Sprockets that fit the 415 chain

I need help finding a sprocket for this 415 chain. It has to fit the 415 chain and have a small bore. Let me know if you know where to get one because I cant find one anywhere. The sprocket will go on a dc motor to act as a generator. I am having troubles finding a sprocket that will fit. Please help

Also, is there another name for the 415 chain?

 

Anything that fits a 1/2" pitch (bicycle sprockets included) will work, but sprockets for #41 may be too thick. Howe.ver, the only way to tell is to try it