Brass bearings for headstock on heavy 10

R

Reade

Plastic

Joined

Sep 27, 2016

• Nov 13, 2016

• #1

my heavy 10 has wear in the main shaft on its front bearing surface. if I decide to have the shaft welded and ground back to std where can find the new bearings?

 

M

Milland

Diamond

Joined

Jul 6, 2006

Location

Hillsboro, New Hampshire

• Nov 13, 2016

• #2

Not brass, almost certainly a bearing bronze variant. Search for bronze bearing and South Bend spindle, hopefully you'll find useful info.

 

K

kitno455

Titanium

Joined

Jul 9, 2010

Location

Virginia, USA

• Nov 13, 2016

• #3

I don't think anyone produces new bearings, but sometimes you can find a used set that are in good shape. You could also make them, its not a particularly complex shape. That said, I'd like to see some pictures of your bearings. New owners often overreact to minor bearing issues that will not impact performance.

allan

PS- they are bronze.

 

K

karl

Cast Iron

Joined

Sep 11, 2005

Location

Fayetteville, close to Pond Bank, Pa.

• Nov 15, 2016

• #4

Forget welding and just have the spindle ground and have new bearings made. It cost me $100.00 for grinding and I haven't made the bearings yet.
Karl

 

R

Reade

Plastic

Joined

Sep 27, 2016

• Nov 16, 2016

• #5

I used the term brass just off the cuff. Didn't know it was nesseary to used the exact alloy. Would that be 660 bearing bronze?

I guess I could make them, I have another lathe, and a mill. It would be nice to see a print to understand the clearances but I guess I could figure that out too by looking at the old ones perhaps mounted in the main caps with the spindle out.

 

P

PHDesigns

Hot Rolled

Joined

Jan 4, 2002

Location

Oklahoma, USA

• Nov 17, 2016

• #6

Not sure what part of OK you are in, but hey! I am restoring a heavy 10 and it is pretty worn. The head stock bearing have some wear, and the spindle had quite a bit. Took the spindle to a cam shaft place and they welded it up and reground it for $125. I am leaving the bearings alone.

 

G

Glenn Brooks

Aluminum

Joined

Nov 16, 2014

Location

Woodinville, Wa

• Nov 20, 2016

• #7

The old SB catalogs specify that the bearings are scraped to a 'sliding fit'. BTW, I scraped in the bearings on my 1919 Dalton-six recently. When I shimmed and tightened the head stock caps holding the bearings the shaft was to tight. So found out tightening the bearings down was causing some compression at the sides of the (split) bearings. The sides of the bearings are where I did most of the scraping to achieve a free turning shaft withthe .001" of play necessary for proper lubrication.

 

R

Ron_m80

Aluminum

Joined

Aug 12, 2013

Location

USA, California

• Nov 21, 2016

• #8

Boston Gear manufacturers "plain bearings" up to 3". They would likely need a little machining to get the fit correct and make up for the oil passages/ wick, etc.

 

N

nt1953

Hot Rolled

Joined

Sep 4, 2004

Location

Huntsville, Alabama

• Nov 24, 2016

• #9

The headstock drawing on Steve's site (http://www.wswells.com/data/prints/prints_index.html) shows the bearing to be 80% copper, 10% tin, 0.25% phosphorus, and the balance lead. It also says the final assembly is lapped in.

This link seems to agree with that alloy: Bronze and Copper-Alloy Bearings | Basics of Design content from Machine Design

Also check out this thread: http://www.practicalmachinist.com/v...onze-split-spindle-bearings-1919-13-a-316905/