What's on your bench?

[Iron.and.bark]

I actually like working on these and other older stihls. Far prefer them over newer ones..

Side note - full ceramic 6203 c3 bearings have rocked up, so the 3184 (3120xp) may push a couple of saws off the bench...

 

[Tor R]

I actually like working on these and other older stihls. Far prefer them over newer ones..

Side note - full ceramic 6203 c3 bearings have rocked up, so the 3184 (3120xp) may push a couple of saws off the bench...

i thought those ceramic bearings should be the best you can get.
How long did they last?

 

[drf256]

Mustang Sally is coming along. Finished jug last night.

Sent from my iPad using Tapatalk

 

[Iron.and.bark]

i thought those ceramic bearings should be the best you can get.
How long did they last?

Saw actually had standard bearings that came with the new crank I bought. One was bad from husqvarna, not happy.. so yet to run ceramics.

 

[stihl_head1982]

Mustang Sally is coming along. Finished jug last night.

Sent from my iPad using Tapatalk

About time to send a 026 over your way! Looks like you're up to your ears in them now. Should I plan on waiting?

 

[Mastermind]

I'm here now dot dot dot

I'm elbow deep in a 372.

 

[VinceGU05]

What's the idea behind ceramic bearings. Spin better or last longer?

 

[Brewz]

I'm here now dot dot dot

I'm elbow deep in a 372.

Me too.

Was putting it together and found that the ring pin in the piston is worn and lets the ring spin.

PITA.... now have to order a new piston

 

[Mastermind]

Me too.

Was putting it together and found that the ring pin in the piston is worn and lets the ring spin.

PITA.... now have to order a new piston

Yeah, now that sucks. The Meteor pistons are excellent for the 372 if the OEM is too pricy there.

 

[Iron.and.bark]

What's the idea behind ceramic bearings. Spin better or last longer?

Full time milling saw. So my reason apart from speculative HP/torque gains, is reduced friction=reduced heat=longer saw life in this application. Oh and because I was pissed off at the time lol

 

[Mastermind]

What's the idea behind ceramic bearings. Spin better or last longer?

Wish I knew Vince. I've never tried them.

 

[Brewz]

Yeah, now that sucks. The Meteor pistons are excellent for the 372 if the OEM is too pricy there.

Yeah I use Meteor's in all my saws if I cant get/afford OEM, but this is a saw being built from parts of a box of bits I got containing a stripped 371 and 372.
2 of the case halves had sloppy housings so its got half/half 371/372 case, the 2 cylinders are good, no idea which one is which, they look the same, various bits missing etc etc.
I had to order a few other bits from China so I got a cheap piston too.

 

[Brewz]

Info on Ceramic bearings

http://www.bocabearings.com/dropin....ings.txt#ceramic_hybrid_bearings_applications

They look like a great idea!

 

[mdavlee]

Supposed to be no break in as well.

 

[Mastermind]

Cahoon told me they don't last in saws. Has anyone used them in a work saw?

 

[VinceGU05]

Brad has resently popped a set in a saw.

 

[drf256]

About time to send a 026 over your way! Looks like you're up to your ears in them now. Should I plan on waiting?

Summer's tough for me. Fall better.

 

[redtractor]

New on my bench at home. A clean cardboard top!

 

[MustangMike]

Re: Ceramic Bearings: I've used them in a bicycle ... did not really notice a difference. If you are going to use them, use high end ones or you will have problems. They can be smoother and more precise than steel bearings, they are harder, but if the race is not right, things will go south fast.

Also, harder is not always better, they can not withstand impact or vibrations. For this reason, I would be very cautious about putting them in a chainsaw. As my brother (a PE) points out to me, chainsaws are not well balanced (which is why you can swap/modify a piston w/o problems), they survive because the rod i overly strong. As such, I would be worried that ceramic bearings would go south over the long run from the vibrations.

 

[Chris Zautner]

Re: Ceramic Bearings: I've used them in a bicycle ... did not really notice a difference. If you are going to use them, use high end ones or you will have problems. They can be smoother and more precise than steel bearings, they are harder, but if the race is not right, things will go south fast.

Also, harder is not always better, they can not withstand impact or vibrations. For this reason, I would be very cautious about putting them in a chainsaw. As my brother (a PE) points out to me, chainsaws are not well balanced (which is why you can swap/modify a piston w/o problems), they survive because the rod i overly strong. As such, I would be worried that ceramic bearings would go south over the long run from the vibrations.

I put full ceramic bearings in the wheels of my drag bike and it pick up 1 mph. The drag bike engine builders that put full ceramic bearings in the engines and transmissions haven't had any problems but as Mike said there's many more vibrations in the chainsaws.