Some unscrew
Some are just drifted in
Some are blind at narrow end.

If you need it apart and there is nothing to loose…
Try kettle of hot water…or simmer …this might breakdown any thread lock…with caution incase the thing has no breather….
But yes sometime you will need to just grab it and twist…
If the plug defo seperate maybe a reverse ( left hand) drill to either drill out or unscrew…
Maybe saw off plug and remake.. ( I fear this is where you may end up. So maybe go there first)

As is a little M2… it might be all assembled from front…

Two allen keys “crossed”..is a good temp key.
Had to strip/clean many of these. . (About five a month. ..)…until I changed the “grease” screw with a nipple and gave each a shot of oil daily ( like it says to)…
Oil washes suds and crud out of frount seal…and extends the life wonderfully. .
But then we were using these 20 hrs a day at 2-3 thousand rpm……
But seriously never wore out bearings when lubed but let suds wash the oil or grease out and you can kiss them bearings goodbye.

Edited By jason udall on 18/11/2014 18:26:53

Mine is simply pressed in, all you can see is the shank going straight into a bearing which is itself pressed into the body. I have no idea of internal construction, but it is shake free. I can't see how you could get it apart without butchering the shank so you can pull it out.

Neil

Those skoda..centers if the same as we used are the as I described above…
Front screw/oilseal/ 2-3 mm needle rollers/ thrust race./ and at little end single row ball race..held onto shoulder with “e” clip..as you say they cost little more than the cost of good bearings replacing those…but used to wear well if kept suds free with lube..

Good value those skoda centers.

Re Gepy…
Now theres a center…
From the stable that sells on detail of construction ..not price..not spec…but detail…