Thanks for your responses.
EdDanzer - We currently have a 0.03/0.05" shoulder radius called out, which is about as large as we can go with the bearings that come against that shoulder. The outside of the shoulder is chamfered to facilitate seal installation. If the chamfer is left as is, the...
We have a spindle assembly that developed a fatigue failure and broke where the spindle shaft steps down from 1.25" dia to 1" diameter for the bearings.
One of the options we are considering is to replace the 1018 shaft with a shaft made from 1045. The spindle would be welded to a 1/2" thick...