Module of modular conveyor belt with roller transport surface for continuous motorized conveyors comprising a base body extending in length along a first direction, said direction being transverse with respect to the transport direction, between two opposite lateral faces (12, 13) and having: - an upper surface and a lower surface, - a first longitudinal edge and a second longitudinal edge, opposed to each other with respect to a second direction orthogonal with respect to said first direction, - a plurality of first hinge elements and a plurality of second hinge elements projecting respectively from said first edge and from said second edge along said second direction, wherein each one of said first hinge elements is crossed by a respective first hole with axis parallel to said first direction and each one of said second hinge elements is crossed by a respective second hole with axis parallel to said first direction, said first holes being coaxial to each other to receive a respective hinge pin and said second holes being coaxial to each other to receive a respective hinge pin, - wherein said first hinge elements are suitable for interposing the second hinge elements of another said module with the respective first holes and second holes coaxially aligned each other to receive a hinge pin linking said modules to each other, said first hinge elements and said second hinge elements interposed to each other leaving free a plurality of spaces in at least some of which at least a respective roller is received, characterized in that said roller having an outer radius and being coaxial with respect to said first holes and second holes aligned to each other, wherein each one of said rollers projects with a portion from said upper surface, the plane parallel with respect to said first and second directions (D1, D2) and tangent to said portion of said rollers projecting from said upper surface defining said transport surface, and comprising at least a meshing element suitable to mesh with the teeth of drive gears of said continuous motorized conveyor, and said lower surface extends for at least a tract along a plane which is parallel with respect to said transport surface and which is spaced from the plane passing through the axes of said first holes and of said second holes by a distance higher than the outer radius of said rollers, said at least a tract of said lower surface forming a support plane suitable to rest in sliding contact along slider tracks of said motorized continuous conveyor, wherein said base body comprises a central rib extending in length between two opposed faces (12, 13) and in thickness between said upper surface and said lower surface, wherein said rib has a first longitudinal surface and a second longitudinal surface connecting said upper surface and said lower surface and defining respectively said first longitudinal edge and said second longitudinal edge, wherein said support plane extends substantially continuously along said lower surface for the whole length of said rib, being only interrupted in correspondence of said meshing elements. - an upper surface and a lower surface, - a first longitudinal edge and a second longitudinal edge, opposed to each other with respect to a second direction orthogonal with respect to said first direction, - a plurality of first hinge elements and a plurality of second hinge elements projecting respectively from said first edge and from said second edge along said second direction, wherein each one of said first hinge elements is crossed by a respective first hole with axis parallel to said first direction and each one of said second hinge elements is crossed by a respective second hole with axis parallel to said first direction, said first holes being coaxial to each other to receive a respective hinge pin and said second holes being coaxial to each other to receive a respective hinge pin, - wherein said first hinge elements are suitable for interposing the second hinge elements of another said module with the respective first holes and second holes coaxially aligned each other to receive a hinge pin linking said modules to each other, said first hinge elements and said second hinge elements interposed to each other leaving free a plurality of spaces in at least some of which at least a respective roller is received, characterized in that said roller having an outer radius and being coaxial with respect to said first holes and second holes aligned to each other, wherein each one of said rollers projects with a portion from said upper surface, the plane parallel with respect to said first and second directions (D1, D2) and tangent to said portion of said rollers projecting from said upper surface defining said transport surface, and comprising at least a meshing element suitable to mesh with the teeth of drive gears of said continuous motorized conveyor, and said lower surface extends for at least a tract along a plane which is parallel with respect to said transport surface and which is spaced from the plane passing through the axes of said first holes and of said second holes by a distance higher than the outer radius of said rollers, said at least a tract of said lower surface forming a support plane suitable to rest in sliding contact along slider tracks of said motorized continuous conveyor,