71908 ACB/HC_L

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Liên hệ
Model: 71908 ACB/HC_L
Hãng sản xuất: SKF
Bảo hành: 12 tháng
Tình trạng: Liên hệ
Dimensions
d 40mm
D 62mm
B 12mm
d1 48.46mm
d2 47.6mm
D2 55.64mm
b 2mm
C1 5.9mm
C2 2.8mm
C3 1.7mm
r1,2min.0.6mm
r3,4min.0.3mm
a 20.2mm
Abutment dimensions
damin.43.2mm
dbmin.43.2mm
Damax.58.8mm
Dbmax.60mm
ramax.0.6mm
rbmax.0.3mm
dn 49.1mm
Calculation data
Basic dynamic load ratingC 6.76kN
Basic static load ratingC0 6.4kN
Fatigue load limitPu 0.166kN
Attainable speed for grease lubrication  32000r/min
Attainable speed for oil-air lubrication  50000r/min
Contact angleα 25°
Ball diameterDw 3.969mm
Number of ballsz 28 
Reference grease quantityGref 1.38cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 31N
Static axial stiffness, preload class A  73N/µm
Preload class BGB 62N
Static axial stiffness, preload class B  92N/µm
Preload class CGC 185N
Static axial stiffness, preload class C  138N/µm
Calculation factors
Calculation factorf 1.06 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.02 
Calculation factorf2C 1.08 
Calculation factorfHC 1.01 
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  0.11kg

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