The lead screw of a lathe has a 2.0-in single Acme thread, 2½TPI. To drive the tool carriage, thisscrew 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 power to drive the screw in horsepower;(b) the efficiency of the screw & the collar when coefficients of friction are fr = 0.15 & fe =0.10,respectively.

Answer: (a) The power required to drive the screw is 0.111248 hp. (b) The efficiency of the screw…

The lead screw of a lathe has a 2.0-in single Acme thread, 2½TPI. To drive the tool carriage, this screw must exert an axial force of 600lb. The thrust is carried on the collar 42-in outside diameter & 24-in in inside diameter. The lead screw revolves 30rpm. Determine: (a) the power to drive the screw in horsepower; (b) the efficiency of the screw & the collar when coefficients of friction are f = 0.15 & fe =0.10, respectively.

The lead screw of a lathe has a 2.0-in single Acme thread, 2½TPI. To drive the tool carriage, this screw must exert an axial force of 600lb. The thrust is carried on the collar 42-in outside diameter & 24-in in inside diameter. The lead screw revolves 30rpm. Determine: (a) the power to drive the screw in horsepower; (b) the efficiency of the screw & the collar when coefficients of friction are f = 0.15 & fe =0.10, respectively.

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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