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Jay Cutright
01-22-2016, 10:18 PM
Anyone know where to get a good quality Thrust bearing to replace the felt washer?
I was bidding on one on eBay and got outbid.
I'm going to take the felt washer into a bearing shop and see what they come up with. I thought a post here might generate a part number.

Dan H
01-23-2016, 06:36 AM
Jay try going to Practical Machinist they have a Southbend group that probably can help

Earl Horgeshime
01-23-2016, 11:00 AM
Anyone know where to get a good quality Thrust bearing to replace the felt washer?
I was bidding on one on eBay and got outbid.
I'm going to take the felt washer into a bearing shop and see what they come up with. I thought a post here might generate a part number.

I did that mod to my 10L several years ago. I had to cut the cast iron takeup nut about 75 thou to get the bearing to fit. I think that the bearing sandwich was about .170 thick. I got mine from mcmaster carr. I cant find the bearing info but there was a thread on the hobby machinist web site about the mod. Yahoo southbend group has a file about the mod as well.
It is a very worthwile change.

Jay Cutright
01-23-2016, 11:19 AM
Here's the one I found on eBay. I got outbid on it. The seller sent a message and said he has more but he's on the east coast and I would like to have this done before February.

Zebra13
01-23-2016, 11:50 AM
Gents,

I picked up my Heavy 10 a couple of weeks ago, so I am not completely fluent on it yet. Please do tell what exactly your doing and why you're doing it for the newbie. I'd appreciate it.

Thanks,
Justin

Jay Cutright
01-23-2016, 12:00 PM
Gents,

I picked up my Heavy 10 a couple of weeks ago, so I am not completely fluent on it yet. Please do tell what exactly your doing and why you're doing it for the newbie. I'd appreciate it.

Thanks,
Justin

There is a felt washer on the outboard end of the spindle that some have replaced with a thin roller bearing to eliminate end play.
Look between the lock nut and the bearing cap. The felt washer has a tab sticking out that locates into a hole in the casting to keep it from turning with the spindle. The washer on my lathe was turning and I'm not going to replace it with felt when there's a bearing available.

Zebra13
01-23-2016, 01:11 PM
There is a felt washer on the outboard end of the spindle that some have replaced with a thin roller bearing to eliminate end play.
Look between the lock nut and the bearing cap. The felt washer has a tab sticking out that locates into a hole in the casting to keep it from turning with the spindle. The washer on my lathe was turning and I'm not going to replace it with felt when there's a bearing available.

Jay,

Looking between the lock nut and bearing cap on my lathe, I see a thin washer, maybe .025 or so thick, that is a wee bigger in diameter than my lock nut. It doesn't look like felt to me, and I don't see a tab sticking out. My Heavy 10 renovation guide makes reference to a washer in this location but doesn't say anything about it being felt. Is this the washer you are referring to?

Per my book, South Bend went to a thrust bearing set-up in this location at some point.

Justin

Jay Cutright
01-23-2016, 01:49 PM
Jay,

Looking between the lock nut and bearing cap on my lathe, I see a thin washer, maybe .025 or so thick, that is a wee bigger in diameter than my lock nut. It doesn't look like felt to me, and I don't see a tab sticking out. My Heavy 10 renovation guide makes reference to a washer in this location but doesn't say anything about it being felt. Is this the washer you are referring to?

Per my book, South Bend went to a thrust bearing set-up in this location at some point.

Justin

I think you are looking at the right part. I said it all backwards, the tab sticks through the washer and into the lock nut and so the felt turns with the spindle. There's a little brass pin attached to it.
Mine was stuck to the casting. Someone most likely over tightened it trying to eliminate end play then after years in storage it was stuck on there like a gasket.

Jay Cutright
01-23-2016, 02:10 PM
Justin, whatever you do, don't mistake me for an expert on these machines. :) I am learning my way around a heavy 10 by taking it apart and putting it back together. I have never ran one. I hope I will some time soon!

Zebra13
01-23-2016, 02:34 PM
I think you are looking at the right part. I said it all backwards, the tab sticks through the washer and into the lock nut and so the felt turns with the spindle. There's a little brass pin attached to it.
Mine was stuck to the casting. Someone most likely over tightened it trying to eliminate end play then after years in storage it was stuck on there like a gasket.

Jay,

Bingo...that looks like it. I can't figure out why I can't find a reference to the felt in my guide...

I've got the carriage and cross-slide off of mine for cleaning. I wasn't going to take the carriage apart...until a taper pin fell out of it from somewhere! I guess I'll be taking the carriage apart after all...

I'll probably go into the headstock, so I'll be paying attention to this thread. If somebody comes up with the part numbers for the bearing, please post it for me.

Thanks again, Jay.

Justin

Earl Horgeshime
01-23-2016, 03:08 PM
Here is the pdf that I used to modify mine. I got the bearings from Mcmaster. (they were quicker and cheaper than MSC)

That nut is cast iron. Be careful cutting it. I purchased a spare from Ted (latheman2). Very expensive but the only one available at the time. You need a second lathe or a friend with one to cut the nut down.

The pdf is on the Southbend Yahoo group files section. I believe I got it from the guy that originally made the pdf. (Eric)



It appears that I cannot get the pdf attached. forward me an email address and I will send it to you.

coyotechet
01-23-2016, 03:25 PM
Go to Mc Master-Carr type in Thrust Bearing in the search bar. Will bring up all types of trust bearing. When removing the spindle gear be sure to put it back on the same way to keep the gear mash the same.

Chet

17332

Earl Horgeshime
01-23-2016, 04:54 PM
one thing I forgot to mention is that the bearings are different for the 9 inch and 10L lathes - be sure to get the correct one. You can use the part number in the pdf to cross reference for different manufacturers.

Jay Cutright
01-23-2016, 05:08 PM
one thing I forgot to mention is that the bearings are different for the 9 inch and 10L lathes - be sure to get the correct one. You can use the part number in the pdf to cross reference for different manufacturers.

They are different between the 10L and 10K.

Jay Cutright
01-23-2016, 09:59 PM
Thanks Earl & Chet.
I can buy those bearings at Coldwell Bearing in Terre Haute Indiana but I don't want the 3 piece bearing.
The fellar on eBay relisted more bearings for sale at a buy now price and I bought one this evening. I think he has found a better part and it doesn't require any modification to the nut to use it. I will find out as soon as they dig out enough to run the mail again.
I will post the item number for anyone else wanting a bearing and save you the trouble of searching for it.
Item number 172074384890

Pete Wass
01-24-2016, 05:50 PM
did you leave between the new thrust bearing and rear bearing cap, if any? Do you use grease or oil for lubricating the ball bearing? How much advantage do you think you have gained, washer vs. ball bearing? It's pretty easy to stop the spindle by tightening the, nut/ washer too tight, I found out years ago.

Thanks,

Pete

Jay Cutright
01-24-2016, 06:15 PM
did you leave between the new thrust bearing and rear bearing cap, if any? Do you use grease or oil for lubricating the ball bearing? How much advantage do you think you have gained, washer vs. ball bearing? It's pretty easy to stop the spindle by tightening the, nut/ washer too tight, I found out years ago.

Thanks,

Pete

I haven't gotten my bearing yet Pete. It will be a roller bearing. It will run in oil, adjusted to just barely take up end play, any amount to tight will be obvious when the bearing cap heats up. That's all I know about it right now. Some say it makes a big difference in quality and the accuracy of face cuts. I need a new fiber washer so its time to put the bearing in its place.

coyotechet
01-24-2016, 06:26 PM
The Fiber Washer at the rear end of the Heavy 10 is not really a thrust bearing it is just a fiber washer between the head stock casting and the take up nut. The thrust bearing is under the rear head stock cover and it is a three piece heavy duty thrust ball bearing type. The fiber washer is self lubing from the spindle oil and will never wear out as it should never really touch the head stock casting just a very light film of oil just like the bronze spindle bearing do.
Chet

Jay Cutright
01-25-2016, 06:39 PM
Chet you made reference to bearings sold by McMaster Carr for use as a replacement for the washer then in another post you said that the washer would never wear out.
Do you use the washer or a bearing?
I'm not sure I'm going to gain anything by this modification but since I needed to replace a damaged washer I figured I might as well make the modification that others have done before me.

Pete Wass
01-31-2016, 06:45 PM
The Fiber Washer at the rear end of the Heavy 10 is not really a thrust bearing it is just a fiber washer between the head stock casting and the take up nut. The thrust bearing is under the rear head stock cover and it is a three piece heavy duty thrust ball bearing type. The fiber washer is self lubing from the spindle oil and will never wear out as it should never really touch the head stock casting just a very light film of oil just like the bronze spindle bearing do.
Chet

What makes the thrust bearing a thrust bearing? I think it be the fiber washer's influence if one thinks through the stack. I don't see what benefit may be gained with a roller bearing. The washer on my lathe is 72 years old and still perfectfully serviceable!

Pete

Jay Cutright
01-31-2016, 08:24 PM
From what I can see from working on my 10L I have to agree with you Pete. I adjusted the end play out of my lathe with the fiber washer and ran my lathe a while just to run it after I tightened the bearing caps.

The new bearing came in the mail Friday I installed it today and again I adjusted the end play to zero, without cutting anything before and after I cannot see any difference in the way it turns.

I think this bearing is better than any three piece bearing could ever be. I don't know what this bearing is made to fit but its almost perfect for this application.

coyotechet
01-31-2016, 09:18 PM
Pete is right there is really know need or anything gained by using the rolling bearing over the flat washer. I have rebuilt and help rebuild over six south bend lathes both Heavy 10 (10L) and 9'" and have never replaced the flat washer but once and then replaced it with a n.o.s flat washer from Ted Pflugner. The only reason I have to replace the one I did is because it was cracked and the brass pin was missing looked like some had a hard time removing it.

Chet


PS. Ted was the parts manager for south bend lathe and still has a lot of n.o.s. parts.
(latheman at aol dot com)

Jay Cutright
01-31-2016, 09:27 PM
PS. Ted was the parts manager for south bend lathe and still has a lot of n.o.s. parts.
(latheman at aol dot com)

I talked to Ted last week, his 10L parts inventory is running low. I hate to hear that. It wasn't long ago he had enough new/old stock to build a new heavy 10, I wish I had one of them.

B.Larson
02-01-2016, 07:53 AM
The Fiber Washer at the rear end of the Heavy 10 is not really a thrust bearing it is just a fiber washer between the head stock casting and the take up nut. The thrust bearing is under the rear head stock cover and it is a three piece heavy duty thrust ball bearing type. The fiber washer is self lubing from the spindle oil and will never wear out as it should never really touch the head stock casting just a very light film of oil just like the bronze spindle bearing do.
Chet

Chet is correct...... We`ve used one for 35 yrs. ( used when we bought it ) in a semi-production type environment...sometimes 2 shifts.....no problems what so ever....no mods ever needed.....
bill