Are 1/4 pitch 0.050 chains like 13RMS and H00 compatible with 71PM3 type spur sprockets?

[treehugs]

I bought a 0.050 1/4 bar to replace the the 0.043 1/4 rollomatic mini on an affordable stihl battery saw as I can not deal with sharpening the miniature 71 picco micro 3 chain. I see the drivers on Carlton E1MC-BL chain are ever so slightly different from those on the miniature Stihl chain. Attached is the sprocket used on these battery saws, a 7 tooth sprocket the size of a thumbnail,
1252 642 1201.

 

[heimannm]

Although the pitch is the same, the chassis height is different and will require a different sprocket to fit each chain correctly, much like the difference between 3/8" pitch chain and 3/8" Lo Pro or Picco.

1/4" .050 top, Picco bottom



I don't have 1/4" sprockets to compare but here is the difference between 3/8 and 3/8 LP or Picco





Mark

 

[Sloughfoot]

Mark, do you know if the .050 3/8 picco super chassis is the same as the chassis on a .050 3/8 picco micro?

 

[Duane(Pa)]

I bought a 0.050 1/4 bar to replace the the 0.043 1/4 rollomatic mini on an affordable stihl battery saw as I can not deal with sharpening the miniature 71 picco micro 3 chain. I see the drivers on Carlton E1MC-BL chain are ever so slightly different from those on the miniature Stihl chain. Attached is the sprocket used on these battery saws, a 7 tooth sprocket the size of a thumbnail,
1252 642 1201.

IDK if the sprocket fits other things besides a battery saw. My HT56 pole saw came with 1/4 .050 I don't recall how it looks on the inside drive.