Finally got some time this week to play with the drive setup. Its a straight rip off of the 1855 series drive setup. The parts were the original AC drive shaft shortened to 8 inches. Had to mill in a keyway for the sprocket hub. The sprocket is 15T 50P 3/4 hub. I used a flanged bearing to support the loose end. For the Snapper drive shaft I ordered a 3/4 11T coupler and milled in a 3/8 keyway. The sprocket hub is 15T 50P 1.5inch bore. The couping is 1.5OD and its a tight fit. I had an extra bearing carrier from an 1855 so I used it. The frame work will be mounted, with bolts, to the engine mount at the back of the engine. The C clamps are holding it now. I will also have to drill and tap the drive shaft so that I can secure the splined coupler on to it.
I picked up the 3/4 inch bearing I needed a TSC this week. I did not realize that they were a different OD than the orignal bearings used in the drive shaft setup. I was not able to use them, I have to get the correct carriers. I am unsure if the 2 piece drive shaft will work for this. If I use just the 1855 carrier, then the drive shaft has a lot of wobble due to the looseness where the 2 piece drive shaft is coupled. I plan on using the orignal 1650 shaft bearing set up to stableize the 2 pieces. The 1650 bearing is just a few inches away from where the 2 shafts are coupled. I dont know if using 1650 bearing will allow enough movement in the forward shaft to allow for tightening the chain drive.
SP Front shaft Coupling Rear shaft coupling
Edited by coldone, March 03, 2014 - 06:52 PM.