HF-7-604 Page 18
Gear
Diameter
(Inches)
Dimensions
(Inches)
Maximum
Allowable
Moment
(LB-IN)
A B
C
(Max)
8 8.44
3.86 0.50 19500
MAXIMUM ALLOWABLE MOMENT
DRIVE SHAFT ILLUSTRATION
Z Ac Z Ac Z Ac Z Ac Z Ac Z Ac
0.000 1.000 0.250 0.966 0.500 0.926 0.750 0.879 1.000 0.823 1.250 0.751
0.025 0.997 0.275 0.962 0.525 0.922 0.775 0.874 1.025 0.816 1.275 0.742
0.050 0.994 0.300 0.958 0.550 0.917 0.800 0.869 1.050 0.810 1.300 0.734
0.075 0.990 0.325 0.954 0.575 0.913 0.825 0.864 1.075 0.803 1.325 0.725
0.100 0.987 0.350 0.951 0.600 0.908 0.850 0.858 1.100 0.796 1.350 0.716
0.125 0.983 0.375 0.947 0.625 0.904 0.875 0.852 1.125 0.789 1.375 0.706
0.150 0.980 0.400 0.943 0.650 0.899 0.900 0.847 1.150 0.782 1.400 0.697
0.175 0.977 0.425 0.939 0.675 0.894 0.925 0.841 1.175 0.774 1.425 0.687
0.200 0.973 0.450 0.935 0.700 0.889 0.950 0.835 1.200 0.767
0.225 0.969 0.475 0.930 0.725 0.884 0.975 0.829 1.225 0.759
ARC OF CONTACT FACTORS
Belt Pull = 2.5 – Ac
125954 x Hp x S.F.
Ac
D x RPM
Key: Ac
= Arc of Contact Factor (Refer to Arc of Contact Factor Chart above)
Hp
= Blower Horsepower for Operating Conditions
S.F.
= Actual Drive Service Factor
D
= Blower Sheave Pitch Diameter in Inches
RPM
= Blower Sheave Speed
Z
= Large Sheave Pitch Diameter (in) – Small Sheave Pitch Diameter (in)
Sheave Center Distance (in)
CALCULATION OF BELT PULL
Shaft Moment (LB-IN) = Belt Pull x
B + C + Sheave Width
2
CALCULATION OF SHAFT MOMENT
Figure 2- 5
– BELT DRIVE OVERHUNG LOAD CALCULATIONS
Содержание HELIFLOW 8 Series
Страница 13: ...HF 7 604 Page 12 Figure 2 1 HF 825 VERTICAL BLOWER MOUNTING CONFIGURATIONS AND OUTLINE 302HYG800 B Ref Drawing...
Страница 15: ...HF 7 602 Page 14 Figure 2 3 HF 817 VERTICAL BLOWER MOUNTING CONFIGURATIONS AND OUTLINE 304HYG800 B Ref Drawing...
Страница 51: ...HF 7 604 Page 50 SECTION 8 PARTS LIST 18 Parts List Models HYGL_AA and HYGM_AA 304HYG810 B Ref Drawing...
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