SKF 7038ACD/P4A Angular contact ball bearings,SKF 7038 ACD/P4A Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7038 ACD/P4A

7038 ACD/P4A

Dimensions
d 190mm
D 290mm
B 46mm
d1 221.8mm
d2 221.8mm
D1 258.2mm
r1,2min.2.1mm
r3,4min.1.1mm
a 79.2mm
Abutment dimensions
damin.201mm
dbmin.201mm
Damax.279mm
Dbmax.284mm
ramax.2mm
rbmax.1mm
dn 229.7mm
Calculation data
Basic dynamic load ratingC 234kN
Basic static load ratingC0 290kN
Fatigue load limitPu 8kN
Attainable speed for grease lubrication  4300r/min
Attainable speed for oil-air lubrication  6300r/min
Ball diameterDw 30.162mm
Number of ballsz 22 
Reference grease quantityGref 114cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 1450N
Static axial stiffness, preload class A  471N/µm
Preload class BGB 2900N
Static axial stiffness, preload class B  613N/µm
Preload class CGC 5800N
Static axial stiffness, preload class C  809N/µm
Preload class DGD 11600N
Static axial stiffness, preload class D  1088N/µm
Calculation factors
Calculation factorf 1.14 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.02 
Calculation factorf2C 1.05 
Calculation factorf2D 1.08 
Calculation factorfHC 1 
Calculation factore 0.68 
Calculation factor (single, tandem)Y2 0.87 
Calculation factor (single, tandem)Y0 0.38 
Calculation factor (single, tandem)X2 0.41 
Calculation factor (back-to-back, face-to-face)Y1 0.92 
Calculation factor (back-to-back, face-to-face)Y2 1.41 
Calculation factor (back-to-back, face-to-face)Y0 0.76 
Calculation factor (back-to-back, face-to-face)X2 0.67 
Mass
Mass bearing  9.51kg
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Hot number: 13662 626-RSL 6308/VA201 8088 BS2-2224-2RS5/VT143 C 2209 TN9 FSYE 3 1/2-3 FY 2.15/16 DUTF N 28/1400 ECMP NNCF 4936 CV RN-2.5x7.8 BF/G2 SAF 22524 x 4.1/16 T SIKAC 5 M/VZ019 W 628/7-2RZ YAR 216-215-2F

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