High-precision plastic gears allow tolerances that are often difficult to describe using the "good" described by the US plastics industry (SPI) society. But today most of the experts use the same control unit equipped with a molding machine in a complex window process to control the accuracy of temperature, pressure and other variables on the precision gears. Some gear specialists are using more sophisticated methods of putting them in cavity temperature and pressure sensors to improve consistency and repeatability. Manufacturers also need to use specialized test equipment for the control of the quality of the two-sided gear plastic gear precision roller detection devices, gears and other features of the computer control detector evaluation. However, having the right equipment is just the beginning. Those who try to enter the precision gear industry must also adapt their environment to ensure that they produce gears, each injection, each hole is as close as possible. Due to the production of precision gears, mechanics are often the decisive factors, so they must focus on staff training and process control.

   Plastic gears are susceptible to changes in seasonal temperature, and even opening the forklift doors caused by temperature fluctuations can affect dimensional accuracy of the gears, so mold manufacturers need to strictly control the environmental conditions of the area. Other considerations include stable power supply, polymer, temperature control for dry and humidity control, constant current cooling devices. In some cases the use of automation technology, through repeated action, will change the gear position and place the transfer unit to the cooling mode.