Re: what did you do to your motorized bicycle today?
you do have the dust cap over that bearing don't you (sprocket hole nees to be enlarged for it to fit
I have many coaster brake wheels here that overheated when using a brake designed for 11mph at 35mph - several have small cracks in the bearing race nearest the pads - one had the hub so heated that it expanded, then broke loose the spoke ring when it cooled
when a customer comes in with a coaster & no dust cap, I make a plastic one , grease the bearing, adjust the bearing with a bit of play to leave room for heating, and pack the plastic cover on to hold the grease - this needs to be changed every so often when the plastic wears
Sometimes I sets and thinks, sometimes I jes sets.