Test with Sew Eurodrive Gearmotors Cont′n
- As these graph results show, the current and temperature of both untreated gearmotors 3 and 4 increase very quickly. After a short time obvious wear noises were observed. After about 15 minutes, the untreated gears 3 and 4 jammed and could not operate further.
- Both the temperature and current increase at a much slower rate in the treated gearmotors 1 and 2. Gearmotors 1 and 2 ran much longer than the untreated gears. After 26 minutes, gear 2 stopped though it resumed after a short cooling period. Gear 1 worked continuously and the test was stopped after 30 minutes when no more changes in temperature or current were observed.
Untreated gear after dry run |
 Rewitec treated gear after |
Summany:
From the SEW Eurodrive gearmotors test. Rewitec Technology has been shown to have a advantage in emergency run conditions without lubrication. The surface of the gear wheels was coated which provided higher endurance. The surface of the untreated gear wheels was extremely worn while the treated gear wheels showed no wear.
Rewitec Technology is an excellent treatment to coat metal surefaces exposed to friction that prevents wear, reduces friction, and provides stable running conditions. The emergency run test show the properties of the Rewitec metal ceramic Nanocoating for protecting machinery.
In terms of efficiency, the application of Rewitec Nanocoating Technology directly impacts the reliability of mechanical equipment. The application of more economical materials coupled with the Rewitec Nanocoating could provide an alternative for lower cost of components
Both treated and untreated gears sets were dismantled and washed of oil with a cleaner. For the test, the gearmotors were run under a nominal load. The temperature, the amperage and the time was recorded until the gears failed. A final evaluation was performed when the gears were dismantled.