bearing seal

Jul 19, 2013 42 Replies

I got to the bottom of my CNC mill trouble...



I need an extremely odd size bearing seal. No way will anyone halfway close to me has this. What's you favorite online specialty bearing place?



The particulars. bearing seal OD 2.687" (caliper on bent seal - may be off a bit) rotating shaft size 1.567" (mike)



seal height (caliper on bent again) 0.375"



Numbers on seal ? 26915638 R4 (can't make out first character)



My problem, the mill leaks oil like crazy and slings all over the shop. Somebody has been there before me and put some sort of sealant on the seal's OD to the AL housing. I think this is where the leak is, the rubber looks great. Anyone ever used a sealant on a seal?



Karl



Both Harwal and Chicago Rawhide (SKF) show candidates:

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On my old truck axle lube was leaking onto the brake shoes, the seals were good, but there was a gouge in the housing that was letting lube past the outside of the seal. A bit of red Permatex RTV solved the problem.

Thanks Ned and Pete. Part is on order and I'll pick up the permatex at the local auto parts store.

Karl

Oh, yeah. I used Elephant Snot (3M Super Weatherstrip Adhesive), various types of RTV, pure silicone sealant, etc. on the outside of engine seals all the time, when I wrenched. Clean the mating parts well with the proper solvent, goop 'em up (usually the corner of the seal/flange OD) and tap 'em in. To make it work properly, all the oil has to be removed from that junction. I've seen people goop the seals but not wipe the drip of oil off the mating surface, and the new seal kept up the leak.

Match the sealant to the max temperature and the type of lubricant involved for the best results.

Where do you keep the Elephant?

Yep, I knew about the oil thing, Brake clean is my friend.

I bet the spindle bearings sees 200F when running at 4K rpm. What's you're favorite goop at this temp.?

Karl

In the medicine cabinet, of course.

In the bottle of course!

After work..he can often be found in the Elephant Bar.

You must take a LOT of drugs!

Is that anywhere close to the Grisly Bar?

You need the Red RTV used to seal in fiberglass ropes to seal wood stoves.

I found them in hardware stores in Ca. It is high temp.

Another source is the auto stores (one guesses) - new Heads require the gasket to be sealed down with an RTV. My Vortec engine on my Chevy Truck uses it.

Martin

"Michael A. Terrell" on Sat, 20 Jul 2013

11:50:20 -0400 typed in rec.crafts.metalworking the following:

I try, but I can't seem to keep one in the Refrigerator.

Maybe if I made a Peanut butter Pizza, it'd stay.

-- pyotr filipivich "With Age comes Wisdom. Although more often, Age travels alone."

kiddy corner down the street.

Didn't elephant jokes go out in the sixties?

I won't be sixty until the week after next.

Too many, for too many health issues. A literal handful at bedtime, It's hard to hold them all in one hand to swallow them. :(

Aren't you afraid the kiddies will hurt the grisly? ;-)

Of course not! They prefer 100 degree days. Do you have any idea how hard it is to de-ice their trunks?

Not for long, and they would go on a killing rampage after the peanut butter got stuck to the roof of their mouth.

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