How are plain friction bearings made?
Friction bearings are not always "mabe"(manufactured), as in the case of the Piston-Pin, which is both the connecting part, and the bearing itself, there is no special bushing.
The question here is what is the color of the bearings
, Crankshaft Main Journals, at 2011 CBR250R?
The friction bearings are usually(not always
) made of alloys that have copper in them, so their color is the same as the color of the copper, for example: Bronze (88% Copper + 12% Tin). I do not know what the exact compound in Honda's friction bearings, I know that their color is silver.