Out of production gear case, small approx 8mm od thin roller bearing broke out of the boss at the bottom. Small and hard to access, I'd like to fill the whole bottom with epoxy to support that side of the bearing. Low speed low temp application with grease, not oil. I need about 3 cubic inches of epoxy; wondering what type would be best and where to buy that small amount retail or should I just use some jb weld hardware store stuff. Its an aluminum case, I'd like to use aluminum or steel filled putty, roughen the area and press it in by hand after the bearing is in place, completely filling the area all the way to the case wall, 1/2" deep I could embed some steel struts radially between the bearing and case wall and/or make a crescent shaped piece to fit in there around the bearing too- should I?, but I'm not going to attempt to weld down in there, not enough room (for me anyway).