毂 轂 gu1
wheel

毂 轂 gu3
hub of wheel

strokes 17
radical
车
車
strokes after radical 10
华毂 華轂 hua2 gu3
decorated carriage

轮毂 輪轂 lun2 gu3
wheel hub

轮毂罩 輪轂罩 lun2 gu3 zhao4
hubcap

螺桨毂 螺槳轂 luo2 jiang3 gu1
propeller hub