Replacement gear help for 16" SBL

E

ETRem1

Plastic

Joined

Dec 22, 2018

• Mar 10, 2019

• #1

Would anyone know where to get a replacement gear for a 16" SBL. The main gear as seen below (please feel free to help with terminology) is missing a tooth. It is approximately 6 3/4 in diameter and roughly 80 tooth.

Thanks for the help!

 

I

iwananew10K

Diamond

Joined

Sep 12, 2010

Location

moscow,ohio

• Mar 11, 2019

• #2

For reference and to serve as a bump, that is a 12DP x 14.5PA gear.

 

E

ETRem1

Plastic

Joined

Dec 22, 2018

• Mar 11, 2019

• #3

Thanks for the help. would you happen to know where one could be found?

I have been reading that the idler gear just serves as a spacer and the exact tooth count doesn't change threading. Do you know if thats the case?

Thanks again

 

I

iwananew10K

Diamond

Joined

Sep 12, 2010

Location

moscow,ohio

• Mar 11, 2019

• #4

True...but it needs to be big enough for it to reach the stud gear.

I think your gear qualifies for a repair job....but I'm also sure someone will have one...you can buy new off the shelf but it ain't cheap.

 

Zahnrad Kopf

Diamond

Joined

Apr 5, 2010

Location

Tropic of Milwaukee

• Mar 11, 2019

• #5

Check with Ted. "latheman2" is the address part and it's at AOL domain.

 

K

Kevin T

Stainless

Joined

Jan 26, 2019

• Mar 11, 2019

• #6

I am just getting to the gears portion of my new to me lathe but I am surprised that our gears look so different. Mine is a 1941 16" toolroom lathe. Here's a pic of mine for reference.

 

thomasutley

Hot Rolled

Joined

Sep 10, 2014

Location

Oro Valley

• Mar 11, 2019

• #7

Kevin T said:

I am just getting to the gears portion of my new to me lathe but I am surprised that our gears look so different. Mine is a 1941 16" toolroom lathe. Here's a pic of mine for reference.

View attachment 252077

Click to expand...

I believe what you're seeing is the difference between the single tumbler (sliding gear) and double tumbler (no sliding gear) gearbox arrangements.

 

E

ETRem1

Plastic

Joined

Dec 22, 2018

• Mar 16, 2019

• #8

TTT. Still looking for a gear.

 

P

packardbill

Cast Iron

Joined

Oct 10, 2012

Location

central Pa., U.S.A.

• Mar 16, 2019

• #9

You can contact Boston Gear about a new one or take your gear to a machine shop and have the broken tooth built up and profiled. Then, set that gear train up properly. The mesh between the stud gear and idler gear in your pic is nowhere deep enough, and likely contributed to the broken tooth if the lathe was being operated like that.
Keep checking fleabay to see if some slug is cannibalizing a double tumbler 16" in the hopes of doubling his auction investment money. Good luck. PB