The best page to search for CAD files (2D and 3D of different formats) is https://www.traceparts.com
Free registration is needed and after that the CAD files download is possible.
Direct link to Schneider gearboxes is:
https://www.traceparts.com/en/search/traceparts-classification-mechanical-components-power-transmission-angular-gears-gearboxes-planetary-gearboxes?CatalogPath=TRACEPARTS%3ATP01005004004
Feel free to use filter on left side to select the types suitable for you motor, diameter, ration, etc. Picture as an example.
Free registration is needed and after that the CAD files download is possible.
Direct link to Schneider gearboxes is:
https://www.traceparts.com/en/search/traceparts-classification-mechanical-components-power-transmission-angular-gears-gearboxes-planetary-gearboxes?CatalogPath=TRACEPARTS%3ATP01005004004
Feel free to use filter on left side to select the types suitable for you motor, diameter, ration, etc. Picture as an example.