CHIARAVALLI
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TORQUE T
T2 =
9550 . P1 .
n2 Nm
T2n ≥T2 . fS Nm
T2 = Output torque
T2n = Rated output torque P1 = Input power
= Transmission efficiency fS = Service factor
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The radial loads is proportional to the requested torque and inversely proportional to the transmission member diameter following this formula.
FR =
2000 . T . T.e.f. N
D
FR = Radial load
T = Nm (Torque)
T.e.f. = Transmission element factor
T.e.f. = 1,15 gear
= 1,4 chain spocket
= 1,75 v-pulley
= 2,5 flat-pulley
D = Transmission element diameter
When the radial loads is not applied on the centre line of the shaft it is necessary to use the following formula.
FRx ≤
FR . a N
(b+x)
3
FR = Radial load on the centre line a,b,x = see tables page 9-46-47-77-78