Allied & ICAR Exam Bank • ALLIED_0111 NAT • 1 Mark

Section 2: Farm Machinery

Machine Design

Subtopic: Design and selection of machine elements – gears, pulleys, chains and sprockets and belts

Question Statement:

A spur gear pinion having 20 teeth meshes with a gear having 60 teeth. If the module is $4\text{ mm}$, the center distance between the two shafts in mm is:

Answer Key:

160

Step-by-Step Solution & Explanation

$d_1 = m \times z_1 = 4 \times 20 = 80\text{ mm}$, $d_2 = m \times z_2 = 4 \times 60 = 240\text{ mm}$. Center distance $C = (80 + 240)/2 = 160\text{ mm}$.
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