Broken back gear tooth on SB heavy 10L lathe

[robsig]

Hi all- I recently got my first-ever lathe from an old back yard garage. It has a broken tooth on the larger gear (see px). Am I better of just replacing the gear or the whole assembly? If I replace just the gear, how do I remove it? Heating?

 

[Makintrax73]

Not knowledgeable enough about 10L's to know if they ever changed the design of the back gear, but assuming not I'd just buy one on Ebay:

South Bend Lathe 10L Heavy 10 Back Gear | eBay

<p>South bend heavy 10 or 10L back gear. No chips or cracks. Gear teeth all look good. </p>

www.ebay.com

Replacing a broken tooth is absolutely possible for a hobbyist, but unless you have brazing equipment, a mill (or attachment for the lathe), a way to index it, and a gear cutter already on hand I don't think you'll beat the price of a good used one considering they seem to go for well under $100 shipped.

Good luck with the new machine!

 

[robsig]

Thanks so much! Simpler is way better for me!

 

[SLK001]

Just one tooth? What about the spindle bull gear underneath the cover?

For the record, that particular gear is pressed on its shaft onto a woodrift key.

 

[robsig]

The spindle bull gear looks fine. One tooth broken off- is that insignificant (I'm very new to machining)?

 

[SLK001]

The spindle bull gear looks fine. One tooth broken off- is that insignificant (I'm very new to machining)?

You can still use the back gears while missing one tooth in a row. You'll hear a "clack, clack, clack" as the tooth vacancy goes over the smaller gear, but it is still quite usable.

 

[robsig]

Thanks! That's reassuring.