Question 1 2 pts A 32 tooth spur gear pinion has a module of 4 mm, rotates at 12

Question

Question 1 2 pts A 32 tooth spur gear pinion has a module of 4 mm, rotates at 1200 rpm, and drives a spur gear at 600 rpm. Determine the theoretical centre distance (mm) between the two gears. Question2 2 pts Using the gear geometry of the two-stage gear reducer shown in Design Problem 6, Question 2, determine the rotational speed of shaft b (in RPM) if the motor rotates at 2010 rpm. Question 3 2 pts The two-stage gear reducer shown in Design Problem 6, Question 2 is driven by a 1 kW motor rotating at 2336 rpm. Determine the torque (Nm) carried by the shaft c assuming 96 % efficiency of each gear pair

Explanation / Answer

1.

Given Tp = 32

m = 4mm

Np = 1200 rpm

NG   = 600 rpm

NG TG = Np Tp

(600 × TG ) = 1200×32

TG = 64

Center distance = m(TG + Tp )/2

=4×(32+64)/2

= 192 mm

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