The manual addresses speed with the sleeve bearings. It states that the
clamping pressure should be reduced slightly for high speed and
tightened back for slow speed. If it states what speed is high vs low I
didn't catch it.
Don
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Jody, I think the Timkens were more like: we invented this newfangled thing called a bearing and we're now putting it into our lathes.?
?
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Were the Timken brgs an option when they first showed up in Atlas Lathes?
Sort of like a deluxe version.
Mine is a Timken brg 101.07403, circa 1944.? Granted this is a 12"
-Jody
-------- Original message --------
From: "mikehostalek via Groups.Io" <mikehostalek@...>
Date: 1/25/19 2:19 PM (GMT-06:00)
To: [email protected]
Subject: Re: [atlas-craftsman IO] new guy - old 618
Interesting. I knew about the oil recommendation changing, I never knew they were putting timkens in them as early as 1937. I wonder now if the timkens were sold as a high speed option, or if they were having trouble figuring out which way to go.
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Were the Timken brgs an option when they first showed up in Atlas Lathes? Sort of like a deluxe version.
Mine is a Timken brg 101.07403, circa 1944.? Granted this is a 12" -Jody
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-------- Original message -------- From: "mikehostalek via Groups.Io" <mikehostalek@...> Date: 1/25/19 2:19 PM (GMT-06:00) To: [email protected] Subject: Re: [atlas-craftsman IO] new guy - old 618 Interesting. I knew about the oil recommendation changing, I never knew they were putting timkens in them as early as 1937. I wonder now if the timkens were sold as a high speed option, or if they were having trouble figuring out which way to go.
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Interesting. I knew about the oil recommendation changing, I never knew they were putting timkens in them as early as 1937. I wonder now if the timkens were sold as a high speed option, or if they were having trouble figuring out which way to go.
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I've looked through a bunch of pdf's and a couple of original printed
manuals. My original 1937 Atlas manual never mentions 618 or any other
model number, as best I could tell, but it discusses both bearing styles
and shows pictures of both styles.
I noticed one little tid bit of information. In the 1937 manual 10
weight oil is used. In the later manuals, 50s/60s and later, 20 weight
is used.
Don
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On 1/24/2019 8:32 PM, mikehostalek via Groups.Io wrote: Hello everyone!
I picked up an old Atlas and have finally got around to messing with it.
I got the bed and all the ways on the compound, cross-slide, and suck
nice with some kroil and a dish scrubby pad
I got most everything freed up and turning nice (spindle turned when I
found it and seems nice and tight)
With a little luck, and some friendly advice, I may get this thing
making chips before too long!
I do have some questions about these old six inch lathes.
I've read conflicting information on spindle bearing types, I understand
the first craftsmans had a small spindle, besides that, is it correct
that the 8TPI spindles are sleeve and the 10TPI are timken? That's
mostly what I've read, mine has 10TPI and two little oil cups with
spring loaded covers over the bearings.
Also I'm having trouble removing the gear from the leadscrew. It had a
bolt and two washers in the end of it, removing it exposes the shaft and
what looks like two woodruff keys? does it just need a little more time
in the oil? I have removed the leadscrew. The left leadscrew bearing,
though there's nothing stopping it, gets extremely tight if I move it as
much as 1/16-1/8 of an inch to the right, I don't want to force it that
way but I want it out or at least off the journal to clean.
Thanks to anyone who reads this, more so to anyone who is able to help.
<>
Virus-free. www.avg.com
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
|
Welcome to the group.
You'll find some great help here in the rebuild or refurb of your 618 and machining techniques.? Lot's f good guys here willing to help.
Sorry I can't too much help out on the 618, I have the 12x24 101.07402
-Jody (DFW)
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Re: speakin of oilers & oil cups
Thanks Mike, I'll have to save this site. So when I rebuilt the lathe I'm not sure I was able to get the oil cups out. IIRC I think I pinched the top of one of them where the cover was out of line a bit.
But to be honest I don't remember if it was the headstock cups or the countershafts cups.
I don't know about yall? but the countershafts cups are empty everytime I use the lathe. I belive that is a plain sintered bronze bearing with no holes. Of course my memory is terrible.? I should've taken pictures during reassembly. -Jody
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-------- Original message -------- From: mike allen <animal@...> Date: 1/24/19 11:18 PM (GMT-06:00) To: [email protected] Subject: Re: [atlas-craftsman IO] speakin of oilers & oil cups
??? ??? yep I need to replace a few on my 9A that were
missing/destroyed when I tore it down
??? ??? animal
On 1/24/2019 9:15 PM, Bill in OKC too
via Groups.Io wrote:
Thanks, Animal. I think Jody isn't the only one who could use
that link. I've got an Atlas TH42 & an MF mill, as well as a
South Bend 10L lathe. Lots of Gits oilers among them.?
Bill in OKC?
Sent from my Sprint Phone.
-------- Original message --------
Date: 1/24/19 9:48 PM (GMT-06:00)
Subject: [atlas-craftsman IO] speakin of oilers & oil
cups
ya may find one here with the clearance ya need for yer lathe Jody
??? ???
??? ??? animal
|
Re: speakin of oilers & oil cups
??? ??? yep I need to replace a few on my 9A that were
missing/destroyed when I tore it down
??? ??? animal
On 1/24/2019 9:15 PM, Bill in OKC too
via Groups.Io wrote:
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Thanks, Animal. I think Jody isn't the only one who could use
that link. I've got an Atlas TH42 & an MF mill, as well as a
South Bend 10L lathe. Lots of Gits oilers among them.?
Bill in OKC?
Sent from my Sprint Phone.
-------- Original message --------
Date: 1/24/19 9:48 PM (GMT-06:00)
Subject: [atlas-craftsman IO] speakin of oilers & oil
cups
ya may find one here with the clearance ya need for yer lathe Jody
??? ???
??? ??? animal
|
Re: speakin of oilers & oil cups
Thanks, Animal. I think Jody isn't the only one who could use that link. I've got an Atlas TH42 & an MF mill, as well as a South Bend 10L lathe. Lots of Gits oilers among them.?
Bill in OKC?
Sent from my Sprint Phone.
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Show quoted text
-------- Original message -------- From: mike allen <animal@...> Date: 1/24/19 9:48 PM (GMT-06:00) Subject: [atlas-craftsman IO] speakin of oilers & oil cups
ya may find one here with the clearance ya need for yer lathe Jody ??? ??? ??? ??? animal
|
speakin of oilers & oil cups
ya may find one here with the clearance ya need for yer lathe Jody
??? ???
??? ??? animal
|
Hello everyone!
I picked up an old Atlas and have finally got around to messing with it.
I got the bed and all the ways on the compound, cross-slide, and suck nice with some kroil and a dish scrubby pad
I got most everything freed up and turning nice (spindle turned when I found it and seems nice and tight)
With a little luck, and some friendly advice, I may get this thing making chips before too long!
I do have some questions about these old six inch lathes.
I've read conflicting information on spindle bearing types, I understand the first craftsmans had a small spindle, besides that, is it correct that the 8TPI spindles are sleeve and the 10TPI are timken? That's mostly what I've read, mine has 10TPI and two little oil cups with spring loaded covers over the bearings.
Also I'm having trouble removing the gear from the leadscrew. It had a bolt and two washers in the end of it, removing it exposes the shaft and what looks like two woodruff keys? does it just need a little more time in the oil? I have removed the leadscrew. The left leadscrew bearing, though there's nothing stopping it, gets extremely tight if I move it as much as 1/16-1/8 of an inch to the right, I don't want to force it that way but I want it out or at least off the journal to clean.
Thanks to anyone who reads this, more so to anyone who is able to help.
|
To be honest it was over three years ago that I purchased the parts and also ordered several other parts at the time, IIRC the set was @ $45.00. Clausing is fairly easy to deal with but you need to ask for a quote first. Clausing :Phone: (800) 323-0972 email: info@...
Ken H in AZ
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Ken,? What? does? Clausing hit you up for a set? Might be "custom" , might be stock. Just curious.? Dave?
Sent from my T-Mobile 4G LTE Device
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Re: Concern with my Spindle
Hi Jody,? I just went down in the basement for a look.? I'd have to bring my .0001 indicator from work to be definitive but I kind of have zero. Radial or thrust.? Topped off the oil cups while I was at It! Mine drain around the same rate and there's plenty of total loss oil in the chip pan from various sources! Oil is cheap compared to parts. Couple pics. I really like the Fisso articulating arm. The one stuck to my Atlas is kind of nice too just not that nice. They're both very "experienced" though. Dave?
Sent from my T-Mobile 4G LTE Device
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-------- Original message -------- From: Jody <jp4lsu@...> Date: 1/23/19 17:36 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Concern with my Spindle
Good point Dave. I was in the middle of setting something up? in the chuck, and had the test indicator mounted in a QCTP holder.? I was setting up a piece in the 4 jaw and I inadvertently bumped the chuck with my arm and saw the needle move a good bit. So I purposefully tugged sideways on the chuck and saw the indicator move around 0.002.? My work piece was short but couple that with the amount of chuck hanging off the end of the spindle, I'm sure spindle movement appears exaggerated some. Also as you pointed out, the indicator was not on the headstock casting. I'll get the chuck off and check the spindle properly. I'm guessing the oil loss differential from the front to back bearings has to do with the metal dust caps sealing better on one end. I'm curious if other's oil cups are empty on the spindle each time they use it? Thanks, Jody
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my South Bend 9A has the same configuration , there are shim's
in the slit between the front bottom of the? cap & the spindle housing
.? there is a procedure online google "South Bend 9A head stock or maybe
??? ??? spindle adjustment " & something should show up so at least ya
can see how it's done on a South Bend lathe , not sure how similar? the
Craftsman/Atlas mite be
??? ??? YMMV
??? ??? animal
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On 1/24/2019 12:32 PM, Ken Harrington wrote: The bearings as Robert points out do not have shims nor is there a
"cap" there is however more what could be described as a clamp (see
photo, chuck side is the same). This clamp (please correct me if you
know the proper name) can be tightened but with great caution as the
clamps can brake/crack. Tightening will remove some of the slop in the
spindle, I would not use more than a firm hand on a screw driver to be
safe. Also see a photo of the replacement bearings with no "holes".
Robert, is there any known specifications for tightening the bearing
clamps, inch pounds, number of turns... or ?
Ken H in AZ_,_
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Forgot to add, Welcome to the group Don.
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The bearings as Robert points out do not have shims nor is there a "cap" there is however more what could be described as a clamp (see photo, chuck side is the same). This clamp (please correct me if you know the proper name) can be tightened but with great caution as the clamps can brake/crack. Tightening will remove some of the slop in the spindle, I would not use more than a firm hand on a screw driver to be safe. Also see a photo of the replacement bearings with no "holes".
Robert, is there any known specifications for tightening the bearing clamps, inch pounds, number of turns... or ?
Ken H in AZ
|
Re: Concern with my Spindle
??? ??? AIR they are still available from the big suppliers. $$$
of course!? Bill in Boulder CO USA
On 1/24/19 5:22 AM, Jody wrote:
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That's pretty cool looking.? On the 12" the belt adjust knob/bar
goes right over the top of the rear oil cup.? I actually have to
lift the knob/bar up to put oil in the cup now.? I would have to
cut the bar down and reinstall the knob to get this to work.
I've seen these things in older pictures of rotating equipement
though.? Cool stuff.
-Jody
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On 01/23/2019 11:30 PM, Steven H via Groups.Io wrote: Looks like you might get a hernia trying to move the
tailstock on that 20” Cincinnati lathe. Some large lathes
have a crank handle mechanism using the bed rack to move
the tailstock along the bed.
The tailstock on my 15" Sheldon is quite a beast, and getting it to move the first time in a session takes a little oomph. Once it has slid onto a film of oil, though, it glides with hardly more than fingerip pressure. I do have to disassemble it into the upper half and the lower half to take it off the bed, each half weighs close to 100 Lbs. I'd guess a 20" tailstock would be more massive. Jon
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Re: Concern with my Spindle
On Wed, Jan 23, 2019 at 6:36 PM Jody < jp4lsu@...> wrote:
I'm curious if other's oil cups are empty on the spindle each time they use it?
I have a 12" x 36 Atlas/Craftsman and the oil cup on the left side of the headstock uses a lot more oil than the cup to the right (toward the tailstock). Each has a felt purchased from Clausing. If remove the felt from the right cup, the oil runs through a bit more. I have to let the spindle run for an extended?period of time and see if I can feel or measure any difference in temperature on either side. In an hour turning session (intermittent running), the left cup might essentially run out while the right cup doesn't seem to use much at all.
I thought of finding a test tube of the right size to hold the felt and see how the oil flows through the felt in that situation. It's on the LLTTD (Long List of Things To Do ;-)
--
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Bill in OKC too
Ken H
Terry Lund