Angular contact ball bearings, super-precision 71944 CD/P4A
Bearing number : 71944 CD/P4A
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 - 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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SKF Bearing 71944CD/P4A Angular Contact Ball Bearing 71944CD/P4A - SKF Products Made In China, China Trading Company. SKF Bearing 71944CD/P4A Angular Contact Ball Bearing Angular contact ball bearings have raceways in the inner and outer rings that are displaced with respect to each other in the direction of the bearing axis. This means that they are designed to accommodate combined loads, i.e.