Question

How the metal tire is fitted on the wheel of bullock cart?

Answer 1

The wooden wheel is soaked or kept wet for an hour or so, not too long or it will swell and the joints come apart. The metal tyre is heated by turning it in a fire using tongs until it has expanded enough to fit over the wooden wheel. It is knocked down around the wooden wheel on the ground using a hardwood block and a four pound hammer. It is then cooled in oil.
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Answer 2

Wooden rim of a Bullock cart is fitted with a steel rim to make it strong and smooth.To ensure a tight fit of steel rim the rim is made slightly smaller in diameter than wooden wheel.Then to fit it first steel rim is heated uniformly along its diameter,which becomes slightly more than that of wooden wheel.The rim is then slipped over the wooden wheel and it is then cooled.On cooling,the rim contracts and makes a tight fit over the wooden wheel