# Latex + Tikz, 269 bytes

    \documentclass[tikz]{standalone}\begin{document}\tikz{\def\f{\foreach\x in{90,210,330}}\def\u{\draw[line width=}\def~{circle(}\f\fill(\x:21)~30);\f{\u2cm,white](0,)--(\x:11);\fill[white](\x:30)~21);}\fill[white]~6);\u7cm]~25.5);\f\u2cm,white](\x:30)~20);}\end{document}

With line breaks and without `\def`:

    \documentclass[tikz]{standalone}
    \begin{document}
    \tikz{
    \foreach\x in{90,210,330}\fill(\x:21)circle(30);
    \foreach\x in{90,210,330}[]{\draw[white,line width=2cm](0,0)--(\x:11);\fill[white](\x:30)circle(21);}
    \fill[white](0,0)circle(6);
    \draw[line width=7cm](0,0)circle(25.5);
    \foreach\x in{90,210,330}\draw[white,line width=2cm](\x:30)circle(20);
    }
    \end{document}