Hello, Bill,
I am certainly no bearing expert, so I defer to your expertise and experience.
My goal was only to relate what I had done and what worked well for me.? As tapered roller bearings do not have shields, seals or internal lubrication, (at least, the ones I installed didn't), any overheating issues would manifest in a metallurgical issue.? Fortunately, this has not happened in the six or so years since their installation.
Thanks,
Charlie