I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?

Thanks.

John Doe fired this volley in news:4f67b801$0$860
:

I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?


Belville washers. You can stack them to any height you wish, and get them
in anything from mere foil to structural thicknesses.

LLoyd

"John Doe" wrote in message
.com...

I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?

Thanks.
__________________________________________________ ______
Maybe a piece of rubber or urethane.

In article ,
John Doe wrote:

I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?

Thanks.

Look into Belleville disc springs (aka washer springs)

McMaster (among many other places) sells them, and has a brief
introduction to them if this link is any good (or go search their site
if it's bad - sometimes they don't like to paste right)

http://www.mcmaster.com/#belleville-...prings/=gqic79

McMaster is often fast, often has stuff, but is not always cheapest if
you are trying to squeeze the last penny out. They are not infrequently
cheap enough if you hunting for the absolute best deal involves spending
time that's worth anything on the search.

For instance 9712K69 - Qty. 12 3/8 ID 3/4 OD 166 lb working load each
with a height of 0.055 inches for $4.12 - you can fit 9 in 1/2" as an
inverted stack, giving a deflection at working load of 0.099 inches for
the stack. I'm assuming you have 3/4 inch width available, and are
trying to fit 1/2" height. Other options are available if that's not the
case.

--
Cats, coffee, chocolate...vices to live by
Please don't feed the trolls. Killfile and ignore them so they will go away.

John Doe wrote:
I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?

Thanks.

How much travel do you need from the spring? If your just looking for
shock absorption I would use some elastomer compound. You can get it
with a lot of different compression rates and then you just mold it in
place. Sort of like Shoe goo or silicone based RTV

--
Steve W.

On 3/19/2012 5:49 PM, John Doe wrote:
I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?

Thanks.

You could devise a lever operated suspension utilizing a torsion bar for
a spring. That way, you could adjust it and create the whole new
industry manufacturing skate suspensions. ^_^

TDD

In rec.crafts.metalworking John Doe wrote:
I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?

Thanks.

Would something like rubber work? Bellville washers are great for
compression but offer no stability otherwise.

Cydrome Leader fired this volley in news:jk8md0
:

Bellville washers are great for
compression but offer no stability otherwise.


What does that mean? They work like any other spring, though constrained
differently.

I use them all the time as mold cushions on pressing equipment.

LLoyd

Is it the subject matter, Marbury? You recently replied to an
off-topic post crossposted to, of all places
(24hoursupport.helpdesk).

alt.home.repair,uk.d-i-y,uk.rec.cars.maintenance,rec.woodworking,24hoursu pport.helpdesk

Subject "Bending 3mm metal puzzle"

Your reply about an aluminum kitchen saucepan had nothing to do
with woodworking, car maintenance, or the chock-full-of-trolls
helpdesk group.

--


"Mike Marlow" mmarlowREMOVE windstream.net wrote:

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From: "Mike Marlow" mmarlowREMOVE windstream.net
Newsgroups: alt.home.repair,rec.crafts.metalworking
References: 4f67b801$0$860$c3e8da3$9b4ff22a news.astraweb.com XnsA01BC24581EF0lloydspmindspringcom 216.168.3.70
Subject: 160 pound spring for a 1/2 inch gap?
Date: Mon, 19 Mar 2012 21:57:07 -0400
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Lloyd E. Sponenburgh wrote:
John Doe jdoe usenetlove.invalid fired this volley in
news:4f67b801$0$860 $c3e8da3$9b4ff22a news.astraweb.com:

I want to put a spring under the heel of my inline skate. But
there is only a 1/2 inch clearance, and it needs to be a
heavy-duty spring. Should I consider using a spring steel flat bar
or similar, instead?


Belville washers. You can stack them to any height you wish, and get
them in anything from mere foil to structural thicknesses.

LLoyd

You guys seem to have an interesting conversation going on, but why are you
cross posting it to all of the irrelevant groups? I've stripped
rec.woodworking out of this reply, and would have stripped others but I
don't know from where you are generating this discussion. Please be
considerate and post/reply only to the relevant groups. This whole thread
which was started by "John Doe" was abusive of usenet protocols, so why not
reign it in and keep it within your own area of interest/conversation?

--

-Mike-
mmarlowREMOVE windstream.net

"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote:

Cydrome Leader presence MUNGEpanix.com fired

Bellville washers are great for compression but offer no
stability otherwise.


What does that mean?

I think he is talking about how the suspended wheel functions,
like how it is held upright. I need to carefully consider that, if
I do it.

Thanks to the pinpoint replies.

--



They work like any other spring, though constrained differently.

I use them all the time as mold cushions on pressing equipment.

LLoyd

Ecnerwal MyNameForward ReplaceWithMyVices.Com.invalid wrote:

Look into Belleville disc springs (aka washer springs)

McMaster (among many other places) sells them, and has a brief
introduction to them if this link is any good (or go search
their site if it's bad - sometimes they don't like to paste
right)

http://www.mcmaster.com/#belleville-...prings/=gqic79

McMaster is often fast, often has stuff, but is not always
cheapest if you are trying to squeeze the last penny out. They
are not infrequently cheap enough if you hunting for the
absolute best deal involves spending time that's worth anything
on the search.

For instance 9712K69 - Qty. 12 3/8 ID 3/4 OD 166 lb working load
each with a height of 0.055 inches for $4.12 - you can fit 9 in
1/2" as an inverted stack,

You mean like stacking them in alternating directions, one facing
up and then the next facing down and so on.

giving a deflection at working load of 0.099 inches for the
stack.

What is "deflection" in this context. Is it the amount that the
stack moves to the side? Is it compression? A compression of 1/10
inch?

Also, what is the meaning of "low cycle" in this expression
"low-cycle die press applications such as trimming and stamping".
I would guess that means "few cycles" or "slow cycles" but I don't
know what machine they're talking about.

Thanks.

--












I'm assuming you have 3/4 inch width available, and are trying
to fit 1/2" height. Other options are available if that's not
the case.

What is "deflection" in this context.

According to McMaster, it is the percentage of spring compression
at maximum load.

http://www.mcmaster.com/#about-die-springs/%3dgqyj15