Gearbox inquiry Türkiye

2-Speed Gearbox or 3-Speed Gearbox. Speed-down. Average input 100 N*M and 3000 rpm. Peak input 160 N*M and 4000 rpm.
The product in which this gearbox will go is at the design stage. This means that I can consider the rest of its parameters, which I did not name, in different ways - any of your suggestions.
First order 4-6 pieces.