Composite plastic bushings consist of thermoplastic alloys and solid lubricants with the addition of a fiber matrix for reinforcement. They are made from a wide range of low-cost plastics (such as nylon, UHMW, polyethylene, and Teflon) and more costly, high-performance plastics (such as Vespel, PEEK, and Torlon) for applications involving higher temperatures or greater loads. In general, many of the composite plastics used to manufacture bushings are cheaper than comparable metals. In some instances, they can be up to 25% cheaper.
Despite their generally lower cost and lighter material weight, composite plastic bushings often outperform metal bushings in several ways, such as:
Running longer in harsh environments and operating conditions
Running without lubrication (as is required by metal bushings)
Demonstrating superior corrosion resistance (without lubrication)
Producing less friction (eliminating the need for lubrication)
Exhibiting greater durability and longevity (minimizing the need for repair and replacement)