A pair of spur gears with a normal pressure angle of 20°, a module of 3 mm and a face width of 35 mm have been used to transmit a power from a motor. The gears are of typical commercial quality with quality numbers (Q.) of 5, the overload factor is 1.25, the load-distribution factor is 1.3 and the rim thickness factor is 1.0. The 20-teeth pinion is made of Grade 1 through hardened steel to hardness = 2XY HB and the 1XY-teeth gear is made of Grade 1 through hardened steel to hardness %3! =160 HB. The pinion will rotate at 17XY rpm.

A pair of spur gears with a normal pressure angle of 20°, a module of 3 mm and a face width of 35 mm have been used to transmit a power from a motor. The gears are of typical commercial quality with quality numbers (Q.) of 5, the overload factor is 1.25, the load-distribution factor is 1.3 and the rim thickness factor is 1.0. The 20-teeth pinion is made of Grade 1 through hardened steel to hardness = 2XY HB and the 1XY-teeth gear is made of Grade 1 through hardened steel to hardness %3! =160 HB. The pinion will rotate at 17XY rpm.

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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Concept explainers

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

Question

XY=11

By examine the parameters given, evaluate the maximum power-transmitting capacity, based on AGMA bending strength for both gears.

A pair of spur gears with a normal pressure angle of 20°, a module of 3 mm and a face width of 35
mm have been used to transmit a power from a motor. The gears are of typical commercial quality
with quality numbers (Q.) of 5, the overload factor is 1.25, the load-distribution factor is 1.3 and the
rim thickness factor is 1.0. The 20-teeth pinion is made of Grade 1 through hardened steel to
hardness = 2XY Hs and the 1XY-teeth gear is made of Grade 1 through hardened steel to hardness
=160 HB. The pinion will rotate at 17XY rpm.
Assume:
A pinion life of 10 cycles
a reliability of 99.9%
A safety factor of 2.

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