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101

7Applications

7.14 Synchronous drive - single roll

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

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Torque of the application

[7-152] Equation 5: Torque of the application

 Tip!

Further equations to complete the calculations required for an application can be found in

the chapter "Basic calculations

". ( 68)

7.14.1.1 Symbols used

7.14.2 Data for the entry

7.14.2.1 Roll diameter

App

sds

sum

α⋅++=

Symbol Description Dimension unit

d Diameter of the drive roll mm

Tension on input side (only positive tensile forces possible) N

out

Tension on output side (only positive tensile forces possible) N

J Moment of inertia of the drive roll kgm

Moment of inertia of the effective mass of the material to be conveyed kgm

sum

Total moment of inertia (rolls/material) kgm

S Safety coefficient for the static friction %

App

Required torque of the application Nm

Friction torque Nm

sds

Stationary torque Nm

v Speed of the material m/min

α Angle of wrap °

Brg

Mechanical efficiency of the roll bearing

Coefficient of friction of the roll surface

Symbol Description

d Outside diameter of drive roll

1 2 ... 153 154 155 156 157 158 159 160 161 162 163 ... 495 496

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