Quote:
by Matt G.
I suspect that counterweight contributed to the failure. There is a pretty massive stress concentration where the flange attaches to the axle, and having weight on the frame/rearend increases the stress on the axle flange.
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Quote:
by ol'George
Matt,
Don't you think the welded flange instead of a forged flange also contributed to the brittle/weakness of the axle assembly?
I'm thinking that a forging would of not broke, but either design would be overstressed in my book @ that small of diameter with the loads imposed.
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Matt is correct on what cause the failure. 150 to 200 pounds of weight would have been plenty. The loader itself is lucky to lift 350 to 500 pounds. When you add the operator's weight, rear end weight you will have more than enough counterweight. Going overkill like some of the recent post/topics will cause problems like broken axles or diffs. I rather have my Cubs be able to spin tires some than over do the weight.
George-
A forge flange may take more abuse.....they do cost more and not needed if the driver/owner use some common sense.