michael whiteman
Well-Known Member
- Local time
- 6:20 AM
- Joined
- Mar 2, 2021
- Messages
- 638
Here is the finished sprocket I made from a 22T chainring, a 5/8" collar and a piece of metal backing. It has .050 runout which is acceptable to me. I'll just leave the chain a little loose.
As you can see this is the largest diameter that will still give me clearance to the fan shroud.
I ran a 5/8" end mill through the square hole in both arms. Then I drilled a deep hole in the shaft and used a longer set screw to secure the sprocket. The arm next to the sprocket will be welded to the shaft. The sealed bearings stop (after being pushed in) on the lip that remained after removing the threads. Just to make sure you
see #12 machine screws threaded into the tube behind the bearing on both sides. A collar on the far side keeps
the shaft in place with no inward force on the bearings. The next post is where things get interesting. Stay tuned.
As you can see this is the largest diameter that will still give me clearance to the fan shroud.
I ran a 5/8" end mill through the square hole in both arms. Then I drilled a deep hole in the shaft and used a longer set screw to secure the sprocket. The arm next to the sprocket will be welded to the shaft. The sealed bearings stop (after being pushed in) on the lip that remained after removing the threads. Just to make sure you
see #12 machine screws threaded into the tube behind the bearing on both sides. A collar on the far side keeps
the shaft in place with no inward force on the bearings. The next post is where things get interesting. Stay tuned.