ER 250 Bearing Replacement

This is a simple tutorial on bearing replacement for the Eachine Racer 250. The bearings for these particular motors are S693ZZ bearings from GotHeliRC.com
http://www.gothelirc.com/products/1254-abec5-3x8x4mm-bearings-for-dji-2212-motor-set-of-2pcs/