Friction Drive or Friction Engine is a type of motor that instead of a chain uses 2 wheels on the engine to spin the main wheel. This kind of engine is often used on scooters, mainly go-peds, in place of a chain.

An example of this system is in an early Turicum automobile. The friction drive consisted of a flat steel disc coupled to the engine which drove a small leather covered wheel running at right angles to its surface. The small wheel could be moved across the surface of the large disc giving an infinitely variable gear ratio. These type of drives are not very efficient as they create friction which in turn creates heat. This means that they would need a cooler to keep them working efficiently.

In automobilesEdit

Automobiles using this drive system also include:

External linksEdit

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