The invention relates to a vibration absorption device for a motor vehicle transmission, said device having a rotational axis X and comprising a support (10) and an oscillator (20), said oscillator comprising a counter-weight (25) and two rolling elements (30a, 30b); the support, and respectively the counter-weight, defining running tracks for said rolling elements, called ''support running track'' and respectively ''counter-weight running track'', such that the rolling of said rolling elements on said running tracks moves the counter-weight in relation to the support; the mass of the counter-weight arranged outside the virtual cylinder defined by the support during the rotation thereof about the axis X, the so-called ''peripheral mass'', representing more than 30% of the total mass of the counter-weight.