I've been looking on Bailey's to get new bars and chains for my two chainsaws since they're both going to need it soon. I can't figure something out. It seems to me that for a given bar length and pitch, the number of drive links would be fixed. But in browsing for a chain loop I can get a Husqvarna 18" loop, .325" pitch (.050" gauge) with either 72 or 78 drive links. Other brands and lengths also have different number of drive links for the same pitch and length. How is that possible? Someone educate me.
SOMEONE EDUCATE ME: chain pitch & number of drive links
- Thread starter nrp0450
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Fish
Tree Freak
Husqvarna chains in the .325 are normally 16"-66 drive links, 18"-72 drive links 20"-78 drive links
around here the gauge could be either .050 or .058
around here the gauge could be either .050 or .058
Fish
Tree Freak
stihl is different 16"-67 dl, 18"-74 dl, 20"-81 dl, unless it is on an 025/ms250, then the 16"-62 dl, and the 18"-68 dl.
Around here, the are all .063 ga.
Around here, the are all .063 ga.
Jon1212
Riff Raff Fart Knocker from other Forum's.
I'm not sure where you found this discrepancy, but 72dl is for 18" and 78dl is for 20"
Bailey's - Husqvarna 18" Chainsaw Chain Loop
Bailey's - Husqvarna 20" Chainsaw Chain Loop
This one is confusing me. It looks like an 18" loop with 78 drive links.
Husqvarna 18" Chainsaw Chain Loop (H30-78 Drive Links)
I just posted a link to an 18" loop with 78 drive links but it said it would have to be approved by a moderator. If you search for "H30-78" on the Bailey's site it comes up with two Husqvarna loops, a 20" and an 18".
Vibes
Addicted to ArboristSite
The bar mount location is where the differance is with differant saws. A 20 inch Homelite, or Olimpic bar im 3/8s sits a little closer to the drive sprocket than say a Husky bar does. The Homelite uses a 70 DL chain, the Husky a 72DL. There is still 20 inches of bar that is showing outside the clutch cover.
That makes sense. So you first need to get a bar that matches your drive sprocket and then get a chain that matches the bar. Or just stick with the "standard" numbers for your saw... now that I know what they are.
So why would Husky sell a 78DL 18" bar?
Fish
Tree Freak
One of them says fits husqvarna, the other 20" one doesn't say what it fits, like it would be a 20" on a Tanaka or Redmax.
OK, that makes a lot of sense. Would the height of the bar affect it too? A fatter bar of the same length (and gauge/pitch) would take more drive links...
Where would you go to find the standard number of drive links for a given model, like for my Poulan Pro 4218AVX? I want a .050" x 16" x 3/8" low-pro loop. But there are ones with 54, 55, 56, 57 and 59 DLs on Baileys. And just about as many options for bars. I guess I could get the saw out and start counting.
Vibes
Addicted to ArboristSite
Get your saw out and start counting. Thats the easiest way. Mark the driver where you start with a sharpy. Get a loop of Woodsmans Pro 30LP for that saw and you'll be amazed how much better that little saw will cut.
Don't count the cutters. Count the drivers.
If you need a 56 DL loop, I have a new one I'll sell you. I replaced a bar on my Yellow Max Sears and got the wrong loop. I needed 57 DL.
Don't count the cutters. Count the drivers.
If you need a 56 DL loop, I have a new one I'll sell you. I replaced a bar on my Yellow Max Sears and got the wrong loop. I needed 57 DL.
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Guido Salvage
Supreme Saw Whoreder
The bar really doesn't care what sprocket you run. What does matter is that the bar fits your mount and the oiling holes align with your saw. Of course the chain pitch will need to match the sprocket and the chain gauge needs to be the same as the bar.
fearofpavement
Trying them all
To respond to an earlier question, yes the height of the bar can affect the number of drive links. A narrow tipped carving bar, while being a certain length, will take a shorter chain than a fat bar of the same length. As also stated, if replacing a chain on an existing bar and you're not sure, just count. Chains can be made to ANY length, just need to know what you need.
Vibes
Addicted to ArboristSite
If you look at the bars on the Baileys website, the bars are listed as to what saws they fit. You can also go to the Oregon Website and look at the bar locator section, but it will only show you what Oregon has to offer.
That bar mount for those Poulans is probably the most common bar out there. Almost evvery small saw uses that bar mount. Any small Craftsman, Echo Redmax or Husky will work. Baileys has bar and chain closeouts if your looking for a good deal.
That bar mount for those Poulans is probably the most common bar out there. Almost evvery small saw uses that bar mount. Any small Craftsman, Echo Redmax or Husky will work. Baileys has bar and chain closeouts if your looking for a good deal.
SawTroll
Information Collector
The actual length of bars often isn't the same as the "called" length on any saw, and the actual saw may also change the actual length. Length should be measured from the front of the case (not the spikes/dawgs) to the front of a cutter at the very tip of the bar.
It could happen, but not in this case.
Most likely a misprint on Baileys site.
It could happen, but not in this case.
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SawTroll
Information Collector
Yep, all 3005 (small) Stihl mount bars, and all 3/8" lopro/picco bars, are quite a bit shorter than called.
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