WT-Prospekt engl NEU (Page 2) - Berriola
WT-Prospekt engl NEU (Page 2) - Berriola
WT-Prospekt engl NEU (Page 2) - Berriola
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10<br />
Gearbox selection<br />
The following is intended as an aid for simple and fast selection of a gearbox for your use in consideration of the mode<br />
of operation. C.d.f. = cyclic duration factor. S.o.t. = switch-on time. Indices: Capital letters = physical gearbox limit values<br />
(nominal value). Small letters = actually applied values (actual value).<br />
Continuous operation<br />
Determination of nom.<br />
load torque on gearbox<br />
output T 2N<br />
T 2 < T 2N<br />
yes<br />
Choose smaller ratio<br />
or larger motor<br />
Choose<br />
larger gearbox<br />
yes<br />
no<br />
no<br />
no<br />
Determination of switch-on time<br />
c.d.f. > 60%<br />
or<br />
s.o.t. > 20 min<br />
Choose<br />
larger gearbox<br />
Determination of gearbox ratio<br />
n 1n < n 1N<br />
yes<br />
Determ. of emergency stop torque *<br />
T 2not < T 2NOT<br />
yes<br />
Determination of bearing load<br />
F r < F R<br />
F a < F A<br />
Choose<br />
larger gearbox<br />
Gearbox selection completed<br />
no<br />
no<br />
Cyclic operation<br />
Determination of no. of cycles<br />
Determ. of reduction factor k*<br />
Determ. of max. acceleration<br />
torque on gearbox output T 2b *<br />
T 2b < T 2B perm.<br />
yes<br />
* T 2Bperm. = T 2B • k<br />
T 2b = J app • ( ) + T Last<br />
* T 2not depending on application<br />
n t
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