Roller Exerciser for a Feed Roller Assembly
Original Publication Date: 1987-Aug-01
Included in the Prior Art Database: 2005-Feb-01
A rubber feed roller, which is automatically mounted on a plastic bushing, is exercised after being mounted on the bushing so that it will move parallel to the longitudinal axis of the bushing to reduce the gap between one end of the roller and a shoulder of the bushing to less than the maximum tolerance. When automatically mounting a short rubber feed roller on a plastic bushing which is then automatically mounted on a shaft to form a feed roll shaft assembly, the end of the feed roller is not always positioned from a shoulder of the bushing within the maximum tolerance of 0.040". This is because the inner diameter of the feed roller changes due to temperature and humidity, the coefficient of friction of rubber, and the coefficient of friction of plastic.