herringbone gear | continuous double helical tooth gear | continuous double-helical tooth gear | continuous double helical gear | continuous double-helical gear | continuous tooth double-helical gear | continuous herringbone gear | double helical gear | double-helical gear | twin-helical gear
roue à denture en chevron continu | roue à denture à chevrons simples | roue cylindrique à chevrons | roue à double hélice | roue en chevron | roue cylindrique à denture hélicoïdale double | roue à chevrons | roue hélicoïdale double