Wednesday, May 13, 2009

Sprocket Spacer

Looks good because it all flows together like it was designed for this bike. When I do final assembly this will look even better yet. Some high grade fasteners, stainless safety wire, some real race car/bike stuff.
You can see the spacer snout sticking out here. Will look a lot better when I whack that off a little.

Sprocket spacer after a few hours at the mill. Lots of chips ended up on the floor, but it is hard when working with scrap, to get blanks that are fitted to the final part. I ended up having to space out the sprocket .390". After final fitment, (in the next couple of pics) I see that I need to face off about .050" from the end of the sprocket locating snout on the spacer. That's an easy 5 min task on the lathe.


Found some scrap in the shop that would suffice for machining out a sprocket spacer. Some aircraft grade 6061.


Another view, same spacer.

So here is what the left rear wheel spacer looks like in place. Kind of weird looking but I knew that I was going run a sprocket spacer to get my trans sprocket and wheel sprocket in line with each other while maintaining the rear wheel centered in the chassis. So I designed in the step to match up with the face of the sprocket.