Gear ratio and machine Secondary two Design & Technology

How many teeth are there? 13

Number of teeth in gear 1 = Number of teeth in gear 2 = If I turn gear 1 three times, Number of turns in gear 2 = Scenario

Scenario 2 Number of teeth in gear 2 = Number of teeth in gear 1 = If I turn gear 1 two times, Number of turns in gear 2 =

Scenario 3 Number of teeth in gear 2 = Number of teeth in gear 1 = If I turn gear 1 three times Number of turns in gear 2 =

Scenario 4 Number of teeth in gear 2 = Number of teeth in gear 1 = If I turn gear 1 one time, Number of turns in gear 2 =

If you turn Gear One 12 times, how many times will Gear 3 turn? 12 x 36 = T 2 x 12 T 2 = x 12 = T 3 x 24 T 3 = 18

Gear ratio Turns of Output Gear Gear Ratio = Turns of Input Gear Teeth of Input Gear Gear Ratio = Teeth of Output Gear Detailed information :

This mechanism is applied in the gearbox provided.

Gear ratio = 38/8 x 42/12 = 16.6 Compound gear

Gear ratio = 38/8 x 42/12 x 42/12 x 42/12 = 203.7