Wednesday, July 2, 2008

[papercreters] Rubber Tank to Differential Seal (Flush Mount) -was- Salvaged Centrifugal Pumps

Okay, you asked for it...

Here's a completely UNTESTED idea for sealing the differential at the
bottom of a tow mixer tank.

The key is to have the tank mounted high enough that the face plate
at the business end of the differential is flush with the bottom of
the tank. There may need to be some kind of shaft extension.

http://ph.groups.yahoo.com/group/papercreters/photos/view/8777?b=5

The rubber seals shown in the diagram are recycled innertube.

The fender washers can be custom made from any chunk of steel or
aluminum.

The basic idea is to sandwich a rubber seals between strong metal
plates (fender washers). The hole size in the fender washer should
be as small as reasonable while not dragging on the shaft.

The hole size in the Rubber Seals should fit very snugly around the
shaft. Don't be afraid to lubricate the rubber to get it installed.

I have another similar idea for a differential that is not flush
mounted to the bottom of the tank. I'll post about it in a second
post and make a second diagram.

--- In papercreters@yahoogroups.com, "Nick Boersema" <picknick@...>
wrote:
>
> Keep posting these ideas. One of the reasons I have been stalling
is
> because although I now have most everything for my tow mixer I
don't really
> like the concept of the deferential seal at the bottom of the tank
and felt
> I could do better but just had yet to decide which way to go. I
like this
> latest idea very much post some pictures of these pumps if you go
look at
> them.
>
>
>
> SG I get great ideas even from your rare half back ones so keep em
coming.
> :-)
>
>
>
> Nick
>
>


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