Preloading Logan Spindle Bearing Question

Preloading Logan Spindle Bearing Question

Post by Gunne » Fri, 17 Nov 2000 04:00:00



Im restoring a 11x24"   Logan 910, and removed the spindle for
inspection, and installing a  new belt, and would like to know the
proper way to set the bearing preload on this lathe. Both of the
bearings have spring washers under them, two each facing opposite
directions ><
I assume these are for preloading, but when I tighten the rear spindle
nut, its difficult to know when to quite. Ive considered indicating
the spindle nose and then pushing and pullling the spindle,. but with
the spring washers.. that would be pointless. The spindle nut is
..btw.. the***on flange for the Royal Collet closer...<G>

(found a complete headstock with minty gears.. complete with Royal
Collet lever collet closer.. has the 5C spindle nose, all adapters and
even had a collet, which when I pulled it out...had a stop in the
bottom of it...YAY!!! )

I even made chips today with it..YAY!!!!  
Now I have to figure out how to install the 1920 QC gear box Ive been
hoarding for a moment like this. The original lathe had change gears,
and I believe Im still missing the idler gear and hub..sigh....
The rear mounted motor was 208 3 ph, and I installed a 110 3/4hp
(THANK YOU JERRY!).. Ill have to muddle about a bit, figuring out how
to rig the drum switch for reverse though...swapping 5&8.. sigh again.

Anyone have a good used tailstock for this machine? It came with
production crossslide and turret, which Ill likely never use... or at
least..seldom

Thanks for the info.

Gunner

--
"Confronting Liberals with the facts of reality is very much akin to
clubbing baby seals. It gets boring after a while, but because Liberals are
so stupid it is easy work."  Steven M. Barry

 
 
 

Preloading Logan Spindle Bearing Question

Post by PLAlbrec » Sat, 18 Nov 2000 13:53:01


Quote:
>Anyone have a good used tailstock for this machine? It came with
>production crossslide and turret, which Ill likely never use... or at
>least..seldom

Can't help on the tailstock. I too have a production cross slide and the
turret. Never used the turret (well, the holes in the top are used to store
centers, allen wrenches, chuck wrenches, etc.) and I have a regular tailstock
mounted ahead of it. But I have used the production cross slide way back when
before I had a mill, and I made a massive cutoff tool holder that bolts to this
but not the compound cross slide. The production slide is I think a bit more
rigid than the combination of cross slide and compound.

Pete

 
 
 

Preloading Logan Spindle Bearing Question

Post by Scott S. Loga » Sat, 18 Nov 2000 04:00:00




Quote:
>Im restoring a 11x24"   Logan 910, and removed the spindle for
>inspection, and installing a  new belt, and would like to know the
>proper way to set the bearing preload on this lathe. Both of the
>bearings have spring washers under them, two each facing opposite
>directions ><
>I assume these are for preloading, but when I tighten the rear spindle
>nut, its difficult to know when to quite. Ive considered indicating
>the spindle nose and then pushing and pullling the spindle,. but with
>the spring washers.. that would be pointless. The spindle nut is

                 * *  Posted and E-Mailed  * *

First things first.  There should be Bellevilles only in front of the
rear bearing, nothing near the front bearing.

Second, the Bellevilles are installed wrong.  They should be installed
(ASCII drawing coming up):

   \/\/
   ||||
   ||||
   /\/\

Then, tighten the take up nut until it is solid.  There is a spacer,
nested inside the Bellevilles, that sets the preload by setting the
amount of compression.

--
  +--------------------------------------------+
  |     Scott Logan -  ssl "at" lathe.com      |
  |  Logan Actuator Co. http://www.lathe.com   |
  |                Chicago, IL                 |
  |++++++++++++++++++++++++++++++++++++++++++++|
  | Parts and Accessories for Logan Lathes and |
  |          Montgomery Wards Lathes           |
  | Logan-Lilly Mine Hoist Safety Controllers  |
  +--------------------------------------------+
            "Measure Twice, Cut Once"

        RCM FAQ - http://w3.uwyo.edu/~metal
 Metal Web News - http://www.metalwebnews.com/
Help squash SPAM: http://www.cauce.org/

 
 
 

Preloading Logan Spindle Bearing Question

Post by don satchel » Sat, 18 Nov 2000 04:00:00


OK guys, I 'still' have a tail stock for an 11" Logan, (came off a model
1940), I also have several other parts, from this machine.

If you are interested let me know

regards,
don

 
 
 

Preloading Logan Spindle Bearing Question

Post by Gunne » Sat, 18 Nov 2000 04:00:00




Quote:


>>Im restoring a 11x24"   Logan 910, and removed the spindle for
>>inspection, and installing a  new belt, and would like to know the
>>proper way to set the bearing preload on this lathe. Both of the
>>bearings have spring washers under them, two each facing opposite
>>directions ><
>>I assume these are for preloading, but when I tighten the rear spindle
>>nut, its difficult to know when to quite. Ive considered indicating
>>the spindle nose and then pushing and pullling the spindle,. but with
>>the spring washers.. that would be pointless. The spindle nut is

>                 * *  Posted and E-Mailed  * *

>First things first.  There should be Bellevilles only in front of the
>rear bearing, nothing near the front bearing.

>Second, the Bellevilles are installed wrong.  They should be installed
>(ASCII drawing coming up):

>   \/\/
>   ||||
>   ||||
>   /\/\

>Then, tighten the take up nut until it is solid.  There is a spacer,
>nested inside the Bellevilles, that sets the preload by setting the
>amount of compression.

Many thanks Scott... Sigh.. gotta take it apart once again <G> and
recheck it all.

One last question. How are the bearings in the pillow blocks in the
countershaft held in? One is toast from what I can see, and I might as
well replace them both.

Thanks!

Gunner

--
"Confronting Liberals with the facts of reality is very much akin to
clubbing baby seals. It gets boring after a while, but because Liberals are
so stupid it is easy work."  Steven M. Barry

 
 
 

Preloading Logan Spindle Bearing Question

Post by Gunne » Sat, 18 Nov 2000 04:00:00




Quote:
>OK guys, I 'still' have a tail stock for an 11" Logan, (came off a model
>1940), I also have several other parts, from this machine.

>If you are interested let me know

>regards,
>don

How much and in what condition?
--
"Confronting Liberals with the facts of reality is very much akin to
clubbing baby seals. It gets boring after a while, but because Liberals are
so stupid it is easy work."  Steven M. Barry
 
 
 

Preloading Logan Spindle Bearing Question

Post by Dave Hill » Sat, 18 Nov 2000 04:00:00


What else do you have?

Thanks,

Dave

Quote:

> OK guys, I 'still' have a tail stock for an 11" Logan, (came off a model
> 1940), I also have several other parts, from this machine.

> If you are interested let me know

> regards,
> don

 
 
 

Preloading Logan Spindle Bearing Question

Post by Gunne » Sun, 19 Nov 2000 04:00:00


Quote:


>> Anyone have a good used tailstock for this machine? It came with
>> production crossslide and turret, which Ill likely never use... or at
>> least..seldom

>You might give Dave Sobel a call on this - he may want to trade...I'm pretty sure He's got
>at least a couple of tail stocks.  201-768-9645

Thanks for the info. Much Obliged

Quote:

>> --
>> "Confronting Liberals with the facts of reality is very much akin to
>> clubbing baby seals. It gets boring after a while, but because Liberals are
>> so stupid it is easy work."  Steven M. Barry

>Well, what with being a card carrying dyed in the wool liberal, I'd really appreciate it
>if you'd keep your political opinions to yourself, or at least keep them in discussions
>related to politics. As I've said before, you are entitled to your opinions, and I am
>entitled to mine. HOWEVER, this is a metalworking newsgroup. When I asked why you thought
>it appropriate to post your political views in this group, you said something like
>"Because I feel like it."  Well fine. But please, give it a rest sometime. We can talk
>machinery all day long, but I find your signature quote offensive. If you don't give a
>damn about offending me (and others in this group, I'm sure), then up yours.

>P.

Humm... do I give a damn about offending Liberals? I sure do. I go to great efforts to do so as much
as possible for a number of reasons. As one of those <quote> "Redneck Gun owning, Rightwing
Extremist members of the evil Right Wing ***? (snip any number of Liberal insults to the
right)<quote/> I consider it my sacred duty to give***for tat.

Well then. If you willingly admit to being a Liberal.. all the power to you. I personally consider
this to be on the same level as those in Florida proudly proclaiming that they were too stupid to
punch a ballot correctly.. but I do respect a man whom can admit his mistakes.  In the spirit of
Bi-partisonship and good will, Ive changed my sig. Im sure you can appreciate the sentiments of this
one, and of course, its surely not in the slightest bit offensive for any freedom loving American.

Regards

Gunner

"If ye love wealth greater than liberty, the tranquility of servitude
greater than the animating contest for freedom, go home from us in
peace. We seek not your counsel, nor your arms. Crouch down and***
the hand that feeds you; and may posterity forget that ye were
our countrymen"    SAMUEL ADAMS

 
 
 

Preloading Logan Spindle Bearing Question

Post by Phillip Voge » Mon, 20 Nov 2000 15:30:08


Quote:

> Anyone have a good used tailstock for this machine? It came with
> production crossslide and turret, which Ill likely never use... or at
> least..seldom

You might give Dave Sobel a call on this - he may want to trade...I'm pretty sure He's got
at least a couple of tail stocks.  201-768-9645

Quote:
> --
> "Confronting Liberals with the facts of reality is very much akin to
> clubbing baby seals. It gets boring after a while, but because Liberals are
> so stupid it is easy work."  Steven M. Barry

Well, what with being a card carrying dyed in the wool liberal, I'd really appreciate it
if you'd keep your political opinions to yourself, or at least keep them in discussions
related to politics. As I've said before, you are entitled to your opinions, and I am
entitled to mine. HOWEVER, this is a metalworking newsgroup. When I asked why you thought
it appropriate to post your political views in this group, you said something like
"Because I feel like it."  Well fine. But please, give it a rest sometime. We can talk
machinery all day long, but I find your signature quote offensive. If you don't give a
damn about offending me (and others in this group, I'm sure), then up yours.

P.

--
Phillip M. Vogel, President   | "It's not what you've been taught,
Bartal Design Group, Inc.     |  it's what you've learned." (me)
318 Marlboro Road             | +1-201-567-1343 FAX:+1-201-568-2891

 
 
 

Preloading Logan Spindle Bearing Question

Post by Scott S. Loga » Mon, 20 Nov 2000 04:00:00




Quote:
>One last question. How are the bearings in the pillow blocks in the
>countershaft held in? One is toast from what I can see, and I might as
>well replace them both.

The snap rings on the countershaft keep the bearings, and the shaft in
place.

--
  +--------------------------------------------+
  |      Scott Logan -  ssl "at"lathe.com      |
  |   Logan Actuator Co. http://www.lathe.com  |
  |                Chicago, IL                 |
  |++++++++++++++++++++++++++++++++++++++++++++|
  | Parts and Accessories for Logan Lathes and |
  |          Montgomery Wards Lathes           |
  | Logan-Lilly Mine Hoist Safety Controllers  |
  +--------------------------------------------+
            "Measure Twice, Cut Once"

        RCM FAQ - http://w3.uwyo.edu/~metal
 Metal Web News - http://www.metalwebnews.com/
Help squash SPAM: http://www.cauce.org/