Torque transmission device for trucks having demountable or interchangeable bodies

A torque transmission device for trucks (5) with demountable or interchangeable bodies (40) is described; the device comprises torque transmission means (10) aboard the truck and torque reception means (20) aboard the body. The reception means and the transmission means each comprise a coupling member (11, 21) to transmit a rotary motion of the truck to the body; the transmission means and reception means each comprise supporting means (15, 24) for the coupling member (21); the supporting means for the coupling member of the reception means are provided with at least one bearing (26).