Hercus front oiler thread pitch and dimensions?

[neevo]

I've got an old (1945) Hercus 9" Model C. Popped in to see the chap from Australian Metal Working Hobbiest and bought some oiler caps (silver bits below), however he suggested making the inserts to mount them out of brass.

He mentioned the size and pitch but I cannot remember what it was. Anyone able to help?

Eg:

[pipeclay]

Should be either 1/8" BSPT or 1/8"BSPF.

[neevo]

You're turning into my Hercus guardian angle pipeclay. Don't suppose you know what those brass fittings are called do you? Cannot find them after a quick eBay search.

[pipeclay]

They are referred to as Oil Gits,they can be expensive, if at all possible you would be better off money wise making them yourself.

[neevo]

Appreciate the inputs. Think I will see if I can adapt something cheap or look to make something from scratch after checking the pitch.

[pipeclay]

Probably the easiest choice might be to get a 1/8" nipple either the BSPT or BSPF and an end cap.

Screw the end cap onto the nipple,you may need to burr/damage the outer thread of the nipple slightly to stop the cap screwing on to far,then after applying a little thread tape to the outer thread of the nipple,screw the cap on, insert the fitting into the Headstock and see what flat on the End cap lines up best to get your oil filler cap Horizontal and Vertical and then mark this spot for drilling.

Then just drill through the correct size to fit the filler plug and jobs done.

For the End cap it would not matter if it isnt BSPT or BSPF.

[Ueee]

This what your looking for?
http://www.ebay.com.au/itm/Machine-P...item5405a52784

Or do you have the oilers ad just need to make adapters to fit them into the H/S?

Ew

[neevo]

Nah, needs to be a 90 degree angle as the oiler hole is on the front of the headstock.

I am looking to replace the flip up oilers on top of the headstock and motor arm for 4 of these:



Should make keeping the spindles lubed a bit easier.

[pipeclay]

If you buy those make sure you get good quality and not something cheap.expect to pay around $30 each or more for something decent.

[neevo]

What's the issue with the cheapies?

[pipeclay]

Without going into great detail, lets just say not fit for purpose.

[neevo]

Poop, isn't that always the case. I assume these work well if you get good ones?

[pipeclay]

Yes they would work.

By all means if you wanted to try the cheaper drip oilers give them ago.

Its only my opinion anyway.

Are you intending running this machine in a workshop type situation where it may be running 6 to 8 hrs/day.

If not the drip oilers may be a bit of over kill.

You mention the motor shaft bearings,are you referring to the countershaft pulley bearings.

As long as you oil the bearing points on the lathe prior to starting work and every couple of hours if using the lathe constantly you shouldn't have a problem.

If on the other hand you intend running the lathe faster than it was designed for, more regular lubrication intervals would be required,but then it could also increase wear on the bearing surfaces.

[neevo]

Probably overkill for my needs then. I expect to use the lathe about 1hr every few months

[Ueee]

I bought some cheap drip oilers a while ago, they are really not worth it. Sometimes they don't drip, and they always seem to empty when they are off....

Try an Ebay search for "oil cup spring" http://www.ebay.com.au/sch/i.html?_o...pring&_sacat=0

Hope that helps.

Ew