Ring on a Rotating Shaft

A "ring oiler" is a simple mechanical device that is traditionally used for lubrication of bearings. In this machine, a shaft is rotated with a motor. A ring is mounted on the shaft and co-rotates with the shaft. As it rotates it also moves sideways along the length of the shaft. The ring is large enough that it dips in a reservoir of oil, bringing oil up to the shaft and lubricating the shaft and the bearings. We will not use oil as our purpose is not to lubricate, rather investigate the strange mechanical motion of the ring as it roto-translates along the shaft.