Crank Shaft Bearings

[sherlock349]

Does everyone replacing crank bearings always take the covers of after market bearings. Is this best accepted practice.
Thanks

 

[huskihl]

Does everyone replacing crank bearings always take the covers of after market bearings. Is this best accepted practice.
Thanks

I always pick the metal shields or rubber seals out

 

[Duce]

One question, how would oil get to that bearing with covers on?

 

[Powerstroke Cowboy]

Does everyone replacing crank bearings always take the covers of after market bearings. Is this best accepted practice.
Thanks

Absolutely!

 

[huskihl]

One question, how would oil get to that bearing with covers on?

I don’t really know, but the shields keep as much debris out as they let oil in. I’ve seen 30 year old 044 and 066 with perfectly good shielded bearings and the rest of the saw was clapped out

 

[jacob j.]

One question, how would oil get to that bearing with covers on?

If you look at some of the metal-shielded bearings, they have small slots in the metal shields. These are the style I've seen in the older 044/064/066 saws like Kevin mentions when Stihl was using metal shielded bearings. Like Kevin said, there's examples where the metal-shielded bearings have been in perfect shape after years of service.

 

[Duce]

I don’t really know, but the shields keep as much debris out as they let oil in. I’ve seen 30 year old 044 and 066 with perfectly good shielded bearings and the rest of the saw was clapped out

Never seen them in Husqvarna saws, but I am sure you guys have. I will keep my 2 cents to myself.

 

[huskihl]

Never seen them in Husqvarna saws, but I am sure you guys have. I will keep my 2 cents to myself.

I don’t think husky ever used them

 

[Creaky Limb T C]

I think it would make sense for Husqvarna to leave the shield in the outer side of the bearing on the 5 series saws, at least it would stop their crappy bearing retainers ripping out the crank seals when they fail....