Question

The centre to centre distance between two sprockets of chain drives is 600 mm. The chain drive is used to reduce the speed from 160 rpm to 90 rpm. The driving sprocket has 18 teeth and pitch circle diameter of 480 mm. Determine the pitch of the chain and teeth on driven sprocket.

(a) 0.10 m, 46

(b) 0.083 m, 36

(c) 1 m, 26

(d) 1.083 m, 16

This question was posed to me by my college professor while I was bunking the class.

The query is from Mechanical Power Transmission topic in chapter Mechanical Power Transmission of Farm Machinery

Answer 1

Right choice is (b) 0.083 m, 36

Explanation: P=\(\frac{πD}{T}=\frac{π*0.48}{18}\)=0.083m

\(\frac{N1}{N2} = \frac{T2}{T1} \)

T2=\(\frac{180*18}{90}\) = 36 teeth.