Answered: Q.3: Calculate the power that can be…

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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Transcribed Image Text:= Q.3: Calculate the power that can be transmitted safely by a pair of spur gears with the data given below and calculate also, the bending stresses induced in the two wheels when the pair transmits this power. Number of teeth in the pinion 20, Number of teeth in the gear = 80, Module = 4 mm, and Width of teeth = 60 mm, Tooth profile involute, Allowable bending strength of the material;( 200 MPa, for = 400 r.p.m and pinion) and (160 MPa, for gear), Speed of the pinion Service factor = 0.8. = 20° Q.4: Design a wire rope for an elevator (Miscellaneous hoists) in a building of (60 m) height, for a total load (20 kN). The speed of the elevator is (240 m/min) and the full speed is reached at (10 sec). Taken the grade wire is (110), the safety factor is 2.5 and Er =84 x 103 N/mm².

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