10ER Speed Changer- warped...new sleeve?

[chapmanruss]

Hopefully the sleeve is not damaged/worn so the new oilite bearings will go in okay. As John said a press is not needed. Knock out the old bearings with a rod or similar from the opposite end for each one and insert the new bearings. Before removing and installing the new bearings this would be a good time to take the Floating Pulley Assembly apart and clean it up. Remove any residue from old lubricants. Check to make sure the sleeve and inside of the floating sheave is smooth and free of any damage. These should move freely on each other. Install the new bearings before reassembling the Floating Pulley Assembly. When reassembling use a lightweight oil both on the sleeve for the floating sheave and on the new bearings. Resetting the outer fixed sheaves one side should have the belt at the top edge while the belt almost touches the center of the assembly for the other side. Once the Floating Pulley Assembly is back on the shaft the nut should tighten on the end of the threads at the shoulder of the shaft but not bind the Floating Pulley Assembly.

Occasionally clean off any accumulated residue and re-oil the floating sheave and bearings. Keeping it clean and oiled will have it running for a long time without problems.

[jsburger]

Hopefully the sleeve is not damaged/worn so the new oilite bearings will go in okay. As John said a press is not needed. Knock out the old bearings with a rod or similar from the opposite end for each one and insert the new bearings. Before removing and installing the new bearings this would be a good time to take the Floating Pulley Assembly apart and clean it up. Remove any residue from old lubricants. Check to make sure the sleeve and inside of the floating sheave is smooth and free of any damage. These should move freely on each other. Install the new bearings before reassembling the Floating Pulley Assembly. When reassembling use a lightweight oil both on the sleeve for the floating sheave and on the new bearings. Resetting the outer fixed sheaves one side should have the belt at the top edge while the belt almost touches the center of the assembly for the other side. Once the Floating Pulley Assembly is back on the shaft the nut should tighten on the end of the threads at the shoulder of the shaft but not bind the Floating Pulley Assembly.

Occasionally clean off any accumulated residue and re-oil the floating sheave and bearings. Keeping it clean and oiled will have it running for a long time without problems.

The nut tightening on the end of the shaft is VERY important. Remember, the bushings are not off the shelf. They are machined to fit from a stock item. One set I got had the flanges just 0.001" or so too thick. The nut seemed OK but when run there was just enough friction on the nut from the floating sheave to tighten the nut against the bushing flange and lock up the floating sheave. A few strokes with some sand paper on the bushing flange fixed the problem. I don't know if that set was from Skip Campbell or Hogwinslow. I have had multiple sets from both sellers and only one had the problem

[chapmanruss]

John makes a good point on something to watch out for. If the new oilite bearings are not set in all the way a similar problem will occur. I had a set on one Speed Changer I restored that I didn't get them completely in all the way and yup it locked up.

[Real1shepperd]

The sintered bronze bushings need to be replace. Hard to believe they are worn that bad.

They are not an off the shelf item.

There is an off the shelf item that can be machined to fit. The only two people that have supplied them that I know of are Hogwinslow and Skip Campbell. Hogwinslow used to have a web site but I can't find it now. The email I have for him is Hogwinslow@gmail.com. Skips web site does not currently list them but he used to sell them. His web site is mkctools.com. I would contact him.

Also, any good machine shop should be able to source the bushings and machine them to fit. However, cost might be an issue for you. What ever you do DO NOT through out the speed changer. Someone will want it including me.

Thanks for sharing. I ordered two pairs from Hogwinslow. Previously, Skip has helped me with a tool rest replacement so I did I reach out to Skip last week and have not heard back from him.

Skip doesn't answer emails anymore, but he sure as heck sells stuff off his website. I have one of my outer speed changer sheaves with a broken piece. I'm hoping Skip can help me, but that will require a phone call. And I'll buy new belts from him at the same time.

I bought a speed changer off eBay at a great price, but the center sheave was completely rust frozen. I had it sitting in acetone/ATF for four days and it did not budge. I finally got it pressed free and cleaned out. Parts were missing too....the seller 'forgot' to include them. It came with an outer sheave broken and to make it right, he refunded me about $40, while he looked for another. He had no idea how a speed changer works and kept showing me pics on eBay of the original machine sheave for a replacement. A typical guy who came into a 10ER for nothing and tried to peddle the parts.

And yeah, he's never getting his $40.

Kevin