No bar sprocket on ripping bar?

[porangi]

Festive greetings all,

 

Just unwrapping my new Stihl ripping bar for an MS661/Logosol set up and it has no sprocket on the end.

 

 

Whilst I accept this is probably correct - the bar was bought to match the chains provided by Logosol and had Logosol in the notes column of the Stihl catalog.

 

My question is why/how?

 

Thanks guys

 

 

 

 

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[peatff]

Thread about it here I don't do any milling but read about it a bit and you can clamp further out to the end of a solid bar so that may be an advantage.

Edited December 26, 2016 by peatff

[porangi]

Thanks, so we're saying not perfect but should be ok for starters . Need to watch chain tension and for burning oil.

 

 

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[Daniël Bos]

Solid nose is more rugged, but it takes more power to pull the chain around than a sprocket.

In a logosol the advantage of clamping closer to the end (which is myth anyway, I clamp right on the sprocket...) isn't there anyway?

 

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[Rough Hewn]

I mill. Ditch the duromatic bar. Get a rollomatic es.

Might get away with low profile chain on a 20" bar?

Duromatics heat up quite quickly when milling, burns the oil off.

Loses power going over the bar tip.

[Rough Hewn]

Then read. Chainsaw lumber making by will maloff.

If you're going to be ripping regularly get a decent grinder.

It's all about the chain regularity, depth gauges are especially

important.

Good luck

[porangi]

Thanks Hewn. Will take a look.

 

 

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[agg221]

Having no nose sprocket, the Duromatic bar allows you to run whatever pitch chain you wish. 0.050" is a narrow gauge bar (compared with the standard 0.063" for Stihls of this size) so it is designed to enable you to run 3/8" lo-pro chain. This should increase milling speed.

 

Ideally you would fit a 3/8" lo-pro pitch, 0.050" gauge, sprocket-nosed bar but these have not always been easy to obtain, certainly not directly from Stihl, as although in theory the nose sprockets are interchangeable they are not always available in the right diameter for a given bar nose. A hard nosed bar is therefore a universal fit.

 

You can find suitable sized GB bars on the Alaskan Mill website:

 

LO PRO MILLING BARS FOR STIHL Archives - Alaskan Mill ? Mobile Chainsaw Mills

 

Alec

[porangi]

Hi Alec, at the moment I'm looking at a 20" bar 1.3mm but have been unable to find a sprocketed bar.

 

 

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[agg221]

Hi Alec, at the moment I'm looking at a 20" bar 1.3mm but have been unable to find a sprocketed bar.

 

 

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This will do it:

 

SNHL20-50WR 20" GB Lo Pro Milling Bar For Stihl 026, MS260, MS261, MS270, MS271, MS280, MS290, MS291, MS360, MS361, MS362 - Alaskan Mill ? Mobile Chainsaw Mills

 

It isn't advertised for the MS661 as it is shorter than standard but Stihl uses the same bar mounts from the MS261 all the way up to the MS661 so the bars are interchangeable (as long as you fit the corresponding drive sprocket to the saw).

 

Alec