Industrial - X Horizontal - Catalog 08 - 11681810.pdf
Industrial - X Horizontal - Catalog 08 - 11681810.pdf
Industrial - X Horizontal - Catalog 08 - 11681810.pdf
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Project Planning<br />
4 Project planning procedure<br />
4.2.6 Step 6: Selecting the nominal motor power P M<br />
P = P P k2<br />
≥ K1<br />
M η<br />
P M<br />
P K1<br />
P K2<br />
= Nominal motor power [kW]<br />
= Operating power on HSS [kW]<br />
= Operating power on LSS [kW]<br />
see nominal motor power selection<br />
4.2.7 Step 7: Checking the peak load conditions – M K2 zul ; M K2 max<br />
Permitted peak output torque MK2 zul :<br />
Constant load direction<br />
M =<br />
K2 zul<br />
M K2 zul<br />
M N2<br />
F F<br />
[kW]<br />
= Permitted peak output torque [kNm]<br />
= Nominal gear unit torque [kNm]<br />
= Peak load factor<br />
Reversing load rotation:<br />
M =<br />
K2 zul<br />
M K2 zul<br />
M N2<br />
F F<br />
= Permitted peak output torque [kNm]<br />
= Nominal gear unit torque [kNm]<br />
= Peak load factor<br />
Calculate the peak output torque M K2 max :<br />
M =<br />
K2 max<br />
M K2 max<br />
P M<br />
F start<br />
n 2<br />
η<br />
2 x M N2<br />
F F<br />
2 x M N2<br />
F F<br />
P M<br />
x 9.95<br />
x η<br />
n 2<br />
[kNm]<br />
x 0.7<br />
[kNm]<br />
= Peak output torque [kNm]<br />
= Nominal motor power [kW]<br />
= Startup factor<br />
= Output speed [rpm]<br />
= Efficiency<br />
* If F start is not specified, take account of the start factors according to page 46.<br />
Check the gear unit selection:<br />
MK2 max ≤ MK2 zul<br />
x<br />
F* start<br />
[kNm]<br />
48 <strong>Catalog</strong> – Helical and Bevel-Helical Gear Units X.. Series <strong>Horizontal</strong>
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