bar question

[balaban9331]

GB sells a bar that is .063 ,3/8 i'm looking for .063 .404.how much difference does this make?thanks.

 

[Bill G]

Originally posted by balaban9331
GB sells a bar that is .063 ,3/8 i'm looking for .063 .404.how much difference does this make?thanks.

Difference in what ?


If you are referring to fit it makes a huge difference

If you are talking about price then little to none.

Weight, well that is debatable

If you are talking about availability then that depends on where you live or if you want to buy online.

If you clarify your post you will get the responses you desire.

Bill

 

[balaban9331]

090 bar

the difference i'm talking about is from 3/8 to .404.now i know that there is a size difference,i might be new,but i'm not stupid.only reason i asked was to get some responses from you guys.it's hard every time you need to get some info to look it up on the web.it's a pain in the ass.when i found this forum i saw it as an opportunity to ask questions and get answers from people who work with saws every day.making a decision about a bar or sprocket or sizes is something that i'd rather consult with you guys rather than have something go wrong.i'm sure you would agree.thanks,robert.

 

[Gypo Logger]

Hello Robert, 404 seems to lend itself better to milling than does 3/8", especially with longer bars. Milling is not only demanding on the motor, but also on the chain. The big issue is getting enough lube to the chain. Alternate stretch and shrink of the chain causes the most damage and irregular kerf. The best milling chain seems to be 404 with the cutters ground at 0 degrees and rakers at 25thou. The cutters must be modified on a grinder. 3/8" works well though on smaller wood with a beam machine and cutters modified as above, but stock 73-75 LG works fine on smaller wood.
John

 

[Newfie]

Nobody said you were stupid,Robert. Properly worded and thought out questions will receive similar answers. Your type of question will get the kind of answers you received. Apparently Maas can do math faster than me and beat me to my original response.

 

[sedanman]

Chain is measured at the drive link. The distance between any three consecutive rivets divided by 2 is the pitch, this works out to the distance between the drive links. Numbers like 1/4" .325 3/8 .370 .375 and .404 are pitch numbers. The width of the link is called guage numbers like .050 .058 .063 are guage numbers. For a bar to fit a saw the bar mount pattern has to fit the saw and the pitch of the chain has to be the same as the pitch of the drive sprocket and the pitch of the sprocket on the nose of the bar. And finally the guage or thickness of the drive links on the chain has to match the width of the groove in the bar.

.063 3/8 bar will not accept .063 .404 chainand vice versa as the sprocket will not mesh with the chain

 

[balaban9331]

sedanman/gypo/newfie

now that's the type of answer i was looking for.as a professional i have to answer the same questions over and over again for my apprentices,point being is i answer the questions.thing that i forget is i usually bust their b@lls while doing so.i've forgotten what it feels like.the thing as you all know,saws are dangerous,especially for the inexperienced.firing one up once in a while or handling an axe does not make you a pro.but i want to learn to do certain repairs myself and as colorfull as you guys can be,you know what you're talking about.so i'll keep asking the questions.thanks,robert.