Abstract: Motorized rotational drive system (8) for rotating a framework about an axis of rotation, preferably a horizontal axis of rotation, for a solar collector tracker support system, said motorized system comprising: two ring gear sectors (80) extending in two planes orthogonal to the axis of rotation and provided with means of attachment to said framework; a transmission shaft (82) supporting two pinions (81) in mesh with the corresponding ring gear sectors (80) for synchronized rotation of said ring gear sectors (80); and a motorized drive means for driving the rotation of said transmission shaft (82).

Abstract: Tracker support system (1) for solar sensor comprising:—a fixed structure (2) for anchoring to the ground exhibiting several anchoring points (21) defining an anchoring plane and separated from one another by distances termed ground prints, including a larger ground print distance (DE) established between at least two anchoring points (21); and—a movable structure (3) comprising:—a first armature (4) mounted rotatably on the fixed structure (2) according to a vertical axis of rotation (AV); and—a second armature (5) defining a support plane for the solar sensors and mounted rotatably on the first armature (4) according to a horizontal axis of rotation (AH) extending to a distance termed the zenith height from the anchoring plane; said tracker support system (1) being noteworthy in that the ratio of the largest ground print distance (DE) to the zenith height is included in a span ranging from 0.5 to 1.5, and preferably in a span ranging from 0.8 to 1.2.

Abstract: Motorized rotational drive system (8) for rotating a framework about an axis of rotation, preferably a horizontal axis of rotation, for a solar collector tracker support system, said motorized system comprising: two ring gear sectors (80) extending in two planes orthogonal to the axis of rotation and provided with means of attachment to said framework; a transmission shaft (82) supporting two pinions (81) in mesh with the corresponding ring gear sectors (80) for synchronized rotation of said ring gear sectors (80); and a motorized drive means for driving the rotation of said transmission shaft (82).