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ER40 Collet nut
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mike allen
I'm getting closer to making a couple of ER40 Collet chucks &
blocks . I see a ton of folks selling the nuts . Has anyone made a ER40 chuck or block in the semi recent past ? I'm looking for a source for these nuts that are made with some kind of tolerance involved in the manufacturing of them . Anyone have any history with these ? thanks animal |
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Funny, I just mated an ER40 collet plate to a 2-1/4-8 backing plate on my 11" Sheldon. Need to test runout with a piece of straight drill rod. I also just got a ball bearing ER40 nut because I heard they were better and I like the idea of it closing without rubbing on the collet itself other than pushing against the two tapers. I have an R8 ER40 collet holder that might also get a ball bearing nut as they are only about $23 on ebay. Also have a set of square and hex ER40 collet blocks, now that you mention it. Most are new in the packages as I have been very busy at work... On Fri, Feb 10, 2023 at 5:45 PM mike allen <animal@...> wrote: I'm getting closer to making a couple of ER40 Collet chucks & |
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IF you want a really good one, get Rego-Fix. They're the originator and set the standard for them. I've got several ER32 collet holders, and a couple of ER25 collet holders, from imported sources, and so far all have been good enough for my skill level. I also have a new ER16 set with the collet holder designed for an M5 motor shaft, and a set of 10 metric collets 1-10mm, that I've visually examined the collet holder and it looks good, but I've not got any way to test it yet. Just arrived day before yesterday. It's planned to be modified to be a collet chuck on a Unimat DB or SL. https://www.amazon.com/dp/B077PVBCDT Counting that last one, I've got 9 ERxx collet holders or sets of collets. Got a couple or more from eBay, as well. If I ever get the SB Heavy 10L running, I'll probably get an ER40 collet holder and collets, too. ;) I'm afraid I'd have to suddenly get rich to get them from Rego-Fix, though. Attached is some technical documentation on Rego-Fix ER collets. You might find it helpful. Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement. SEMPER GUMBY! Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better
On Friday, February 10, 2023 at 05:45:57 PM CST, mike allen <animal@...> wrote:
I'm getting closer to making a couple of ER40 Collet chucks & blocks . I see a ton of folks selling the nuts . Has anyone made a ER40 chuck or block in the semi recent past ? I'm looking for a source for these nuts that are made with some kind of tolerance involved in the manufacturing of them . Anyone have any history with these ? thanks animal |
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Rick
I made er40 collet chucks for SB9 and SB13, in addition to square and hex collet blocks. I bought a set of CDCO collets, which included a nut and another nut from Shars. I see no difference in quality or runout. Here is my handiwork.
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John Dammeyer
Nice!
From: SouthBendLathe@groups.io [mailto:SouthBendLathe@groups.io] On Behalf Of Rick
Sent: February-10-23 4:45 PM To: SouthBendLathe@groups.io Subject: Re: [SouthBendLathe] ER40 Collet nut
I made er40 collet chucks for SB9 and SB13, in addition to square and hex collet blocks. I bought a set of CDCO collets, which included a nut and another nut from Shars. I see no difference in quality or runout. Here is my handiwork. |
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Steven Schlegel
I use ER-32 because its max size is about the size of the hole in the SB9 spindle (1949 vintage.) I wish I had ER-40 because I use the collets on my mill, also, to hold bits.
Steven
From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of John Dammeyer <johnd@...>
Sent: Friday, February 10, 2023 4:56:26 PM To: SouthBendLathe@groups.io <SouthBendLathe@groups.io> Subject: Re: [SouthBendLathe] ER40 Collet nut Nice!
From: SouthBendLathe@groups.io [mailto:SouthBendLathe@groups.io]
On Behalf Of Rick
I made er40 collet chucks for SB9 and SB13, in addition to square and hex collet blocks. I bought a set of CDCO collets, which included a nut and another nut from Shars. I see no difference in quality or runout. Here is my handiwork. |
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Rick
I went for er40 because I already had 3c for the SB9, and wanted to de able to hold larger sizes. When I got my SB13, it had 5C, but I decided to make an ER chuck for it anyway. ER has the advantage of being able to hold material that is undersized as compared to 3C or 5C.
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mike allen
Nice Job . I'm debating if the ball bearing nuts are worth the
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extra $$ . I have a set of inch ER40 collets , wish I would have gotten the metric ones instead . MY thinkin is I need a 1 1/2 x8 , a 2 1/4 x 8 ( I think , I need to re measure ) & a pair of collet blocks . That would cover both lathes & the mill . I have a set of inch 3C collets for the SB 9A but just the standard inch sizes nothing between 16's . I'm also thinkin of gettin probably a set of ER 16's & that will take me down as small as I can see & then some . Are the wrenches all the same for the ER40 nuts or does that depend on the vendor ? thanks animal On 2/10/2023 4:44 PM, Rick wrote:
I made er40 collet chucks for SB9 and SB13, in addition to square and |
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mike allen
I was reading a guys write up on makin a ER40 chuck for
his 9" lathe & he said he swapped his spindle for a 10 "
spindle for the larger through hole . Any of you folks know
anything about that ? Which 10" ? Does it still have the 1 1/2 x 8 spindle ? thanks animal
On 2/10/2023 5:14 PM, Steven Schlegel
wrote:
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Yes. I did. It’s from a light 10 or 10k.
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Same thread as standard. Jim B, On Feb 10, 2023, at 8:30 PM, mike allen <animal@...> wrote:
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Jim B |
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The Excel sheet I made up shows the comparison of metric vs imperial collets. I purchased the imperial ones. Cost more, but have size overlap the metric ones don't. The PDF is the ER40 I made for the SB-9A.
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Al -----Original Message-----
From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of mike allen Sent: Friday, February 10, 2023 8:25 PM To: SouthBendLathe@groups.io Subject: Re: [SouthBendLathe] ER40 Collet nut Nice Job . I'm debating if the ball bearing nuts are worth the extra $$ . I have a set of inch ER40 collets , wish I would have gotten the metric ones instead . MY thinkin is I need a 1 1/2 x8 , a 2 1/4 x 8 ( I think , I need to re measure ) & a pair of collet blocks . That would cover both lathes & the mill . I have a set of inch 3C collets for the SB 9A but just the standard inch sizes nothing between 16's . I'm also thinkin of gettin probably a set of ER 16's & that will take me down as small as I can see & then some . Are the wrenches all the same for the ER40 nuts or does that depend on the vendor ? thanks animal On 2/10/2023 4:44 PM, Rick wrote: I made er40 collet chucks for SB9 and SB13, in addition to square and |
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mike allen
Thanks Al . I'm not sure why everyone says to get the metric
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ones , being able to see the dimensions right next to each other like in your Excell chart it looks to me that I'm fine having the inch set over the metric set . I've been keeping my eye on those collet chucks on the big A & ebay , still on the fence on making one or buying . Thanks for the pages . I think when I get a chuck I'll print that Excell page & get it laminated & hang it near the machines . A guy/gal could take one of those collet chucks & make a adjust-tru pretty darn easy , your working on the backplate anyways . Thanks all folks , for all the input . animal On 2/10/2023 6:40 PM, ww_big_al wrote:
The Excel sheet I made up shows the comparison of metric vs imperial collets. I purchased the imperial ones. Cost more, but have size overlap the metric ones don't. The PDF is the ER40 I made for the SB-9A. |
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I think it's your chart I have on the wall above my lathe, actually. Believe I bought the Vevor brand collets. You'll laugh, but I needed to turn down the shank on some plasma cutter consumables while waiting for Yeswelder to ship my spares, so I put my R8 collet holder in the 4-jaw, dialed it in, then used a collet to hold and turn them in the lathe. It worked... On Fri, Feb 10, 2023, 8:41 PM ww_big_al <arknack@...> wrote: The Excel sheet I made up shows the comparison of metric vs imperial collets. I purchased the imperial ones. Cost more, but have size overlap the metric ones don't. The PDF is the ER40 I made for the SB-9A. |
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I did the same thing, turned the spigot way down to bring the collet right up to the spindle. Did the same for the 4-jaw. Figured getting that big weight closer to the spindle bearings was a good idea. On Fri, Feb 10, 2023, 8:41 PM ww_big_al <arknack@...> wrote: The Excel sheet I made up shows the comparison of metric vs imperial collets. I purchased the imperial ones. Cost more, but have size overlap the metric ones don't. The PDF is the ER40 I made for the SB-9A. |
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I may have spoken too soon: https://www.ebay.com/itm/144515269679 Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement. SEMPER GUMBY! Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better
On Friday, February 10, 2023 at 05:45:57 PM CST, mike allen <animal@...> wrote:
I'm getting closer to making a couple of ER40 Collet chucks & blocks . I see a ton of folks selling the nuts . Has anyone made a ER40 chuck or block in the semi recent past ? I'm looking for a source for these nuts that are made with some kind of tolerance involved in the manufacturing of them . Anyone have any history with these ? thanks animal |
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Rick
On Fri, Feb 10, 2023 at 10:52 PM, mike allen wrote:
Thanks Al . I'm not sure why everyone says to get the metricI can’t remember if you have a screw on chuck, but if so, make the collet chuck on the lathe it will be used on. There is not need for adjustment, as you cut the taper while it is screwed to the spindle. You will not get any more accurate than that. |
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Steve Wells
Al, would you mind if I post your project on my website with Owner Credit, I'm trying to add new content
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and update the site. Nice write-ups in pdf form are very appreciated. Steve Wells www.wswells.com -----Original Message-----
From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of ww_big_al Sent: Friday, February 10, 2023 9:41 PM To: SouthBendLathe@groups.io Subject: Re: [SouthBendLathe] ER40 Collet nut The Excel sheet I made up shows the comparison of metric vs imperial collets. I purchased the imperial ones. Cost more, but have size overlap the metric ones don't. The PDF is the ER40 I made for the SB-9A. Al -----Original Message----- From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of mike allen Sent: Friday, February 10, 2023 8:25 PM To: SouthBendLathe@groups.io Subject: Re: [SouthBendLathe] ER40 Collet nut Nice Job . I'm debating if the ball bearing nuts are worth the extra $$ . I have a set of inch ER40 collets , wish I would have gotten the metric ones instead . MY thinkin is I need a 1 1/2 x8 , a 2 1/4 x 8 ( I think , I need to re measure ) & a pair of collet blocks . That would cover both lathes & the mill . I have a set of inch 3C collets for the SB 9A but just the standard inch sizes nothing between 16's . I'm also thinkin of gettin probably a set of ER 16's & that will take me down as small as I can see & then some . Are the wrenches all the same for the ER40 nuts or does that depend on the vendor ? thanks animal On 2/10/2023 4:44 PM, Rick wrote: I made er40 collet chucks for SB9 and SB13, in addition to square and |
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mike allen
Yea all my lathes are screw on chucks . I did the spigot shortening on the chucks for the SB , but plan to also do that on the Enco when I finally get my room done & all setup . animal On 2/11/2023 3:53 AM, Rick wrote:
I can’t remember if you have a screw on
chuck, but if so, make the collet chuck on the lathe it will be
used on. There is not need for adjustment, as you cut the taper
while it is screwed to the spindle. You will not get any more
accurate than that.
On Fri, Feb 10, 2023 at 10:52 PM, mike allen wrote: |
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You are more than welcome to post it. Post the spread sheet also, if you wish. I wrote them to be shared.
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Al Knack -----Original Message-----
From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of Steve Wells Sent: Saturday, February 11, 2023 12:23 PM To: SouthBendLathe@groups.io Subject: Re: [SouthBendLathe] ER40 Collet nut Al, would you mind if I post your project on my website with Owner Credit, I'm trying to add new content and update the site. Nice write-ups in pdf form are very appreciated. Steve Wells www.wswells.com -----Original Message----- From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of ww_big_al Sent: Friday, February 10, 2023 9:41 PM To: SouthBendLathe@groups.io Subject: Re: [SouthBendLathe] ER40 Collet nut The Excel sheet I made up shows the comparison of metric vs imperial collets. I purchased the imperial ones. Cost more, but have size overlap the metric ones don't. The PDF is the ER40 I made for the SB-9A. Al -----Original Message----- From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of mike allen Sent: Friday, February 10, 2023 8:25 PM To: SouthBendLathe@groups.io Subject: Re: [SouthBendLathe] ER40 Collet nut Nice Job . I'm debating if the ball bearing nuts are worth the extra $$ . I have a set of inch ER40 collets , wish I would have gotten the metric ones instead . MY thinkin is I need a 1 1/2 x8 , a 2 1/4 x 8 ( I think , I need to re measure ) & a pair of collet blocks . That would cover both lathes & the mill . I have a set of inch 3C collets for the SB 9A but just the standard inch sizes nothing between 16's . I'm also thinkin of gettin probably a set of ER 16's & that will take me down as small as I can see & then some . Are the wrenches all the same for the ER40 nuts or does that depend on the vendor ? thanks animal On 2/10/2023 4:44 PM, Rick wrote: I made er40 collet chucks for SB9 and SB13, in addition to square and |
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ken campbell
only slightly germain to this thread, but I have an extra ER40 chuck on a solid 5MT shank .. oh, and a lathe chuck .. about 6 or 8 inches .. on a solid 5 MT shank ... pm me if . sorry to blunder in here, but I keep forgetting I accumulated these. thanks. |
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