Stihl 046 crankcase bearings

[trevor615]

I’ve split the cases on my stihl 046 and now Ive been looking for new bearings. I cant get any ordered from a saw shop because they say stihl doesn’t make them anymore. I’ve tried industrial suppliers around town and they also can’t get them because they say it’s a proprietary bearing made directly for stihl. I’m just wondering if you guys would trust aftermarket ones like farmertec? Also would anyone know if the stihl 044 bearings are the same as a 046?

 

[BuckthornBonnie]

They should still be available. 6202 c3 bearing like skf or Nachi on the flywheel side is very close to OEM (I have used them). The PTO is proprietary. eBay that one or call other dealers with a part number.

 

[BuckthornBonnie]

PTO 15x35x13, part numbers are different in Stihl’s lineup but that bearing dimension is used a lot.
Personally I would get the 046/460 bearing as it is stepped for the oil pump and is “the right part.”

 

[trevor615]

Would you guys feel comfortable using a stihl bearing on the oil pump side and a brand like skf on the other side?

 

[BuckthornBonnie]

Would you guys feel comfortable using a stihl bearing on the oil pump side and a brand like skf on the other side?

Yep

 

[drf255]

The PTO bearings should still be available.

Believe it or not, 024-046 are the same PTO bearing with the exception of the outer lip being machined down on the smaller saws. It makes no difference with the oil pump, at least that’s what I have found. The next increase in size occurs in the 064, and yes the 044 PTO bearing will work. The gasket set and seals are 046 specific, an 044 set will not work.

The fly side can be a standard 6202. I’ve used SKF and Nachi with zero issue.

Even though the PTO side bearing is 6202 sized, it has an extended lip to maintain the PTO side seal. Using a standard 6202 C3 won’t allow the seal to be retained.

I always use OEM even though people swear that Farmertech aren’t bad at all. It’s just cheap insurance. Who wants to split a crankcase again or ruin a saw to save $15?

 

[BuckthornBonnie]

The PTO bearings should still be available.

Believe it or not, 024-046 are the same PTO bearing with the exception of the outer lip being machined down on the smaller saws. It makes no difference with the oil pump, at least that’s what I have found. The next increase in size occurs in the 064, and yes the 044 PTO bearing will work. The gasket set and seals are 046 specific, an 044 set will not work.

The fly side can be a standard 6202. I’ve used SKF and Nachi with zero issue.

Even though the PTO side bearing is 6202 sized, it has an extended lip to maintain the PTO side seal. Using a standard 6202 C3 won’t allow the seal to be retained.

I always use OEM even though people swear that Farmertech aren’t bad at all. It’s just cheap insurance. Who wants to split a crankcase again or ruin a saw to save $15?

Yep, so here’s some pics with explanation. I don’t have an 044 pump around so if anyone has one, please post a pic.

The goal— see how it sits in the case?

The bearing- this one is OEM

The machined step along with seal recess

 

[BuckthornBonnie]

Now the pumps. The lineup is 1125 (034-360), 1121 (026-260), and 1128 (046/460, 044 is different).

1125-very happy


1121- very happy

1128 046/460- mostly happy


See how well the match is in the smaller saws? That ensures everything: bearing depth, seal location, crank position (with centering work), oil pump position, all the way out to the e-clip and washer.

Now, there’s usually enough wiggle room to get away with things on saws. Ex- 6202 is almost a perfect flywheel bearing... but the radius is just a whisker off.

 

[BuckthornBonnie]

The 460 pump should still be in the right position and everything should be fine. So, the smaller saw pto bearing can be used, but there’s that tiny difference as we mentioned above. Will it cause issues? Naaa... unless someone sees it as a problem.

Again, though- I’d get the oem. When you do, can you post a pic here with it mating to the pump? I don’t think I have one in the shop.

 

[trevor615]

I’m going to order a 6202 from a industrial supplier. And I’m going to try and order the oem bearing for the oil pump side. I will post a pic when I get it.

 

[BuckthornBonnie]

Sounds good.
That tiny difference mentioned above doesn’t actually affect the pump or bearing position by the way. The “thickness” should still be the same since the outer part of the bearing acts as a positive stop.