Hello! I am in a bit of a predicament. I have wheels that have 5/8 inch bearings. I would like to fit them into a rear axle. My problem is that nobody sells a 1-inch axle to a 5/8 stepdown. I thought I could use a wheel hub, but if fitted on, the axle still can't go through the wheel bearing, therefore nothing prevents it from falling off. I have no welding tools, all wood, and PVC. Please help!