DW618 Router - Bearings failing

I have used a DW618 in my router table for the last five years. Last fall it started whining at stop/start and froze up shortly after.

Swapped in the motor from my plunge base and ordered a new one.

Yesterday the router started with the same whining.

Router mounted in an Incra lift w/ their dust collection box and hooked up to a 1200cfm dust collection.

Am I lucky or is this a known thing?