Help please The lead screw of a lathe hassingle-start ISO metric trapezoidal threads of 52mm nominal diameter and 8 mm pitch. The screwis required to exert an axial force of 2 kN in orderto drive the tool carriage during turning operation.The thrust is carried on a collar of 100 mm outerdiameter and 60 mm inner diameter: The valuesof coefficient of friction at the screw threads andthe collar are 0.15 and 0.12 respectively. The leadScrew rotates at 30 rpm. Calculate(i) the power required to drive the lead screw;and(ii) the efficiency of the scren:

Answered: Image /qna-images/answer/64cf1891-7b42-4180-aab3-7f471df8ae21.jpg

=ust is carried on a collar of 100 mr er and 60 mm inner diameter. The ficient of friction at the screw threc lar are 0.15 and 0.12 respectively. T otates at 30 rpm. Calculate the power required to drive the lead and the efficiency of the screw.

=ust is carried on a collar of 100 mr er and 60 mm inner diameter. The ficient of friction at the screw threc lar are 0.15 and 0.12 respectively. T otates at 30 rpm. Calculate the power required to drive the lead and the efficiency of the screw.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Help please

The lead screw of a lathe has
single-start ISO metric trapezoidal threads of 52
mm nominal diameter and 8 mm pitch. The screw
is required to exert an axial force of 2 kN in order
to drive the tool carriage during turning operation.
The thrust is carried on a collar of 100 mm outer
diameter and 60 mm inner diameter: The values
of coefficient of friction at the screw threads and
the collar are 0.15 and 0.12 respectively. The lead
Screw rotates at 30 rpm. Calculate
(i) the power required to drive the lead screw;
and
(ii) the efficiency of the scren:

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