0.325 sprocket for 066

[RDB logs]

I dont suppose if anyone knows if there is a .325 sprocket for the 066? i happen to have a pile of chain and 20" bar in .325 from another saw, so would be cheeper than buying a new 3/8 bar and chain!

many thanks in advance

[miker]

i very much doubt it, i could be wrong tho

[RobRainford]

It is possible. I think it's a 10 tooth. I did think about getting one for mine to run a 13" bar

[RDB logs]

Thanks Rob i will keep going with google!

[blazer]

Are you sure you want to put a weaker chain on a very powerfull saw:confused1:

[Ironbark]

There's no approved combination for the 660, but Stihl PN 0000 642 1239 is a .325 9T drive sprocket that should fit.

 

But think about it..... 660s are .375 or .404 for a reason!

[Megatron]

Do you have a spur or rim sprocket set up at the moment?

 

I am not aware that there is a 0.325" spur sprocket that will fit. You can however get a 9 tooth rim sprocket. You can get higher teeth numbers but you would probably have to get it from a saw racing specialist.

 

The 066 uses the standard 7 spline like many of Stihl's saws. The part numbers for the rim only (9T 0.325") (no clutch drum);

Stihl 0000 642 1239

 

Oregon 13624

 

I wouldn't have thought the strength of the chain would be a problem. Chip clearance might possibly be an issue but with only 20" you will probably be OK.

[RDB logs]

Thanks megatron thats good of you to provide part numbers. I had resigned myself to a new bar,

 

As for the strength issue i will be running it on one of those portec log things to cut green sycamore thinnings so it will be at only 1/4 capacity.

 

If i were using the 36" bar to log seasoned oak it might be a different story!

 

Thanks again all as im new to this forum and computer thingy!

[C.J]

As has been previously said - get a power mate or stihl equivalent rim sprocket then you can quickly change between 325 x 9 , 3/8 x 7 , 3/8 x 8 , 404 x 7 or 404 x 8 to suit the bar you have.

[Rob D]

Again are you running a straight sprocket or a rim and sprocket type set up?

 

Rim and sprocket is easiest as you just pop on a .325 rim and away you go.