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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 311

11 Drive Dimensioning

11.1 Preselection of the geared motor

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11.1.3 Average daily operating time

The Continuous rated curve of the gearbox is influenced by the average daily operating time.

11.1.4 Additional drive element (K)

Symbol Description

OT Daily operating time

• The operating time is required to determine the correction factors of the thermal speed for

geared motors.

Symbol Description

Type The following designs are available:

• Flat belt

•V-belt

•Chain

• Dedicated gearbox

• Gear wheel

• Toothed belt

 Note!

Whereas toothed belts, chain, and gears have a positive locking and thus present a low

tendency for slip, in the case of a V-belt/flat belt there is a speed difference between the

drive end and the output end (slip).

• This speed difference in general is low and is not considered by the DSD.

 Stop!

If belt drives/chain drives are used, the radial stress of the Lenze gearbox by the preten-

sion is not checked in the DSD. Carry this check out manually!

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