Inside bar width for different guages?

pbuehning · Oct 9, 2006

I have searched and can't find an answer. I'm doing maintance on my saws and one of the bars has been pinched a couple of times. What would the proper inside bar rail width be for .063 and .050 guage chain? I suspect the bar has opened and closed so I want to check the whole bar. Thanks for your help.

Kneejerk Bombas · Oct 9, 2006

Ummm...I'm only guessing here, but .063 and .050?

pbuehning · Oct 9, 2006

Ha, Ha, Seriously, wouldn't they need to be a hair bigger to prevent undue binding, friction or wear.

JeffHK454 · Oct 9, 2006

I just checked a new Stihl .063 gauge bar , actual bar measures .068 and that's done with gauge pins.

JH

pbuehning · Oct 9, 2006

Thanks jeff, that's what I was looking for - I just couldn't find it anywhere and didn't have a new bar around. Anyone have a new .050 that they can measure.

Ombesb · Oct 9, 2006

I checked a couple of different chains, the drive links seemed to pretty much follow spec. The clearance , so far, seems to be in the bar. I found two different bars , new, running about .007~,008 over. I could actually get an .050 chain to fit in an .043 bar. Snug for sure. Didn't run it, just tried it. Worn bars head on towards up to .020 over . Pretty loose by then. Hope that helps a bit. For what it's worth, I have tightened 2 bars down to .003 clearance and have ran them with no problems at all.