Angular contact ball bearings, super-precision 71944 CD/HCP4A
Bearing number : 71944 CD/HCP4A
Size (mm) : 220x300x38
Brand : SKF
Bore Diameter (mm) : 220
Outer Diameter (mm) : 300
Width (mm) : 38
Bearing dimensions and specification in SKF catalogue:
d - 220 mm
D - 300 mm
B - 38 mm
d1 - 244.7 mm
d2 - 244.7 mm
D1 - 275.3 mm
r1,2 - min. - 2.1 mm
r3,4 - min. - 1 mm
a - 54 mm
da - min. - 231 mm
db - min. - 231 mm
Da - max. - 289 mm
Db - max. - 295 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 251.4 mm
Basic dynamic load rating - C - 221 kN
Basic static load rating - C0 - 300 kN
Fatigue load limit - Pu - 7.8 kN
Limiting speed for grease lubrication - 5300 r/min
Limiting speed for oil lubrication - 7500 mm/min
Ball - Dw - 25.4 mm
Ball - z - 29
Gref - 84 cm3
Calculation factor - f0 - 16.5
Preload class A - GA - 850 N
Preload class B - GB - 1700 N
Preload class C - GC - 3400 N
Preload class D - GD - 6800 N
Calculation factor - f - 1.28
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.07
Calculation factor - f2C - 1.12
Calculation factor - f2D - 1.18
Calculation factor - fHC - 1.04
Preload class A - 248 N/micron
Preload class B - 340 N/micron
Preload class C - 481 N/micron
Preload class D - 705 N/micron
Mass bearing - 5.557 kg
Angular contact ball bearings, super-precision - 71944 CD/
In addition to the information provided on this page, consider what is provided under Angular contact ball bearings.; For information on selecting the appropriate bearing for a given application, and interpreting the data on this page, refer to Principles of bearing selection and application.
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