Mott Flail mower bearing

[Bunnyblaster]

So like I had mentioned earlier in another post, I got this 72" Mott flail mower from junk yard of sorts. Turns out one of the bearings on the cuttershaft had no balls to it. Instead of buying the bearing listed on Flailmaster for it, I went to a local bearing shop. They looked at it puzzled for some time. They didn't have one exactly like it, so I got a wide 206 bearing. After about 30 min of use, that $45 bearing is junk. Long story, but its no more.

Now I'm wondering if I should just order the one from Flailmaster for $97. Anyone know another place to get a bearing for one of these? I have nothing against Flailmaster, I'm just looking for options....maybe cheaper options.

The bearing on the other side looks fine, and feels tight.

thanks for the help.

 

[BillBeyer]

I get most of my bearings at Motion Industries. What is the bering number that you need?

 

[joes_427_vette]

Sounds like your really saving money. I take the used to Motion and they usually can match it up with current production models. If the inside and outside diameters are good..... you have other problems like a twisted / bent rotar. Check farther.

 

[fluggies4]

The OEM bearing is a Sealmaster SK-945

 

[BillBeyer]

Sealmaster SK-945
Motion says this is a special cast housing bearing made for the mower. Waiting on a price.

 

[BillBeyer]

Sealmaster SK-945 is 55.72. Might be freight added to that. 2 week delivery.

 

[Bunnyblaster]

Yeah, about the saving money thing....not so much.

The problem with the 206 bearing was that the inner race of the original bearing was wider than the outer race. Thats what threw the bearing shop for a loop.

Not thinking about it much, I just pressed in the 206 bearing and tightened the bold down on it.....well, there was about 1/8 in space on the inside where the wider race would have contacted the shaft and allowed the bolt to tighten down on. My guess is I pushed the inner race of the new bearing 1/8 in or so in, and popped the seal allowing all kinds of grass and junk to get in there.

My mistake. Just need to get it going before I go to cut some more.

thanks again.

 

[Bunnyblaster]

Turns out theres a Motion Industries location about an hour from here. I emailed the contact to see if they had something in stock. I'd like to compare the two. All I have from the old bearing is an inner and outer race though. Where did you guys find the info on the OEM parts for the mower? I've been searching for it, but come up empty handed.

thanks for the quick help.

 

[BillBeyer]

I used the number that the other person posted. Do not knbow where he got it or if it is correct.

 

[fluggies4]

The Mott/Alamo part number is 102792, which is a Sealmaster SK-945

 

[montejw]

seems like if you don't know what the bearing is exactly, getting the bearing from flailmaster would be the way to go. I bought both cutter shaft bearings and rear roller bearings from them and have never had a problem in a couple years. the bearings are "self aligning" on my Mott 6' finish flail mower if that helps. yeah, they were a bit pricey, but they work.

 

[Eagleview]

So like I had mentioned earlier in another post, I got this 72" Mott flail mower from junk yard of sorts. Turns out one of the bearings on the cuttershaft had no balls to it. Instead of buying the bearing listed on Flailmaster for it, I went to a local bearing shop. They looked at it puzzled for some time. They didn't have one exactly like it, so I got a wide 206 bearing. After about 30 min of use, that $45 bearing is junk. Long story, but its no more.

Now I'm wondering if I should just order the one from Flailmaster for $97. Anyone know another place to get a bearing for one of these? I have nothing against Flailmaster, I'm just looking for options....maybe cheaper options.

The bearing on the other side looks fine, and feels tight.

thanks for the help.

All flail mowers use Spherical bearings on the cutter drum , and usually on the rear roller . Spherical bearings have two rows of balls or rollers held by a central cage . The races are ground in a way that allows the center of the bearing to run out of align to cater for any misalignment the rotor may have . A standard bearing will fail within minutes . Spherical bearings do not have grease seals as they are supposed to run in oil or grease and are sealed by separate inner and outer seals in the drum , they are not pre lubricated .

 

[Bunnyblaster]

I ended up ordering the bearing from Montage today. $61. The guy on the phone was really helpful. Hopefully this works out and I can put on some new blades this fall. Seems like it will be a winter time project I can stretch over a few weeks...

Thanks for all the help!

 

[Storm56]

Interesting reading this thread. I had bought a used flail mower that needed bearings and I bought some from an equipment dealer. They lasted about 2 days, now I know why! I am going to have to dig the old girl out and see about these new special bearings.

 

[leonz]

Like all bearings they are metric and they will be easy to find.

 

[spo307]

I buy all my parts from montage

 

[bimlay69]

does anybody know the seal master number for the roller or a cheap place to buy the bearings

 

[LD1]

does anybody know the seal master number for the roller or a cheap place to buy the bearings

This thread is 2 years old. You would have better luck starting a new thread than trying to post at the end of this one.

And you are going to need to be more detailed if you start another post.Bearing for the roller??? What roller? For a flail mower? what brand? model? etc. Possibly some pics?

The more details you can provide, the better/faster responses you will get.

 

[spo307]

I got my bearings from montage cheaper than flail master

 

[Storm56]

I have an old Mott Flail that needs bearings, glad I came across this thread. Good stuff!