lansdale, Pennsylvania, PA 194
Company Description by SKF USA Inc. The SKF Group is the leading global supplier of products, customer solutions, and services in the business of rolling bearings and seals. The Group's main competencies include technical support, maintenance services, condition monitoring and training.
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SKF has more than 100 years of experience in various industries and applications, and is the only company that can support key aspects of the sealing system through its knowledge of bearings, seals, lubrication and associated science and technology.
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