SKF 71944CD/P4AL Angular contact ball bearings,SKF 71944 CD/P4AL Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71944 CD/P4AL

71944 CD/P4AL

Dimensions
d 220mm
D 300mm
B 38mm
d1 244.7mm
d2 244.7mm
D1 275.3mm
b 3.5mm
C1 20.9mm
C2 7.1mm
C3 5.45mm
r1,2min.2.1mm
r3,4min.1mm
a 54mm
Abutment dimensions
damin.231mm
dbmin.231mm
Damax.289mm
Dbmax.295mm
ramax.2mm
rbmax.1mm
dn 251.4mm
Calculation data
Basic dynamic load ratingC 221kN
Basic static load ratingC0 300kN
Fatigue load limitPu 7.8kN
Attainable speed for grease lubrication  4300r/min
Attainable speed for oil-air lubrication  6300r/min
Ball diameterDw 25.4mm
Number of ballsz 29 
Reference grease quantityGref 84cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 850N
Static axial stiffness, preload class A  224N/µm
Preload class BGB 1700N
Static axial stiffness, preload class B  306N/µm
Preload class CGC 3400N
Static axial stiffness, preload class C  434N/µm
Preload class DGD 6800N
Static axial stiffness, preload class D  635N/µm
Calculation factors
Calculation factorf 1.28 
Calculation factorf1 1 
Calculation factorf2A 1 
Calculation factorf2B 1.04 
Calculation factorf2C 1.09 
Calculation factorf2D 1.15 
Calculation factorfHC 1 
Calculation factorf0 16.5 
Mass
Mass bearing  6.6kg
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Hot number: 30217 330x370x18 HDS2 V 471426 6217-2RS1 67982/67919 99552 BEAM 050140-2RZ FYJ 35 KF H 2324 E K 89322 M PRM 182125 PWM 90105120 SNW 15x2.3/8 SY 15 FM T2EE 040

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