... Designed 2.High Strength,Compact Dimension Plastic reducer/gear motor with high quality/(PVC, PP, PE, PA, PC, ABS .etc)Series ... selecting type size and the normal maintenance and use, main components (expect those easily-disabled parts) can last as long as ... lubricating oil, oil seals, and bearings.6.Low NoiseAll key components are finished by precisely machining, accurate assembly, and finally tested ...