Without Thinking Buy New and Don't Even Consider Repairing

MEXICOWANDERER wrote:
I'm talking a real barn-burner of a squeal...

Perhaps ... sewing machine oil administered to each bearing via a small tube (a tiny long tube pulls out of the long nozzle you see portruding from the plastic bottle in the photo)?: https://www.amazon.com/gp/product/B01G63K98C/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

P.S. You didn't answer my question on inherent noise from brushless motors?