So I'm going to buy a few ball bearings to have to test rebound. Was wondering if their is a kind that is better or worse? The site has many different kinds. https://bearingballstore.com

I know to get steel but wasn't sure if it mattered which kind. Thanks in advance if it seems like a silly question. A google search came up with nothing, the way I worded it at least.

If you are friends with a mechanic who can give you an old CV joint, you can take one or more of the bearings from that. Just clean off the grease before you pop it in your pocket.

Some people seem to like a 1" bearing, but I have no idea why. Rebound is independent of the size or weight of the bearing dropped.

My uncle has his own shop, actually need to go down and change my fluids out this week so I'll see if he has anything laying around but he cleaned up a good bit of his junk about six months back.

Even if he doesn't have any CV joints or loose bearings, he might have some springs (coil or leaf), torsion bars, axles, etc, etc, etc. Definitely want to be on his good side: a busy mechanic is an unending supply of quality scrap.

Yeah, I talked to him about me wanting to start smithing right before I got my forge and he just kind of scoffed at the idea cause he probably thinks I'm a bit of a lazy bum. Not without reason I guess. Anyway I want to take him down a nice wall hook and show him the little I've done so far and let him know I'm at least semi serious about it and he will be glad to save me some stuff or maybe even give me some tools he might have hidden in the back. His brother was also into blacksmithing, so my other great uncle. So he may have some stuff. I need to get out tomorrow and do a little smithing, it's been about a month since I've done anything. Been a rough one.