speedmd
10 MW
Perfect! Yes get the proper gear like the one you listed. Also check surplus center. 3/4 inch center can be bored slightly to fit 20mm shaft and still have plenty of key engagement.
http://www.surpluscenter.com/Power-...ets/13T-3-4-BORE-35P-SPROCKET-1-2413-13-C.axd
Smaller pitch chain like a #219 or #35 will allow more teeth on a smaller diameter sprocket and allow for greater reduction ratios. #35 is common stuff in the states.
Post a video of it running when you have a chance to hook it up so we can see /hear it.
http://www.surpluscenter.com/Power-...ets/13T-3-4-BORE-35P-SPROCKET-1-2413-13-C.axd
Smaller pitch chain like a #219 or #35 will allow more teeth on a smaller diameter sprocket and allow for greater reduction ratios. #35 is common stuff in the states.
Post a video of it running when you have a chance to hook it up so we can see /hear it.