Today's Message Index:
----------------------
1. 12:05 AM - Re: Re: Bronze-Brass Bearings (Clif Dawson)
2. 04:45 AM - Re: Re: Bronze-Brass Bearings (Jack Philips)
3. 08:56 AM - Re: Re: Bronze-Brass Bearings (helspersew@aol.com)
4. 11:22 AM - Re: Re: Bronze-Brass Bearings (Mark Lisa Kellyn Bowler)
5. 01:22 PM - Re: Bronze-Brass Bearings (taildrags)
6. 07:54 PM - Re: Re: Bronze-Brass Bearings (Clif Dawson)
7. 08:22 PM - Re: Bronze-Brass Bearings (taildrags)
Message 1
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| Subject: | Re: Bronze-Brass Bearings |
Check to see if the end of the axle was flared a bit in cutting it off.
Gently file the end, not the cut face but the axle surface. You
should smooth the bearing surface anyway. Cut 220 sandpaper
in strips lengthwise. Sand the surface in the same way shoeshine
boys did in all those old movies. Sand, turn axle, sand, turn axle,
etc., etc., then go to 400 grit. Very little gets removed but maybe
enough to clear the bearing.
Clif
www.clifdawson.ca
Fill what's empty, empty what's full, fart joyously, carry matches.
>
> I got my bushings from McMaster-Carr with 1.5 inch ID. My axle is also 1.5
> inch OD. So there is no clearance and the bushings won't slide onto the
> axle. How do I remedy that situation? Back to the machine shop or can I
> make the bush ID bigger myself?
>
> --------
> Vincent Dunn
Message 2
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| Subject: | Re: Bronze-Brass Bearings |
Have you actually measured the diameters with a micrometer? How much
interference do you have? If just a few thousandths, you can take that off
the axle with emery cloth fairly easier. Much easier to accurately reduce
the axle's diameter that to increase the bushing's diameter.
Jack Phillips
NX899JP
Smith Mountain Lake, Virginia
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Vincent Dunn
Sent: Saturday, August 18, 2018 11:45 PM
Subject: Pietenpol-List: Re: Bronze-Brass Bearings
--> <vincentkdunn@yahoo.com>
I got my bushings from McMaster-Carr with 1.5 inch ID. My axle is also 1.5
inch OD. So there is no clearance and the bushings won't slide onto the
axle. How do I remedy that situation? Back to the machine shop or can I make
the bush ID bigger myself?
--------
Vincent Dunn
Salem Oregon
vincentkdunn(at)yahoo.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482533#482533
Message 3
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| Subject: | Re: Bronze-Brass Bearings |
Are you sure the axle won't fit into those bearings? I just looked at Mcmaster's
catalog, and the sell oil-impregnated bronze bearings "For 1-1/2" shaft" and
a bunch of other sizes. These will slip-fit onto all the designated sized shafts
easily.
Dan Helsper
Loensloe Airfield
Puryear, TN
-----Original Message-----
From: Clif Dawson <cdawson5854@shaw.ca>
Sent: Sun, Aug 19, 2018 2:06 am
Subject: Re: Pietenpol-List: Re: Bronze-Brass Bearings
Check to see if the end of the axle was flared a bit in cutting it off.
Gently file the end, not the cut face but the axle surface. You
should smooth the bearing surface anyway. Cut 220 sandpaper
in strips lengthwise. Sand the surface in the same way shoeshine
boys did in all those old movies. Sand, turn axle, sand, turn axle,
etc., etc., then go to 400 grit. Very little gets removed but maybe
enough to clear the bearing.
Clif
www.clifdawson.ca
Fill what's empty, empty what's full, fart joyously, carry matches.
>
> I got my bushings from McMaster-Carr with 1.5 inch ID. My axle is also 1.5
> inch OD. So there is no clearance and the bushings won't slide onto the
> axle. How do I remedy that situation? Back to the machine shop or can I
> make the bush ID bigger myself?
>
> --------
> Vincent Dunn
Message 4
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| Subject: | Re: Bronze-Brass Bearings |
Great practical advice Clif!
M. Bowler
Broughshane,
U.K.
Please help spread the word about the Grasshopper Aeroplane Factory - have
a look on Facebook at -
https://www.facebook.com/UlsterglidingBellarena/
________________________________
From: owner-pietenpol-list-server@matronics.com <owner-pietenpol-list-serve
r@matronics.com> on behalf of Clif Dawson <cdawson5854@shaw.ca>
Sent: 19 August 2018 07:05
Subject: Re: Pietenpol-List: Re: Bronze-Brass Bearings
Check to see if the end of the axle was flared a bit in cutting it off.
Gently file the end, not the cut face but the axle surface. You
should smooth the bearing surface anyway. Cut 220 sandpaper
in strips lengthwise. Sand the surface in the same way shoeshine
boys did in all those old movies. Sand, turn axle, sand, turn axle,
etc., etc., then go to 400 grit. Very little gets removed but maybe
enough to clear the bearing.
Clif
www.clifdawson.ca<http://www.clifdawson.ca>
Fill what's empty, empty what's full, fart joyously, carry matches.
>
> I got my bushings from McMaster-Carr with 1.5 inch ID. My axle is also 1.
5
> inch OD. So there is no clearance and the bushings won't slide onto the
> axle. How do I remedy that situation? Back to the machine shop or can I
> make the bush ID bigger myself?
>
> --------
> Vincent Dunn
Message 5
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| Subject: | Re: Bronze-Brass Bearings |
Clif; your hand-sketch (very nice, BTW) raises a question about bench vises. I've
seen some that have a set of gripper teeth below the flat vice jaw faces,
and those teeth are designed to grip round stock like rod or pipe. My little
vise doesn't have those teeth so I usually use the Armstrong technique when clamping
round stock in my vise, unless it's thinwall material or has smooth-finished
surfaces that must be protected. In those cases, I just have to use whatever
is at hand to keep the jaw faces from direct contact with the work, and
that usually means working gently or living with some rocking or rolling of the
work in the vise. In the case of an axle like this, would you put some thin
leather in the vise jaws to grip the axle, or do you have any nifty tricks for
holding round stock securely in the jaws?
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power, 72x36 Culver prop
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482552#482552
Message 6
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| Subject: | Re: Bronze-Brass Bearings |
Sorry, no nifty tricks but the axle doesn't have to be horizontal.
With the axle verticle and tight against the body of the vice under the jaws
it won't move. I use a couple of things. One is scrap aluminum
angle on the jaws, the other is some sheet aluminum clamped then
bent over the jaws, top and sides. Leather is fine. You could wrap it
around the axle and zapstrap it.
Anyone with those pipe jaws--they will dig into the pipe weakening it.
Clif
Skeptic potential customer asking, " If that penetrating oil is so good,
how's it staying in the can?"
would you put some thin leather in the vise jaws to grip the axle, or do
you have any nifty tricks for holding round stock securely in the jaws?
>
> --------
> Oscar Zuniga
> Medford, OR
> Air Camper NX41CC "Scout"
> A75 power, 72x36 Culver prop
Message 7
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| Subject: | Re: Bronze-Brass Bearings |
Clif; thank you. And I know I'm getting way off-topic here, but seeing the nice
wood cabane struts and other details on your airplane, in Canada how does your
CAA (or Transport Authority, or whoever it is that deals with experimentals)
look upon deviations from the plans? In some other countries, every single
little thing has to get approval or it won't fly, literally. How much leeway
do you have?
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power, 72x36 Culver prop
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482564#482564
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