Operating Characteristics of Gear by Low Elastictity Polyacetal

The demands for noise reduction of plastic gears in OA machines, etc. were increased recently because of the strong demands of lowering noise level in environment. The usual way to reduce the noise of polyacetal gears, mainly used as plastic gears, was dependent on lubricant additives only. We newly developed low elastic polyacetal by modifying the molecule chain itself with adding lubricant. In this study, we investigated the characteristics of the gears using the new polyacetal above mentioned in operation on various conditions, and found out the profitability in characteristics of those gears by comparing with the gears made by Nylon 12 (PA 12), well known as a suitable plastic material for low noise gears.