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rockwell beaver lathe spindle adapters

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Forum topic by praspekt posted 238 days ago 1366 views 0 times favorited 21 replies Add to Favorites Watch
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praspekt

18 posts in 487 days


238 days ago

all of my chucks are 1” 8 tpi, and i just found an old rockwell beaver that has outboard turning, though the outboard spindle is 3/4” 16 tpi, and the inboard spindle is 7/8” 14 tpi. does anyone happen to know were i can find decent quality spindle adapters? the outboard spindle is left threaded, and the inboard standard.

thanks! i can’t wait to play with the lathe, it’s a lot bigger then my other lathe..


21 replies so far

View Rick M.'s profile

Rick M.

3773 posts in 975 days


#1 posted 238 days ago

Oneway

http://oneway.ca/chucks/adaptors.htm

-- |Statistics show that 100% of people bitten by a snake were close to it.|

View Wildwood's profile

Wildwood

950 posts in 730 days


#2 posted 238 days ago

Do not know what brand chucks you have, better contact manufacturers, for thread adapters/inserts.

Even if do not have thread sizes you need can provide dimension/tolerances needed to have one made that will fit your chuck. Big concern is run out, too much not good!

While might not have a problem finding ¾” x 16 TPI, for wood lathes not sure about 7/8” x 14 TPI.

Good luck!

-- Bill

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bondogaposis

2436 posts in 947 days


#3 posted 238 days ago

Penn State has spindle adapters here.

-- Bondo Gaposis

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praspekt

18 posts in 487 days


#4 posted 238 days ago

thanks for the info!!

View Brian Myers's profile

Brian Myers

14 posts in 321 days


#5 posted 230 days ago

When you run into odd lathe spindle sizes , Oneway is the place to go. Good luck finding a straight forward spindle adapter for 7/8×14 but all 3 of Oneway’s chucks do have adapters for that size. They do make a very nice chuck. Your other choice would be to find a machinist to make a 7/8×14 to 1×8 . See if you can find a retired one that still has a lathe. That seems to be the cheapest way to go for custom work.

-- Wood worker , wood turner, wood artist , don't they all mean the same thing as wood hoarder?

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praspekt

18 posts in 487 days


#6 posted 230 days ago

http://bestwoodtools.stores.yahoo.net/prstspadwith.html

i found this guy.. i already have an axminster chuck that i’m happy with, and would much rather not invest in another chuck. though, one thing that i did think about though, was that on this lathe there is LH threading on the outboard side, so do i need to get another chuck that has LH threading? i’m not really looking forward to having to retrain my hands with the rotation of the bowl going opposite..

are there modifications that could be made to the outboard spindle for it to spin counter clockwise?

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Rick M.

3773 posts in 975 days


#7 posted 230 days ago

If it’s anything like my Craftsman lathe then yes you’ll need a LH adapter for the outboard spindle.

-- |Statistics show that 100% of people bitten by a snake were close to it.|

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praspekt

18 posts in 487 days


#8 posted 230 days ago

what do you mean? an adapter so it can rotate the other way?

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Wildwood

950 posts in 730 days


#9 posted 230 days ago

Special thread sizes NOT SHOWN BELOW are available on request. Please call us at 931-788-0429 for a quotation or email us at sales@bestwoodtools.com .

Why not just email best tools, and see if can make one for you.

-- Bill

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Rick M.

3773 posts in 975 days


#10 posted 230 days ago

You need a motor that reverses to spin it the other way and you’ll need a LH thread adapter for your chuck. And if you reverse the lathe then make sure the chuck uses a set screw or it will spin off. Or just get yourself a 3/4-16 LH tap and make a sanding/sharpening disc for the outboard spindle.

-- |Statistics show that 100% of people bitten by a snake were close to it.|

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praspekt

18 posts in 487 days


#11 posted 230 days ago

i can always wire a switch for opposite direction. so should i get an adapter with a female 3/4-16 LH with a set screw, and a male end of 1”-8 RH? i guess i can drill a hole where the set screw will be to hold it securely and not mess up the thread too much.

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Rick M.

3773 posts in 975 days


#12 posted 229 days ago

I’m curious how this will turn out. The good news is that Oneway sells all the adapters so you might want to chat with them a bit.

-- |Statistics show that 100% of people bitten by a snake were close to it.|

View Brian Myers's profile

Brian Myers

14 posts in 321 days


#13 posted 228 days ago

Why would you need to retrain yourself ? Your position at the lathe changes but it’s still all done the same as if you were standing in the normal position. Provided you are standing out of the line of fire, the blank with still be rotating toward you, the difference is you won’t have the bed of the lathe in the way. You will effectively be standing behind and on the opposite side of the lathe to use the outboard position.

-- Wood worker , wood turner, wood artist , don't they all mean the same thing as wood hoarder?

View Arminius's profile

Arminius

304 posts in 2399 days


#14 posted 228 days ago

I would suggest you check out the Canadian Woodworking forum on turning for info on the Beaver lathes. Lots of threads on them – I have a pre-Rockwell (Callander Foundry) model.

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praspekt

18 posts in 487 days


#15 posted 227 days ago

i called up oneway the other day, and the guy told me to not go the LH threaded, with a lock screw, and not switch the rotation.

Brian.. the retraining comes from working from the opposite side of the piece. on the inboard it rotates counter clockwise, and when working a bowl i work from left towards the center, on the outboard side, with the LH threading, the rotation is going clockwise, so i’ll be working a bowl from right to center.. for some reason it just intimidates me.. though i’m going to be getting a LH threaded face plate soon, and start playing. i’m just kinda new to turning, only about a year, still learning..

how large or a bowl could be turned on a rockwell lathe?? is 20” a bit ambitious?

arminius, thanks for the info, i’ll check it out.

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