roda gigi searah bahasa Inggris

• ratchet (device)

• roda:    hue; wheel; wheels; cartwheel; castor; castor,
• roda gigi:    cogwheel; gearwheel; gear; gear wheel; sprocket
• gigi:    teeth; tooth; gigi (novella); cog; gear; edge;
• searah:    unidirectional; simplex; converge