Replacing Bearings in a Bench Grinder

[Meldonmech]

Hi Guys
              I am attempting to remove the bearings in a bench grinder, and have struck problem. There is a  1/8  inch dia. roll pin driven into a blind hole in the shaft with only 85 thou protruding. I have tried the obvious pliers with nil success. Has anyone any bright ideas?

                                                 Cheers David

[doubleboost]

Mole grips
Drill behind it and punch it out
Weld a nut on to it
John

[John Rudd]

Buy a new grinder around £23 from toolstation......

[DavesWimshurst]

Grind or file level with surface of shaft. Remove shaft. Drill from back side of blind hole and punch out pin.

[Meldonmech]

Hi Guys
                 Thanks for the suggestions. I tried the mole to no avail, and decided to drill from the rear and punch the roll pin out. I set the shaft up in the dividing head on the mill, and found the center using a small drill, started the machine and just entered the hole to check running clear.  I stopped the mill withdrew the center drill and noticed a small bright witness on the roll pin, it was soft, what luck! so I drilled it out from the front. Then I set up again for the other roll pin, no such luck it was hard, progress was slow but the HSS drill was harder than the pin, and I just managed to drill it out before completely blunting the drill. Think I will replace the pins with silver steel pins.  Another job done.

                                                            Cheers  David

[John Rudd]

Thank goodness.......

Was thinking you might have to spend a few quid........