MadModder
The Shop => Tools => Topic started by: Meldonmech on August 31, 2013, 08:06:06 AM
-
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
-
Mole grips
Drill behind it and punch it out
Weld a nut on to it
John
-
Buy a new grinder around £23 from toolstation...... :coffee:
-
Grind or file level with surface of shaft. Remove shaft. Drill from back side of blind hole and punch out pin.
-
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
-
Thank goodness....... :drool:
Was thinking you might have to spend a few quid........ :lol: