bearing_radius = (bearing == "608zz") ? _608zz_radius : 1/0;
bearing_inner_radius = (bearing == "608zz") ? _608zz_inner_radius : 1/0;
bearing_cover_radius = (bearing == "608zz")
bearing_radius = (bearing == "608zz") ? _608zz_radius : 1/0;
bearing_inner_radius = (bearing == "608zz") ? _608zz_inner_radius : 1/0;
bearing_cover_radius = (bearing == "608zz")