The invention concerns a bearing mount (100) of a module (9; 9M) of a cutter blade provided on a machine for use in particular in agriculture, arboriculture and viticulture, said blade being connected to a support integral with a frame and provided with at least a module comprising at least a bearing integral with said frame, said bearing supporting a shaft whereto is fixed at least a cutting member capable of being driven in rotation, the module which may further comprise at least a pulley and be connected to a motor is configured and designed such that the module (9; 9M) can be connected to the frame (7) or detached therefrom easily and rapidly, every time on the same side, by the single action of assembling/disassembling members (118). The frame (7) consists of a chassis (70) with which is associated a deflector (80), said elements (70, 80) being engaged (or disengaged) by the mere effect of mounting (or dismounting) the module (9; 9M) on (or from) the frame.
