High Quality Content by WIKIPEDIA articles! A bullwheel is a large wheel on which a rope turns, such as in a chairlift. In that application, the bullwheel that is attached to the prime mover is called the drive bullwheel, with the other known as the return bullwheel. Originally, bullwheel was an oil field term applied to the large wheel that turns the drum upon which the drilling line is wound in percussion drilling. The bullwheel began use in farm implements with the reaper.

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