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Plastic gears are serious alternatives to traditional metal gears in a wide variety of applications. The use of plastic gears has expanded from low-power, precision motion transmission into more demanding power transmission applications. As designers push the limits of acceptable plastic gear applications, more is learned about the behavior of plastics in gearing and how to take advantage of their unique characteristics.
Gleason-K2 Plastics eliminates weld lines with no machining.
There are numerous engineering evaluations required to design gear sets for optimum performance with regard to torque capacity, noise, size and cost. How much cost savings and added gear performance is available through optimization? Cost savings of 10% to 30% and 100% added capacity are not unusual. The contrast is more pronounced if the original design was prone to failure and not fit for function.
Ten years ago, most mainstream gear manufacturers didn't even consider plastics as an option, especially in higher power applications.
There is an increasing significance of screw helical and worm gears that combine use of steel and plastics. This is shown by diverse and continuously rising use in the automotive and household appliance industries. The increasing requirements for such gears can be explained by the advantageous qualities of such a material combination in comparison with that of the traditional steel/bronze pairing.
Forty years ago, the plastics industry was practically in its embryonic phase...
Plastics as gear materials represent an interesting development for gearing because they offer high strength-to-weight ratios, ease of manufacture and excellent tribological properties (Refs. 1-7). In particular, there is a sound prospect that plastic gears can be applied for power transmission of up to 10 kW (Ref. 6).
News Items About plastics
1 Fiberfil Acquires Business Unit of DSM Plastics (January 10, 2006)
Fiberfil Engineered Plastics acquired the North American custom compounding unit of DSM Engineering Plastics, effective Dec. 7. Fiber... Read News
2 GW Plastics and ABA-PGT Form Strategic Alliance (July 5, 2007)
GW Plastics and ABA-PGT announced the formation of a global strategic alliance for plastic gear systems and integrated motion transfer sy... Read News
3 Gleason Acquires K2 Plastics (September 7, 2011)
Gleason Corporation has announced it has acquired the assets and business of K2 Plastics, Inc., of Bergen, New York, a producer of precis... Read News