Wheel bearings in the idler wheel. Check them!

Support & Solutions
1

I see there is another post in here about this that is at the extream end of this issue with flogged out wheel hubs.

I caught my bearings before it got bad.

Although the bearings are sealed that isnt a guarantee that they will stay that way. Especially if you mow through wet muddy lawns.

During PM on this particular core of mine I had found that the bearings had ceased due to the seal failing and them loosing all the grease, to the point they had rusted solid. I was able to pick the side seal out to free them up and repack the bearings with silicone track grease to get up and running again while a solution was sorted out.

I started 1 ticket for both sides and as of writing this have gotten repair parts for 1 side. So my suggestion is start a seperate ticket for both sides.

As for the parts that yarbo sent, in my case, has been a little excessive but will fix the issue for sure as they sent me a replacement wheel, axle, bearings, and bogie frame when all I really needed were just the wheel bearings.

I figured that Yarbo where going to take longer than I wanted to get repair parts to me so I went ahead an ordered a set of replacement bearings from Schmamazon for $17 for 4 of them. For those wondering how to figure out which bearings to order all you need is the code off of the bearing itself. Its usually a 4 digit code and sometimes it has a suffix to denote special features

So the bearing size you are looking for are 6002 and you want sealed bearings (not shielded as shielded bearings don’t keep the gunk out) the suffix I ordered were the 2RS.

This part is to Yarbo.

There seems to be a design flaw with the idler wheel bearing set up.

There isnt a spacer between to 2 bearings inside the wheel to keep the bearings spaced in the wheel itself.

When tightening the axle bolt that lack of a spacer support allows the center race in the bearings to be pulled together causing unwanted side loading within the bearing itself. I think this was a contributing factor to the failure of my core along with the wet muddy conditions of my lawn.

Something to think about but I will be adding a spacer in the near future regardless of how the new bearings preform.

2

How long did it take to get the spare parts? After 3 days I still have no response at all.

3

You can get bearings that are made from stainless steel. That would solve the rusting problem.

4

Just got the reply from customer support and I will receive 2 full replacement sets. Not only the wheel bearings. Seems like standard procedure but I’ll take it. Great customer support if I may say so.

I know we are bit*** from time to time about all of this but in the end I have to say I love this product.

And it works (sometimes after some tweaking but still…)!

5

Unfortunately I started this process 26 days ago. Mostly because I wasn’t too concerned about the issue. I knew I would have a fix before yarbo would even get serious about looking at the problem. So it has taken a little longer than it has in the past.

I figured support would be busy being the start of the mowing season. So I ordered what I needed to get up and running again.

6

The only sure fire way to go is with a full ceramic bearing but a standard sealed bearing should do the job ok and they are cheep enough to keep spares on the shelf at home.

7

Hi there, thanks a lot for taking the time to share your experience and detailed observations with us. We also really appreciate the suggestions and technical insights you provided regarding the bearing and idler wheel design.

Feedback like this is very valuable for us, especially when it comes from real-world usage and hands-on maintenance experience. I’ll make sure to share your comments and suggestions with our product team for further review and evaluation.

And thank you as well for sharing the temporary solutions and bearing information with the community — we’re sure it will be helpful for other users experiencing similar issues.

8

I noticed today that the front driving wheels seem to wiggle also. Is this normal or is it also a bearing issue?

Thanks

9

The front wheels are sloppy but usually don’t cause an issue, until they start to rub on other parts.

10

A little wiggle is “normal”