Stihl 044 bearing.

[Gary Courtney]

That's what 'was' the case and what's shown in the IPL, but Stihl are telling me the only bearing now available to suit the 1128 series saws is the 4278 bearing.

I just purchased a 4275.

From what I've been supplied with from the dealer 4278 has the groove......Dealer says the other two part numbers 4270 & 4275 are NLA and are superseded to 4278.

I just put this in the saw yesterday they are still available

 

[10/80]

The pic that I posted for @Scallywag shows an 044 oil pump with a grooved 4278 bearing which will not fit in the recess of the pump.

Here's the 4278 bearing sitting groove down and loose in my 044 pump, and the packaging it was sent in.

 

[Gary Courtney]

Cant find an 044 pump right now. Can try tonight. If anyone else has a pump, maybe they could check.

refer to my pic above. that is an oil pump off an 044

 

[Gary Courtney]

All three bearings are 15x35x15.... If 4278 is mounted with the groove facing out it's loose in the pump.

That is correct. I do not mean to confuse anyone.

 

[10/80]

I just put this in the saw yesterday they are still available

I'm now thinking it's either the dealer or the original 044 pto bearing is NLA here in Oz.

 

[Gary Courtney]

Here's the 4278 bearing sitting groove down and loose in my 044 pump, and the packaging it was sent in.


View attachment 334929 View attachment 334930

Yes sir. That is the same situation I had with the 4278 bearing.

 

[Gary Courtney]

 

[10/80]

@Gary Courtney Those bearing appear to be different widths?....My original (4270) and the grooved / stepped (4278) are both 13mm wide.

 

[Gary Courtney]

@Gary Courtney Those bearing appear to be different widths?

yes sir. when I installed the 4278 it stuck out to far in the case halve

 

[Gary Courtney]

this is the correct 4275 bearing installed @Scallywag

 

[10/80]

Here's the only Au online listing I can find for 'genuine Stihl' 044 bearings, note the pto side bearing is grooved.

https://www.ebay.com.au/itm/2740594...60-0&mkcid=2&itemid=274059432828&targetid=127

 

[Gary Courtney]

Here's the only Au online listing I can find for 'genuine Stihl' 044 bearings, note the pto side bearing is grooved.

https://www.ebay.com.au/itm/2740594...60-0&mkcid=2&itemid=274059432828&targetid=127

I am going to call the regional Stihl Southwest engineer shortly and ask him if there are 2 propritery bearings that CAN be used.

 

[huskihl]

You guys need to remember that every bearing like this is a “grooved” bearing. That relief cut around the outside can be whatever we want to call it, but even without it, it’s still a grooved bearing.

 

[10/80]

You guys need to remember that every bearing like this is a “grooved” bearing. That relief cut around the outside can be whatever we want to call it, but even without it, it’s still a grooved bearing.

Stepped / grooved / shoulder?....I don't really know what the proper name is?

 

[Stump Shot]

I too recently ordered and received 9523 003 4275 bearing from Stihl for an 044 build as listed by Stihl mediacat and confirmed by said catalog that bearing 9523 003 4278 is for a 460.

 

[10/80]

Call the dealer and bearing 4275 is available here and is ordered....Thanks to the members here for the correct info that the dealer couldn't be bothered to chase up!

 

[Stump Shot]

 

[drf256]

@Gary Courtney Those bearing appear to be different widths?....My original (4270) and the grooved (4278) are both 13mm wide.

Exactly

 

[10/80]

Exactly

So 4278 & 4275 should be the same width?

 

[drf256]

So 4278 & 4275 should be the same width?

Phil, I have NFI when it comes to the PN’s, but I do know they are the same width. One is just grooved on the OD and the other isn’t. If you use the grooved one, the pump will still set the correct depth in the case half. The pump will be sloppy on it, but the two screws and the worm gear will keep the pump in place.

I’ll look and see if I have both here and snap a pic.