Lortone 33B Roller Collar

Not sure if anyone else will ever find this useful but uploading on the off chance that someone does!  

My Lortone 33B rock tumbler was having this issue where the barrels would slide down the rollers and they completely demolished the plastic washer at the end which resulted in a lot of rubbing and some not so fun noises.  I designed this bad boy to attach to the bottom roller and keep the barrels from sliding down.

Of course you can also just prop up the end of the machine and negate this sliding but I found this solution to be 5% more elegant.  

This might be compatible with more tumblers so feel free to try it out if you have something else.  This is based off of a roller diameter of 10.8mm.