Question

Consider a gear set to have a velocity ratio of 4: 1. Pinion dia = 80 mm. If somehow the pitch diameter of the pinion is reduced by l0mm, find the overall reduction in space

• A. 30 mm
• B. 40 mm
• C. 50 mm
• D. 60 mm

Answer 1

The correct option is C 50 mm

$\Delta d_P=10mm$

$\therefore \Delta d_G=40m[\because VR=4]$

$\therefore \text{Total reduction}=\Delta d_P+\Delta d_G$

$=10+50=50mm.$