Gear units are increasingly being made out of different types of plastic. In many cases, this class of materials is a good alternative to steel. However, as the strength of plastics greatly depends on their temperature, determining material properties — which are needed for sizing gears — takes a lot more time and effort than for steel gears.
In KISSsoft, 55 plastics are available for selection for sizing gears (modules Z012-17/Z070). This range of plastics covers properties from VDI 2545 and VDI 2736, 20 SABIC plastics, DSM, Victrex, and newly added material data resulting from a collaboration between the University of Erlangen and German industrial partners. The list includes different types of plastic, such as non-fiber-reinforced polyamide and polyacetal, high-performance plastic with integrated lubricant, and plastics with or without carbon fibers or (long) glass fibers.
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