Well… Its a ball bearing. Not much to say except that I like them (but I don’t like replacing them) and now with Cycles I thought that I try to make one as photo real I could. I know there are some mistakes in both modeling and texturing and I also know some of you will think I have gone overboard with the chromatic aberration and you are probably right but I like the effect in this case.
Thanks for all your comments, Im glad you like it. The brushed metal texture is nothing special actually. Its just an image texture on a diffuse and glossy mix shader. The lighting is also quite simple, its a hdr image on a sphere and one plane for the main light.