71905 ACD

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Liên hệ
Model: 71905 ACD
Hãng sản xuất: SKF
Bảo hành: 12 tháng
Tình trạng: Liên hệ
Dimensions
d 25mm
D 42mm
B 9mm
d1 30.6mm
d2 30.6mm
D1 36.4mm
r1,2min.0.3mm
r3,4min.0.2mm
a 12.4mm
Abutment dimensions
damin.27mm
dbmin.27mm
Damax.40mm
Dbmax.40.6mm
ramax.0.3mm
rbmax.0.2mm
dn 31.8mm
Calculation data
Basic dynamic load ratingC 6.37kN
Basic static load ratingC0 3.8kN
Fatigue load limitPu 0.16kN
Attainable speed for grease lubrication  32000r/min
Attainable speed for oil-air lubrication  48000r/min
Contact angleα 25°
Ball diameterDw 4.762mm
Number of ballsz 18 
Reference grease quantityGref 0.54cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 40N
Static axial stiffness, preload class A  60N/µm
Preload class BGB 80N
Static axial stiffness, preload class B  78N/µm
Preload class CGC 160N
Static axial stiffness, preload class C  101N/µm
Preload class DGD 320N
Static axial stiffness, preload class D  134N/µm
Calculation factors
Calculation factorf 1.07 
Calculation factorf1 0.98 
Calculation factorf2A 1 
Calculation factorf2B 1.04 
Calculation factorf2C 1.08 
Calculation factorf2D 1.14 
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  0.042kg

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