Cams are used to produce regular repeating motions.

More Questions from Gears and Cams

• The motion of the follower as it rises or falls depends on the shape of the curves in the displacement diagram.
• Teeth are spaced by laying out equal angles.
• A worm is a screw with a thread shaped like a rack tooth.
• Working drawings for bevel gears give both the dimensions of the gear blank and the data necessary for cutting the teeth.
• When the follower movement is in a plane parallel to the cam shaft, an irregular cam must be employed.

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