Not really because the width of the bar influences the DL count as well.I’m also curious to know if there’s a way to measure the bar length to figure out how long the chain needs to be.
And, different saws have a different set back from the front based on the chain tension mechanism, bar stud position, etc. Nothing seems to be standard. To make matters worse, the 20" bar made by one MFG may not even equal the length of a 20" bar made by another.Not really because the width of the bar influences the DL count as well.
Now that you say that about the 20” bar I see what you’ve talking about with different makes. I’ve experienced that one while messing around in the shopAnd, different saws have a different set back from the front based on the chain tension mechanism, bar stud position, etc. Nothing seems to be standard. To make matters worse, the 20" bar made by one MFG may not even equal the length of a 20" bar made by another.
This is why I wanted to start this thread. ALL THIS INFORMATION YALL HAVEThat's why we useDL counts.
STIHL MS250 with a "16-inch" bar (small mount) uses 62 drive links of .325 / .063 chain.
STIHL MS260 with a "16-inch" bar (large mount) uses 67 drive links of the same chain.
Some "16-inch" ECHO OEM bars take 57 DL of 3/8 low profile chain, so that you buy replacement loops from their dealers, instead of the 56DL loops available everywhere else ('S56').
Change a drive sprocket and you may need to add or subtract a link or two.
Philbert
Very good summary, Philbert.That's why we useDL counts.
STIHL MS250 with a "16-inch" bar (small mount) uses 62 drive links of .325 / .063 chain.
STIHL MS260 with a "16-inch" bar (large mount) uses 67 drive links of the same chain.
Some "16-inch" ECHO OEM bars take 57 DL of 3/8 low profile chain, so that you buy replacement loops from their dealers, instead of the 56DL loops available everywhere else ('S56').
Change a drive sprocket and you may need to add or subtract a link or two.
Philbert
Joe, I think you have thick dimes, and thin pennies......LOL!Penny is roughly. 050 thick, Dime is .058 quarter is .063
Those are approx, may not fit with new coin and/or bar.
If you are questioning used or unmarked bars for the gauge. Those work as simple guide's.
If you are just starting out get all stihl mount bars and use adaptors to fit the desired saw. May jave to modify oil hole/slot a bit but they will likely still be useable on sthil saws again.
Lol i got my merds wixed up on dat one.. i fix it...Joe, I think you have thick dimes, and thin pennies......LOL!
Yep that’s what I did and run some on my 372. Works greatIf you are just starting out get all stihl mount bars and use adaptors to fit the desired saw. May jave to modify oil hole/slot a bit but they will likely still be useable on sthil saws again.
I ran into this a few years back when I owned both a Stihl 025 and a Stihl 026. A new chain for an 18" bar on the 026 with 68 DL's would work on an 026 that carried a 16" bar. When the chain eventually stretched too far, it finally failed to tension enough on the 026. That's when I gave it back to the 025 with the so-called longer bar.That's why we useDL counts.
STIHL MS250 with a "16-inch" bar (small mount) uses 62 drive links of .325 / .063 chain.
STIHL MS260 with a "16-inch" bar (large mount) uses 67 drive links of the same chain...
Philbert
Very cool info, Ray.Windsor has used about 3 different bar numbering systems from the 1970's to the present. And the same goes for Oregon. It makes it hard to figure out the numbering on the old bars.
I just bought a spinner / breaker set!When the chain eventually stretched too far, it finally failed to tension enough on the 026. That's when I gave it back to the 025 with the so-called longer bar.