Guide Bar Info Thread.

[Mkinslow]

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.

 

[CoreyB]

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.

Not really because the width of the bar influences the DL count as well.

 

[Mkinslow]

Not really because the width of the bar influences the DL count as well.

Ahh ok

 

[Wood Doctor]

Not really because the width of the bar influences the DL count as well.

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.

 

[Mkinslow]

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.

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 shop

 

[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

 

[Mkinslow]

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

This is why I wanted to start this thread. ALL THIS INFORMATION YALL HAVE

 

[Jon1212]

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

Very good summary, Philbert.

The examples are too numerous to list.

 

[Red97]

Dime is roughly. 050 thick, penny 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.

 

[Jon1212]

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.

Joe, I think you have thick dimes, and thin pennies......LOL!

 

[Red97]

Joe, I think you have thick dimes, and thin pennies......LOL!

Lol i got my merds wixed up on dat one.. i fix it...

Sent from my SM-G950U using Tapatalk

 

[Mkinslow]

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.

Yep that’s what I did and run some on my 372. Works great

 

[Jon1212]

Here is some Windsor Guide Bar information.

@ray benson @Wagnerwerks can you fellas add what you have? At your convenience.

 

[Philbert]

This is handy (PDF attached):



Philbert

 

[Philbert]

Some more from Oregon:


(similar information in different format attached below - applies to older bars and model names)




Philbert

 

[Mkinslow]

That’s great information guys. Thanks

 

[Wood Doctor]

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

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.

 

[ray benson]

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.

 

[Jon1212]

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.

Very cool info, Ray.

I glanced at the "old" Oregon list, briefly. It's interesting that it lists the obsolete D005 being replaced by the D009, when the D005 was 0.5mm wider in the stud slot. Yet Windsor EM's can still be found quite easily. It seems that the D005 should have been replaced by the D196 or D007.

 

[Philbert]

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.

I just bought a spinner / breaker set!

Philbert