Paper Washer

The following picture is the split casing.

The paper washer will be putted in the split surface.

Hi Tony,

You could try here:

http://www.sealinfo.com/index.cfm?objectid=6F328462-E081-29B8-240194B56F114A35

Hope this helps

Drew

Thanks for you kindly response,but I can not get the thickness on the site.I want 0.76mm thickness washer.

What tolerance do you have on the 0.76mm? If you can use 0.75mm, then you could try here:

http://www.jameswalker.biz/jwco/categories/compressed_fibre_jointings.html

They have 0.75mm in the 'Sentinel' brand.

Drew

Is this just a spacer of high density fiber for shipping purposes?. It must not stick to the parts?

Why muct it be .76 mm, it can be almost any thickness.

Seems to me you should be able to find such fiber in chines. It can be a non woven synthetic felted stuff, like tyvek.

You should be able to get it in china , why exactly 0.76mm , even 0.75 or 0.8 should do , these are too miniscular considering machineries your showing

are you needing to maintain the gap for hole alignment after reassembly?

Have the sheetmetal shop punch out a jig for you.

Man I'm tired.

It sounds like wealdcn017 is using paper as a consumable shim while machining, to displace the gap where a rubber seal will go. Seems like there should be a better way.

Brad

Right,because the rubber seal is 0.76mm when assembling,so we have to use the same thickness washer to machining the holes.The tollerance is 0.025mm,so we can not use 0.75mm washer.

That's what I figured. As a machinist I suggest taking the time to jig up some device that will allow you to clamp the two pcs together while separated by .076 gage pins or such.

Bend a pair of contours that are the profile of your housing at the split. Say something like a 2in wide aluminum 1/2" thick or so with a series of .076 pins in a straight line hole pattern press-fit in. Now push the 2 housings together and secure against the pins. Perform machining ops.

Even if you are machining one half housing at a time a similar device should be workable.

Hope this helps.

cr3

A rubber seal will deform more than .01 mm when placed into service.

If the tolerance is .025 MM, then .75MM shim is within that tolerance of .725MM to .775MM

In addition, if you are drilling bolt through holes, the tolerance is unimportant and you can bolt the parts directly together, properly aligned, and drill through until done.

Sometimes people include specs that are not important