lathe chuck and collets | Power Tools | Calgary | Free local classifieds - Kijiji
D1-5 Jacobs collet chuck and collets from 1-16th to 1-three eights
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lathe chuck (D1-5) and collets, $550,
- Thread starter JustaDB
- Start date
A Bison Rubberflex?
I've got both styles (2J or 5C and a rubberflex) for two of my lathes, almost braces and a belt, but the do differ slightly in capability so worth having both.
It looks in pristine shape. Dude, you should be picking this up if you have a D1-5
It looks in pristine shape. Dude, you should be picking this up if you have a D1-5
Yes, my spindle is a D1-5. But I don't think the seller knows what a D1-5 looks like. I gave it another look to see what shipping would be. But one look at one of the other photos and it's clear to me that it's not a D1-5. It only has 3 camlocks.
I've certainly seen D1-6 setups with only three pins.
The wide end of the taper looks like... 3 1/4", roughly? Which, looking it up, is bang on for D1-5.
Harder to be sure about the camlock pins, but I'd call them 3/4", going by the tape.
(I appreciate that they step up in 1/8" increments, rather than something tiny, like 32nds)
The wide end of the taper looks like... 3 1/4", roughly? Which, looking it up, is bang on for D1-5.
Harder to be sure about the camlock pins, but I'd call them 3/4", going by the tape.
(I appreciate that they step up in 1/8" increments, rather than something tiny, like 32nds)
Are you suggesting that they dropped 3 pins?
From what I've found all the D1 series Jacobs chucks only had three studs. The A1 series has the full six. I've got one of each.
here are a few examples of a -5 and a -6
Jacobs Rubber Flex Collet Chuck Set D1-6, | Proxibid
Bid in a Proxibid online auction to acquire a Jacobs Rubber Flex Collet Chuck Set D1-6, 1/16"-1-3/8" from Macon Brothers.
www.proxibid.com
Jacobs Model 91-C6 No. B Spindle Nose Lathe Collet Chuck D1-6 Mount W/Collets | Bullseye Industrial Sales
Other than cost saving, why do you think would they do that?
My guess is that it has more to do with the nature of the work. No matter what mounting size the chuck is, the max work size is 1 3/8" (Don't quote me, I'm not in the shop). So they must have figured the added weight and therefore momentum wasn't worth any added rigidity. Does make me wonder if having 3 cams floating is a great idea.... better trust they don't wing on outta there!
All that said, I LOVE mine. I use it all the time, only bummer is that the collets really aren't oil resistant, so if they were to be constantly flooded with oil they will break down. The size range on the collets is great for not having to have a million 5c's and still getting very repeatable eccentricity. I can turn a piece, take it out, put it back in and be within .0003" on the regular without trying hard.
I love my Bison 5C too. I often tell folks that I have 6 chucks but the 5C lives on my lathe more than all the others combined. Like you, on my 5C, I don't worry about repeatability. It's always within a few 10ths.
Your thoughts on leaving out the 3 studs makes some sense, but if you are working on an arbour, you could be swinging a lot more than 1-3/8ths. I am doing just that right now. This one is about 4 inches OD.
I can see no downsides to using all 6 cam studs. Maybe I am missing something though.....
I learn something new every day.
So, I shouldn't be using a collet chuck to work on things like arbours?
, This is opinion not finite element analysis .... don't worry about it. not knowing how long a piece of string is, I mean how big an arbour is
, it's still a beefy mount and the spindle is designed to hand the extremes without issue: biggest lathe, chuck size, biggest work, biggest cuts etc.Each D1 size has a specific pin size, so if he has even a rule and a portion of a brain, hopefully he can measure and confirm.
E is pin size
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Martin w
Ultra Member
They don't come up very often. I missed one last year because I was too lazy and busy to drive to Windsor.
Mcgyver. Are the back plates removeable on the Jacobs? I have seen many D1-6 chucks come up for sale. I have D1-8 on my lathe, and an extra D1-8 back plate. Not sure if I could do the swap.
Martin
Mcgyver. Are the back plates removeable on the Jacobs? I have seen many D1-6 chucks come up for sale. I have D1-8 on my lathe, and an extra D1-8 back plate. Not sure if I could do the swap.
Martin
My Bison 5C D1-5 has an integral back and all 6 cam studs.
The backing plate is the chuck with the Jacobs. I've never seen a D or A mount Jacobs that was done differently, doesn't mean they don't exist, but they may be hens teeth. I have seen a few D1-8's for sale on fleabay, but that's a large mount for a small chuck lol.
If I know any of you are looking for one, I'll keep an eye out. I'm on the road more these days and don't mind making a kijiji stop.
Martin w
Ultra Member
I have only seen 1 with a D1-8 back plate. I have been watching for 15 years. Lol It is a large mount for a small chuck for sure.