
The Ultimate Guide to Chainsaw Guide Bars
Posted July 31, 2015 by Jacks Small Engines 3 CommentsSprocket bars, solid nose bars, carving bars, narrow and wide nose bars….what’s the difference?
I’m here to tell you!
While all bars are good bars, they all have different purposes.
Sprocket nose bars allow the chain to move more quickly around the nose of the bar with a minimum loss of heat and power.
Replaceable sprocket nose bars have replaceable sprocket noses. This is useful if you decide to change the pitch of the chain you are running. And if the sprocket gets damaged, only the nose needs to be replaced rather than replacing the whole bar, which is much more cost effective!
Solid nose bars are used for cutting in very sandy, gritty, dirty conditions. They are also more robust than sprocket nose bars. The only downfall of these bars is that they tend to be more expensive and they can get very hot and leach some of the saw’s power.
Carving bars are used for exactly what they sound like, carving wood! These bars are slender solid nose bars that are used on smaller chainsaws. They are light weight and have a small radius nose. The small radius of the nose make them very good for boring and carving wood, making it very useful as a wood working tool. These chains also have a lot more slack and can run as small as ¼” for detailed carving work.
Narrow nose bars are good for reducing the chance of kickback while wide nose bars have a much better boring performance. Both of these bars are variations of the solid nose, sprocket nose, and replaceable sprocket nose bar.
As you see, there are many types of guide bars available, and they all have specific purposes and certain pros and cons.
Depending on what job you are doing with your saw will determine which bar you use, now you know what bar does what and can make your choice!
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3 Comments
John Ferrigan
on April 10, 2018 at 5:52 pmHello there, i have an old but trusty Genuine Stihl 17″ O8S 076 Chainsaw. I want to know what would be the cheapest guide bar i could purchase for my saw.
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Laura
on November 29, 2018 at 11:17 amThanks for the explanation of types of bars. I looked through 20 blogs before I found a straightforward answer.
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Tom
on May 9, 2020 at 1:09 pmI am replacing the 16″ bar on my Homelite Super 2 saw. The replacement bar I’ve purchased is not as wide as my original. The original is 2 9/6″ wide while the replacement is only 2 1/8″.
I’ve looked at manufacturers’ websites and haven’t found any discussion as to why the replacement is less robust. The best I can figure is that it is suppose to be more maneuverable, but saws cut straight so that doesn’t make sense to me. It looks a little like a toy and I’m reluctant to use it.
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