7004 ACD/HC

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Liên hệ
Model: 7004 ACD/HC
Hãng sản xuất: SKF
Bảo hành: 12 tháng
Tình trạng: Liên hệ
Dimensions
d 20mm
D 42mm
B 12mm
d1 27.1mm
d2 27.1mm
D1 34.8mm
r1,2min.0.6mm
r3,4min.0.3mm
a 13.3mm
Abutment dimensions
damin.23.2mm
dbmin.23.2mm
Damax.38.8mm
Dbmax.40mm
ramax.0.6mm
rbmax.0.3mm
dn 28.4mm
Calculation data
Basic dynamic load ratingC 8.32kN
Basic static load ratingC0 4.15kN
Fatigue load limitPu 0.173kN
Attainable speed for grease lubrication  45000r/min
Attainable speed for oil-air lubrication  70000r/min
Contact angleα 25°
Ball diameterDw 6.35mm
Number of ballsz 12 
Reference grease quantityGref 0.9cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 50N
Static axial stiffness, preload class A  60N/µm
Preload class BGB 100N
Static axial stiffness, preload class B  77N/µm
Preload class CGC 200N
Static axial stiffness, preload class C  100N/µm
Preload class DGD 400N
Static axial stiffness, preload class D  133N/µm
Calculation factors
Calculation factorf 1.03 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.02 
Calculation factorf2C 1.05 
Calculation factorf2D 1.08 
Calculation factorfHC 1.02 
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  0.06kg

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