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I need help finding an Adapter for my old Lathe (Craftsman model 101.06260)

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Corneilius

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Discussion starter · #1 ·
Hello,

I have noticed a few members with this exact lathe and I assume have found parts to make them functional.
I am starting a new long-term project that requires turning small bowl-like parts 4'' in diameter. Although I have discovered some to admit small bowls can be turned with the Spur-drive, I for one do not trust it. For those few of you that have this particular model lathe, what adapter and 4-jaw chuck do you use?

Much appreciated for your time.

Neil
 
#3 ·
AFAIK, that lathe has a 1"x8tpi spindle thread, so you have lots of options - no real need for an adapter. You can get chucks that will direct thread on, or take inserts so it will fit your 1x8 spindle. You can also just get a 1"x8tpi thread tap and make your own threaded faceplates (threaded glue blocks) so you don't need to spend a bunch of bucks on a chuck. That will also let you make all sorts of other gadgets, like jam chucks, sanding discs, polishing cones, mandrels for doing wheels and knobs, etc...

Cheers,
Brad
 
Discussion starter · #4 ·
MrUnix said:
AFAIK, that lathe has a 1"x8tpi spindle thread, so you have lots of options - no real need for an adapter. You can get chucks that will direct thread on, or take inserts so it will fit your 1x8 spindle. You can also just get a 1"x8tpi thread tap and make your own threaded faceplates (threaded glue blocks) so you don't need to spend a bunch of bucks on a chuck. That will also let you make all sorts of other gadgets, like jam chucks, sanding discs, polishing cones, mandrels for doing wheels and knobs, etc...

Cheers,
Brad
Click to expand...
That was my hope! Thank you for the quick answer!
 
#6 ·
Corneilius said:
Hello,

I have noticed a few members with this exact lathe and I assume have found parts to make them functional.
I am starting a new long-term project that requires turning small bowl-like parts 4'' in diameter. Although I have discovered some to admit small bowls can be turned with the Spur-drive, I for one do not trust it. For those few of you that have this particular model lathe, what adapter and 4-jaw chuck do you use?

Much appreciated for your time.

Neil
Click to expand...
I found this http://vintagemachinery.org/pubs/detail.aspx?id=5949 but it doesn't mention spindle size. Later models had 3/4" x 16 spindles. I also found this and the author does say 1x8 spindle: http://vintagemachinery.org/photoindex/detail.aspx?id=4926
 
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#8 ·
I have that exact model of Craftsman lathe and a Nova 4-jaw chuck. A spindle adapter is readily available from Teknatool. The chuck threads are much larger than the spindle.
 
#9 ·
I've dealt with Penn State Industries (PSI) in Pennsylvania, on many occasions for lathes chuck & accessories. Always had good luck with them and they have "live" and helpful customer service.

They sell Barracuda 3&4 jaw chucks for around $225 and offer many spindle adapter sizes. I own the Barracuda 4-jaw and I love it.

If your spindle thread is 1x8 and your looking to save money, PSI also has economy chucks for much less with cost. Those chucks have standard 1x8 threads, and they come with a reducer for 3/4 threads. However, that feature would limit use on any newer lathes that a larger thread type --but I'm unable to comment on quality, etc. for the economy-line. It all depends on your budget, and whether it will suffice for intended use.

If interested, here's the link: Lathe Chucks at Penn State Industries
 
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#10 ·
Some chucks are direct thread and others take an insert adapter that matches the chuck to your lathe. 1 inch x 8 TPI (1x8) is the most common headstock thread size in the US today. Large lathes may have 1.25x8 TPI.

When I was shopping for a chuck, I looked at both chucks with direct thread and chucks that use insert adapters. Some companies sell both. The chuck plus separate adapter cost more than the equivalent direct thread chuck, so I bought a direct thread one. I have no plans to buy another lathe. If I did, it would prboably come with 1x8 headstock threads, but if not, it would be easy to sell my current 1x8 chuck.

Unless you are planning to use the chuck on other lathes that have various headstock thread sizes, or plan to upgrade to a much larger lathe with 1.25x8 headstock threads, then I would recommend shopping for a direct thread 1x8 chuck as a best buy for your needs.

When shopping, think about how you will use the chuck in the future. Will you want additional jaws for it, or is this only for those small bowl like parts? It is difficult to determine whether other brand jaws will fit on a given brand of chuck, so when shopping for chucks, also look at which accessories are offered by the same brand, accessories you may want later.
 
#11 ·
aboveboard said:
Some chucks are direct thread and others take an insert adapter that matches the chuck to your lathe. 1 inch x 8 TPI (1x8) is the most common headstock thread size in the US today. Large lathes may have 1.25x8 TPI.

When I was shopping for a chuck, I looked at both chucks with direct thread and chucks that use insert adapters. Some companies sell both. The chuck plus separate adapter cost more than the equivalent direct thread chuck, so I bought a direct thread one. I have no plans to buy another lathe. If I did, it would prboably come with 1x8 headstock threads, but if not, it would be easy to sell my current 1x8 chuck.

Unless you are planning to use the chuck on other lathes that have various headstock thread sizes, or plan to upgrade to a much larger lathe with 1.25x8 headstock threads, then I would recommend shopping for a direct thread 1x8 chuck as a best buy for your needs.

When shopping, think about how you will use the chuck in the future. Will you want additional jaws for it, or is this only for those small bowl like parts? It is difficult to determine whether other brand jaws will fit on a given brand of chuck, so when shopping for chucks, also look at which accessories are offered by the same brand, accessories you may want later.
Click to expand...
I might add that if you buy a chuck that requires an adapter, whatever you do, buy only adapters that are made by the manufacturer of your chuck. There are several sources for cheaper, knock-off adapters, but in my own experience, they are lower quality and may introduce run-out and vibration that will make your turning experience a lot less pleasant. For example, if you buy a Nova G3 buy only the insert manufactured by Nova. Same for other manufacturers.
 
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