Pivot support wheel (2) for a reversible plow (1) that is connected to the plow frame (4) of the reversible plow (1) pivotally around a pivot axis (3) that runs at least approximately parallel to the ground and at least approximately perpendicular to the direction of travel, being able to regulate the reversible plow (1) with its plow tools (5) from a position that turns to the right to one that turns to the left, being mounted a support wheel (6) rotatably on a wheel stem (7) and forming the pivoting support wheel (2) and limiting the support wheel (6) by contact with the ground the working depth of the tools of plow (5) by limiting the pivoting angle of the pivoting support wheel (2) with respect to the plow frame (4), characterized in that the pivoting support wheel (2) can be pivoted, by lowering the reversible plow ( 1), from a pivoted position the lowest e n raised position of the reversible plow (1) to a working position, the working position being predefined by at least one latch (8) arranged in a mobile manner that falls into a notch of a toothed segment (9) of one or more parts and thereby limiting by dragging the pivoting angle of the pivoting support wheel (2), the toothed segment (9) being divided towards the latch (8) by at least one covering (10, 10 ') in a effective zone and an ineffective zoneRueda de soporte pivotante (2) para un arado reversible (1) que está unida con el bastidor de arado (4) del arado reversible (1) de manera pivotante en torno a un eje de pivotado (3) que discurre de manera al menos aproximadamente paralela al suelo y al menos aproximadamente perpendicular a la dirección de marcha, pudiéndose regular el arado reversible (1) con sus herramientas de arado (5) desde una posición que gira hacia la derecha a una que gira hacia la izquierda, estando montada una rueda de soporte (6) de manera giratoria en un tallo de rueda (7) y formando con este la rueda de soporte pivotante (2) y limitando la rueda de soporte (6) por contacto con el
