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Polea variable simple, para correa trapezoidal caracterizada esencialmente por una pieza rosca unida al cuerpo general para que al ser accionada ésta mueva, al cuerpo móvil sobre el fijo y se produzca por ello, una variación en el diámetro primitivo de la polea, fijándose para su trabajo con prisionero a ambos cuerpos móvil y fijo constitutivos de la polea.
ES1971166541U1971-03-011971-03-01Polea variable simple, para correa trapezoidal.
ExpiredES166541Y
(es)