(4-Pack) Zinc Plated Carbon Steel 5/8” Bore Shaft Collars Sets - Screw Style Bore Shaft Collars with 5/8” Bore Size, 1-1/8 Outer Diameter, and 1/2 Width - Suitable for Automotive and Industrial Use

Too big

They do exactly what theyre supposed to do and were a good value.

Good Buy

Received but 4 of the 8 are missing their set screws.

Very well machined, inner diameter is 5/8 , comes with lock screw.

The ones I got were smaller than 5/8, by 1/32-1/16. Luckily I had a 5/8 drill bit and a drill press with a vise. I was able to bore them out so I could use them, but if youre not that lucky, beware, these are smaller than 5/8. I used a micrometer on the axle shaft i was using, and it came out exactly 5/8 and these would barely get on the ends. It took me 20 minutes to try and get the first one back off. The 5/8 drill bit shaved off quite a bit of metal to get them to work.

Product went on easy. Will see if they stay in place.

I say, I hope they hold because if one comes off, it is going to do me some trouble, whereas I am running 4 wheels on a shaft for hauling my stuff around on a hand truck pulled by my bicycle. Hey, it keeps me humble, but it works. I will definitely use thread grip to assure they stay on. With these I do not have to drill the rod. I still might drill them just a little to make sure they stay in place. With the image; forgive my mess, but I got real sick right when this little project got started, and everything just sat, and got worse as I am just now returning to the land of the living after quite a time of being down, while talking to God, and considering my last days here on earth. We all gotta make an exist inevitably, and dying slowly is the preferred way for me, giving me time to pray, reflect, console, etc, until my last sweet breath. Into thy hands I commend my spirit. Probably a good prayer to pray every day. God rest your souls. Walk with God, and get right with him while you still have life, and breath.

Ive probably bought over 100 of these collars for my mini bike, go kart and trike builds. Add a small amount of lock tight and they never move.

Worked for what I needed