Angular contact ball bearings, super-precision 71828 CD/P4
Bearing number : 71828 CD/P4
Size (mm) : 140x175x18
Brand : SKF
Bore Diameter (mm) : 140
Outer Diameter (mm) : 175
Width (mm) : 18
Bearing dimensions and specification in SKF catalogue:
d - 140 mm
D - 175 mm
B - 18 mm
d1 - 151.3 mm
d2 - 151.3 mm
D1 - 163.71 mm
r1,2 - min. - 1.1 mm
r3,4 - min. - 0.6 mm
a - 30.2 mm
da - min. - 146 mm
db - min. - 146 mm
Da - max. - 169 mm
Db - max. - 171.8 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 153.2 mm
Basic dynamic load rating - C - 44.9 kN
Basic static load rating - C0 - 62 kN
Fatigue load limit - Pu - 2.1 kN
Limiting speed for grease lubrication - 6300 r/min
Limiting speed for oil lubrication - 10000 mm/min
Ball - Dw - 10.319 mm
Ball - z - 35
Gref - 9.9 cm3
Calculation factor - f0 - 17.3
Preload class A - GA - 240 N
Preload class B - GB - 720 N
Preload class C - GC - 1440 N
Calculation factor - f - 1.43
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.09
Calculation factor - f2C - 1.16
Calculation factor - fHC - 1
Preload class A - 130 N/micron
Preload class B - 226 N/micron
Preload class C - 336 N/micron
Mass bearing - 0.8 kg
SKF History - skf.c
Agents appointed in Finland, Switzerland, Belgium, Denmark, Austria and Australia. 1909 Subsidiary formed in New York - SKF Ball Bearing Co. A small workshop opened in Paris. Agents appointed in Italy, Argentina and Japan. 1910 Skefko Ball Bearing Co. Ltd in the UK registered. Work started on a plant in Luton.
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