Bearing quality for our motors

[Snipin_Willy]

Many of us are running Neu, Tekno Neu, CC Neu, and/or Tekin motors. I want to stock a few few replacement bearings on hand so I can replace the worn out ones when needed. I've been trying to figure out which bearings and quality to buy on Boca's web site. My Tekin uses a 5x16x5 and a 5x11x5 bearing. The majority of the bearings are ABEC#1, but I read somewhere Neu puts ABEC#3 bearings in their motors? Would a ABEC#5 last any longer than the ABEC#3 given the enviroment it's going to be used in? Is the cost of a ceramic hybrid bearing worth the extra cost?

Anyone replace their own bearings have any answers they could share?