Shafts bending

I have been having problems w/ shafts bending. First one was the shaft that was used to spend the tracks to suck up the cylinders and stuff… Now we have one that is bent on the wheel. Can anyone tell me why these would be bending or messing up?

Are the axles supported on both sides? Try supporting both ends of the axles.

can you post a pic? its alot easier to tell what you need if we can see it

If your intake system is not wide enough, forcing a barrel between two shafts is likely to bend them. We had a similar problem with our intake chains, but we fixed it by mounting the chains a bit further apart.