bar

[darrenjttu]

Beside the thickness and sprocket of the bar is there and advantage to having a bar that is slighly curved on top and bottom rather than staright. Does the shape of the bar have anything to do with the performance?

[OAP]

No, keep it in good order(file off the burs and keep it greesed) every time you have a chance. If you can keep your chain sharp the bar will last a lot longer obviously because you will not lean on it or dog it in the cut.

[shelbycharger400]

I personally like wide bars, but they are all narrow now.  wide bars cut straighter but tend to pinch up easier i guess.

different tips...  their is a few for carving ect.   your really not to be using the tip in cutting up trees/ felling .   usin just the tip in cutting firewood, burns out the bar, also sets up the chance of a kickback

[Al_Smith]

That design of bar is often refered to as a "salmon belly " .

One idea is it takes less power to pull a chain in a circle so to speak than in a narrow shape as most bars are made today .

They still use a type such as this for one cut type saw racing .For multiple cuts like we do on the east coast they are at a disadvantage because of the thickness .You have to pass that thick wide bar through the cut before advancing to the next which takes up time .

Another thing is a wide nosed bar is slightly more prone to kick back .

[AdkStihl]

Belly bars are used in racing / hot saw competitions due to the fact that you can run much less chain tension. Less tension = Less friction.

[Al_Smith]

On single cuts yes ,on multiple cuts not usually  as a rule .

On race bars you can order just about any thing you desire through Cannon .Belly ,narrow ,even with a genuine roller nose if you want .Costs a plenty though .

[AdkStihl]

On single cuts yes ,on multiple cuts not usually  as a rule .

On race bars you can order just about any thing you desire through Cannon .Belly ,narrow ,even with a genuine roller nose if you want .Costs a plenty though .

Sure would like a Cannon for my 044 & my 346.
Guess I should play the lottery :-\

[Al_Smith]

Much ado about bars IMO .Most decently made bars will give long service life if they get oiled .

I'm not certain how much a person can believe about information over the internet .I've for example heard stories of Canadian cutters who could wear out a bar in a week and my only thought was they must have been cutting sand stone .