A little disappointed with Kubota

[rScotty]

I hate to break it to you, but John Deere uses the same design on their 310 series backhoes. The only difference being possibly the diameter of the hole in relation to the diameter of the stud going through it.

Aaron Z

No they don't. That's how rumors get started. I have a JD310 and it uses hardened bolts clamping hardened flat washers to hold the wheel to the hub. That's industry standard. You should check your sources.
rScotty

 

[Ford850]

Are the rims cracked? I thought the pictured showed cracked paint or powder coat.

 

[JWR]

See my post #64 and Spyderlk's post sometime prior to that. Both of us note what looks like a crack in the disk in the picture the OP posted on post #2. That same picture shows the hub hole being elongated and more space on the right of the picture than the left... and that only happens with a cracked disk. Yes, I am convinced that both disks are cracked. What I'd like to see is the OP to pull the disks and have them inspected at a machine shop that can measure the hub hole as well as all other dimensions accurately AND I expect will also find the cracks. Assuming that is the case, the only real question remaining is what caused the cracks. [Remember in an early post the OP said the picture he showed was of the BEST of the two disks so the other side is worse yet.]

With only 600 hours on a machine he bought new this is still an eyebrow raiser. Until more concrete info is posted I'm not speculating about the cause.

 

[Ford850]

See my post #64 and Spyderlk's post sometime prior to that. Both of us note what looks like a crack in the disk in the picture the OP posted on post #2. That same picture shows the hub hole being elongated and more space on the right of the picture than the left... and that only happens with a cracked disk. Yes, I am convinced that both disks are cracked. What I'd like to see is the OP to pull the disks and have them inspected at a machine shop that can measure the hub hole as well as all other dimensions accurately AND I expect will also find the cracks. Assuming that is the case, the only real question remaining is what caused the cracks. [Remember in an early post the OP said the picture he showed was of the BEST of the two disks so the other side is worse yet.]

With only 600 hours on a machine he bought new this is still an eyebrow raiser. Until more concrete info is posted I'm not speculating about the cause.

In my opinion, it looks like flaked paint and shadows. I don't think we can tell anything about the hub hole from that partial view due to the angle of the lighting and shadow. Only Crazyal will be able to clear this up for us.

 

[TheMadOne]

In my opinion, it looks like flaked paint and shadows. I don't think we can tell anything about the hub hole from that partial view due to the angle of the lighting and shadow. Only Crazyal will be able to clear this up for us.

Agree. I've been following this thread, and there's been no real answer, simply because there's not enough info to get an answer. Only thing you can tell from that pic is that the hole for the stud does seem oversized, and that the hub isn't sitting in the center of the wheel plate. Only way we're going to figure this out is if the wheel is pulled, I think.

 

[JWR]

Ford 850: You might be right. We won't know for sure until/unless the OP gives better pictures (of the disks, off the tractor) and/or has it investigated.
You have to click on the image below in order to see where I inserted notation and arrows. Looks to me like the crack enables the wider gap at the hub to the right.

Tried to remove one of these two images and the TBN web software does not seem to allow that...

 

[Ford850]

Ford 850: You might be right. We won't know for sure until/unless the OP gives better pictures (of the disks, off the tractor) and/or has it investigated.
You have to click on the image below in order to see where I inserted notation and arrows. Looks to me like the crack enables the wider gap at the hub to the right.

Tried to remove one of these two images and the TBN web software does not seem to allow that...

Yeah those were the areas I was looking at too. I still think the areas some think are cracks are really pieces of flaked paint with shadows along the left edges of each. The upper left arrow points to a piece of paint, flipped over, looking at the underside rusty surface of the paint flake with a shadow along the left side. The gap in the hub is really a shadow too, since the light source is from the upper right side. It will naturally cast a heavier shadow on the edge of that upper right rim/hub intersection. And that area, whether shadow or gap, is very small anyway. Look at the size of the bolt compared to that slight gap/shadow - it's about the thickness of a coat of paint.

 

[JWR]

This is intriguing and I hope the OP pulls those disks and gets back to all of us with fresh images and results of a machine shop eval.

 

[The Fred]

My wheels are still tight Al lol.

Come on down I just tapped a full keg of PBR at the Fred tiki bar, we can ***** about our tractors full time over a few drafts.

Richard you come too please, that is if you like beer:licking:

Regards, Fred

 

[SPYDERLK]

Yes. If the mating hub/dish surfaces are good and either cracks or a wear depression has not formed in the dish, new fasteners and flatwashers at ~250 ftlb will be more than adequate.