Dual Falcon 500 Gearbox

[Juniormunk]

Here is a gearbox that I have been working on for the last couple of days I know it has a few flaws however I wanted to put it out there to see what people thought of it. The gearbox consists of 2 Falcon 500’s geared to 15ft/s with a 13.8ft/s actual with 6in wheels.

Dual_Falcon_Gearbox_v28.step (25.6 MB)

[noah.olson]

I like the shape and geometry of the plates.

I’m definitely not the most qualified person to talk about gearboxes, but I’ll try to help.
Here’s what stood out to me.

• You over constrained both reduction shafts by putting 3 bearings on each. You shouldn’t have any problems getting rid of the ones in the middle of the hex shafts.

• One side of the double sprocket is touching the gearbox plate, so you won’t be able to put a chain on it. That’s a simple matter of making the standoffs and shafts longer.

• I didn’t do any calculations, but it looks like you may be able to get rid of the idler gears if you use a larger initial reduction and smaller second reduction.

• On your 1/8 inch plate, it would probably be a good idea to connect the two lower screw holes to the two bearing holes. Also, on the 1/4 inch plates, adding two more connections from the bearing hole to the two mounting holes would give a lot more support without adding much weight.

  
  
  Oh, and I don’t think your shop people will have fun with this .