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A pair of enclosed spur gears have z1 =20, z2 =80, m = 3 mm and...

A pair of enclosed spur gears have z1 =20, z2 =80, m = 3 mm and face width factor of ?d =1.0. The pinion rotates at n1 =970 rpm. The allowable contact stress of
the pinion and gear are [?H1] = 700 MPa, [?H2] = 500 MPa, respectively. The load
factor is K =1.5, zone factor is ZH =2.5, elastic coefficient is ZE =189.8 MPa1/2.
Determine the power that can be transmitted by tooth surface contact strength
analysis.

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Answer #1

In question design by weal strength of I The giren ger Sw Q do bk Uut 1 0 0 3 2 2 zg 2 2x 80 160 Das 160 106 30+20² YE dpa meof the pinion & Foumpa and for gear = 500 mpa . 80 gear is weak, so we design paner outpurt Ale to gear: gear and Wpinian (win that question we design according to gear failure because it have less strenght.

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