The lead screw of a lathe has a 2.0-in Acme thread, 2½TPI. To drive the tool carriage, this screw must exert an axial force of 600lb. The thrust is carried on the collar 4½-in outside diameter & 214- in in inside diameter. The lead screw revolves 30rpm. Determine: (a) the efficiency of the screw & the collar, assuming f, = 0.15 & fc = 0.10; (b) the power to drive the screw.
The lead screw of a lathe has a 2.0-in Acme thread, 2½TPI. To drive the tool carriage, this screw must exert an axial force of 600lb. The thrust is carried on the collar 4½-in outside diameter & 214- in in inside diameter. The lead screw revolves 30rpm. Determine: (a) the efficiency of the screw & the collar, assuming f, = 0.15 & fc = 0.10; (b) the power to drive 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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![(10) The lead screw of a lathe has a 2.0-in Acme thread, 2%2TPI. To drive the tool carriage, this screw
must exert an axial force of 600lb. The thrust is carried on the collar 4½-in outside diameter & 244-
in in inside diameter. The lead screw revolves 30rpm. Determine:
(a) the efficiency of the screw & the collar, assuming f = 0.15 & fc = 0.10;
(b) the power to drive the screw.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fabdeb333-25d2-4036-aa3d-d4b009c10b18%2Fc82c22c0-278c-409a-b5c8-909f48905575%2Fejoky7j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(10) The lead screw of a lathe has a 2.0-in Acme thread, 2%2TPI. To drive the tool carriage, this screw
must exert an axial force of 600lb. The thrust is carried on the collar 4½-in outside diameter & 244-
in in inside diameter. The lead screw revolves 30rpm. Determine:
(a) the efficiency of the screw & the collar, assuming f = 0.15 & fc = 0.10;
(b) the power to drive the screw.
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