Looking for replacement shear bolts, but apparently they do not make them anymore for this model. Any suggestions?
B2650 snowblower
- Thread starter Jak Burton
- Start date
RCW
Well-known member
Lifetime Member
Equipment
BX2360, FEL, MMM, BX2750D snowblower. 1953 Minneapolis Moline ZAU
I just did a real quick check on part #'s. Look like still available through Messick's or Coleman's?
Kubota Part #70050-94176 $7.40 I suggest that you order a couple, and then see if you can find a retired guy with a lathe that will make you a few dozen at a reasonable price. If you can't find someone, then just use a cheap Chinese bolt that will break easily if you should hit a branch or other object that might do harm to your snowblower. When in doubt, this is my method to use. Changing the shear bolts doesn't take very long, and cheap bolts are just that... cheap!
I just paid $2.50 for a 1 1/4" x 1/4" grade ? Kubota shear bolt, hoping that I could figure out what the grade of bolt it is, but the head has no markings that mean anything to me. This isn't even a cut relief bolt. Kubota is taking advantage of the people that buy their products when they price the 4 or 5 times the actual cost. I don't mind a dealer making a profit, however, I will try my best not to be screwed over on a simple bolt.
I just paid $2.50 for a 1 1/4" x 1/4" grade ? Kubota shear bolt, hoping that I could figure out what the grade of bolt it is, but the head has no markings that mean anything to me. This isn't even a cut relief bolt. Kubota is taking advantage of the people that buy their products when they price the 4 or 5 times the actual cost. I don't mind a dealer making a profit, however, I will try my best not to be screwed over on a simple bolt.
It doesn't have to be Kubota. Once you find even one, get busy at Tractor Supply or Amazon or similar store. Or try McMaster-Carr, or Fastenal if you know the dimensions.
I'm guessing shear bolts are grade 2, based on a quick search.
By the way, you'd probably get better answers if the title of your thread described your problem better. There might be someone on this forum who knows all about your shear bolt problem, but never reads your thread because he doesn't know you need help with shear bolts.
Something like, "Can't find b2650-snowblower shear bolts" would work.
A thread title is really advertising for help. You want to make sure you attract the right "buyer".
EDIT TO ADD: Just found a good thread on the subject here.
I'm guessing shear bolts are grade 2, based on a quick search.
By the way, you'd probably get better answers if the title of your thread described your problem better. There might be someone on this forum who knows all about your shear bolt problem, but never reads your thread because he doesn't know you need help with shear bolts.
Something like, "Can't find b2650-snowblower shear bolts" would work.
A thread title is really advertising for help. You want to make sure you attract the right "buyer".
EDIT TO ADD: Just found a good thread on the subject here.
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RCW
Well-known member
Lifetime Member
Equipment
BX2360, FEL, MMM, BX2750D snowblower. 1953 Minneapolis Moline ZAU
The other day, @Chanceywd prompted me to check my shear pin supply for my BX2750D snowblower. He's nearby to me, and we both had a bunch of wet snow predicted.
Some part numbers give dimensions, mine are 5/16x2 1/4". Notice I have some in my stash that are 2 1/2". All came from Kubota dealership.
There's 2 grades - the grade 2 (or 5?) is for the auger, the grade 8 (?) is for the impellor, depending on the configuration of the implellor attachment -- could be grade 5....
I'm guessing if you get a couple "real" ones, you could match them from another source/part #, if needed.
Sooner think you can cross-reference the same/similar bolt from Kubota....Many (not all) smaller Kubota snowblowers are made by Rad Tech in Canada. Betting shears are same/similar.
Doubt yours look terribly different from mine.....
Some part numbers give dimensions, mine are 5/16x2 1/4". Notice I have some in my stash that are 2 1/2". All came from Kubota dealership.
There's 2 grades - the grade 2 (or 5?) is for the auger, the grade 8 (?) is for the impellor, depending on the configuration of the implellor attachment -- could be grade 5....
I'm guessing if you get a couple "real" ones, you could match them from another source/part #, if needed.
Sooner think you can cross-reference the same/similar bolt from Kubota....Many (not all) smaller Kubota snowblowers are made by Rad Tech in Canada. Betting shears are same/similar.
Doubt yours look terribly different from mine.....
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The auger shear bolts are grade 5 but they are undercut to shear cleanly in the middle where they pass through the auger gearbox shaft. The impeller shear bolt is a grade 2 bolt with no undercutting, and it will shear if the impeller is stopped for any reason. Keep in mind that the shear bolts protect the other parts of the snowblower, and by comparison, they are extremely inexpensive even if you have to pay Kubota's ridiculous prices. A new gearbox will cost north of $600, and a broken chain is about $80. The broken chain is about 45 minutes to replace, but a gearbox is multiple hours of labor to get it out and the new one in. Even with the proper shear bolts installed properly, there is no guarantee that other damage might not happen. I picked up a rock with my snowblower about 15 years ago, and the snowblower parts inventory at the dealerships wasn't that good. I had to straighten the fan and the auger. The fan was never right, and even though I did get a replacement when it became available, I didn't have the desire to take everything apart to change it. I used that snowblower for the next 12 or 13 years with its vibration, and it never failed. This past fall I purchased a used snowblower and it had the correct shear pin installed, but it was installed with a lock washer under the head of the shear bolt. I had a heck of a time getting it out because it was slightly bent. My guess is that it would have sheared had it been properly installed. Snowblowers are one piece of equipment that requires a lot of detailed attention to getting the best out of them. Proper maintenance is the key to longevity.
As for the length of the shear bolt being 1/4" longer, it doesn't matter as long as the cuts in the bolt are correct in relation to the head of the 2 bolts.