Typically when the wrong shear pins are used in these snow blowers (20-28") the brass gear ends up stripping, or in my case splitting in half and knocking out this busing when that happened

I printed out of PETG-CF as that's what I had on hand. It's surrounded by grease so I'm not worried, but as the original author mentioned; nylon would be best.

Measurements - 0.50" ID, 0.75" bushing OD and 1.00" flange OD with a 0.625" height. Size of bevel adjusted to match original.