3500lb axles bad design
Probably most medium size trailers have the 3500lb axles and 10" brakes. The design of the spindles has little to no shoulder to locate the inner bearing. When I looked up the blueprints, I found th...
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JBarca wrote:
I found this, this tells us having a resultant clearance of 0.0019" between the bearing bore and the spindle OD is out of tolerance by 0.0007" too big.
Your bearing would fall in the 0" to 3" bore bearing chart on page 2
https://www.timken.com/pdf/10829_MDV5-Correct-Fits-For-Your-Wheel-Bearing.pdf
As I thought, the ideal middle of the clearance resultant fit spec is 0.0007" clear between spindle and bearing. They declare a min of 0.0002" clear to 0.0012" max between the shaft and the bearing. See page 2, under bearing cone bore diameter.
It looks like you to much running clearance between the shaft and the bearing bore.
Hope this helps.
John
Thanks for that. I really wanted to find the manufacturing tolerances for the bearing and spindle. We both know that a perfect fit would be best. I did find that the bearing is to be 1.3775" to 1.3780" The spindle size is to be 1.3760" and that is what I have so with unknown tolerances, the clearance could be greater.
So anyway, at .0019" my parts are within the specification of .0015" to .0020", so again that clearance could be even greater if we had the spindle tolerance.
I have another bare axle of a different brand that I will measure tomorrow.
