Angular contact ball bearings, super-precision 71944 CD/P4AL
Bearing number : 71944 CD/P4AL
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
b - 3.5 mm
C1 - 20.9 mm
C2 - 7.1 mm
C3 - 5.45 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 - 4300 r/min
Limiting speed for oil lubrication - 6300 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 - 1.04
Calculation factor - f2C - 1.09
Calculation factor - f2D - 1.15
Calculation factor - fHC - 1
Preload class A - 224 N/micron
Preload class B - 306 N/micron
Preload class C - 434 N/micron
Preload class D - 635 N/micron
Mass bearing - 6.6 kg
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