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Bison lathe chuck CA$100
- Thread starter johnnielsen
- Start date
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'You guys get all the good etc. etc.'
I was kind of annoyed, the seller’s profile photo is for ‘Wright Machining Service’. You’d think they’d identify what camlock size it was?
Dabbler
ersatz engineer
Yeah. It could easily D1-3 or D1-4. I even have a D1-6 that has only 3 pins!
140mower
Don
.......or the diameter. If 8", it would have been a great addition to the shop. It sold pretty quick I think. Saved myself $100 by not being on Facebook. The wife asked for me, and it was gone by around 6-7:00.
Dabbler
ersatz engineer
@slow-poke
Bison have been known for years for their quality workmanship and materials. For a long time they were the 'sleeper' brand, quite inexpensive, but every-bit-as-good-as the big brands. The then became a recognized brand, and upped their game, making and selling a wider variety of chucks, and creating a higher tier of chucks.
When they gained popularity, they started sharing production (the 1990s?) with another lathe manufacturer down the road. Between them, the quality dipped a bit for a few years. Now they are as good as ever.
'Way back when' Busy Bee bought all its lathes and chucks from Taiwan. Top notch stuff. More recently they supply almost exclusively from China. Not that is always a bad idea, but if you buy cheap from China, you get what you pay for.
On some models I have heard complaints.
I own 2 Taiwanese BB chucks and they are the highest quality. I'm not sure present chucks are up to that standard. It is still possible your chucks are just fine. Not everything at BB is worrisome.
Bison have been known for years for their quality workmanship and materials. For a long time they were the 'sleeper' brand, quite inexpensive, but every-bit-as-good-as the big brands. The then became a recognized brand, and upped their game, making and selling a wider variety of chucks, and creating a higher tier of chucks.
When they gained popularity, they started sharing production (the 1990s?) with another lathe manufacturer down the road. Between them, the quality dipped a bit for a few years. Now they are as good as ever.
'Way back when' Busy Bee bought all its lathes and chucks from Taiwan. Top notch stuff. More recently they supply almost exclusively from China. Not that is always a bad idea, but if you buy cheap from China, you get what you pay for.
On some models I have heard complaints.I own 2 Taiwanese BB chucks and they are the highest quality. I'm not sure present chucks are up to that standard. It is still possible your chucks are just fine. Not everything at BB is worrisome.
If you're interested Dan may still have a few 5" chucks on a 1.5" x 8tpi backing plate left around. You would just need a backing plate to fit your machine but at $190 CDN you won't find a Bison any cheaper.
These are NOS from the 1980s when they bought a pallet load of them so they need a good cleaning. Quite a few of us on the forum have bought them.
3 and 4 jaw chucks for bench lathes
6" Atlas original 4 jaw lathe chucks and Bison 5" 3 jaw chucks with 1 1/2 x 8 integral mounts
www.hhrobertsmachinery.com
These are NOS from the 1980s when they bought a pallet load of them so they need a good cleaning. Quite a few of us on the forum have bought them.
Hmm, tempted to pick one up. Small for my lathe, but sometimes that's handy, and at that price...
I am among the counted. Happy w/ the chucks (got a 3- & 4-jaw).
slow-poke
Ultra Member
My lathe has a MT4 taper for the spindle. So I guess I would need something between to use it.
I'm not unhappy with my little CX706. Just this morning I made a precise fit bushing and was able to match it to the shaft to probably 0.0002" or so with minimal taper basically a perfect fit for me. That being said I'm on the prowl for a nice (11-12") Standard Modern. My friendly machinist neighbour helped me machine a really hard ballscrew last night (I'm easily impressed when he starts quoting taper in microns), so I have SM envy. Perhaps I should look beyond the SM lathes, how do Colchester compare? Others that are similar quality?
You guys should have warned me that this hobby is addictive, just another 100HP, just another 50 cubic inches should do it, wait that's the other never ending (read expensive) hobby. ;-)
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That seems odd. Did you mean that your spindle has an MT4 taper INSIDE IT? Surely that isn't the primary drive system. Doesn't it also have a threaded spindle nose or a D1-x or or or? If so, I'd use that, not the morse taper.
The normal method is to get a back plate to fit your spindle and fit the backplate to the chuck.
Maybe I don't understand your question.
slow-poke
Ultra Member
The lathe as supplied included 3, 4 jaw chucks (5") and a 240mm backplate that I have not used (yet). They all attach with three stud/nuts, just loosen them and the chuck rotates and then slips off.
Looks like the MT4 spindle nose taper is large enough to provide the 1" hole through the spindle, I'm guessing that the 3 stud adapter between the chuck and spindle likely has a MT4 taper to match the spindle?
I suppose you can remove the chuck and install a MT4 collet?
(New) BISON 8" 3-jaw chuck
This baby has been taking up space for a while. Used once for one job and gathering dust for a couple of years now. KBC link: https://www.kbctools.ca/itemdetail/7-820-0800 Absolutely perfect precision chuck with reversible jaws. It is mounted to a 1-1/2-8TPI back plate which I can remove to...