We have a BaneBots 20:1 57 Sport with a flat input side plate and a 3/8 hex input shaft with a bearing and a gear on it. It is designed to mate to a pulley reduction to get a lower ratio. I’m not sure if the whole assembly is sold as one unit with the gearbox and the pulley reduction or as just the modified gearbox. Either way would work as we can easily fabricate the pulley setup. We only have one but need two and I can’t for the life of me find another anywhere. Any help finding this part would be greatly appreciated as it’s quite crucial in getting our design to work.
pic of the one we have here