Photovoltaic solar tracker with optimized wear and synchronous transmission

The tracker (25) comprises: torque structure (1, 28); slewing drive (2, 30), with output shaft (5), and engaging device(s) (11) coaxially mounted on output shaft (5); and rotation device (9, 31), attached to torque structure (1, 28), and provided with teeth (17) engaging with engaging device(s) (11). Engaging device (11) comprises: opposing plates (12), interconnected by connections (12, 13); and rollers (16) mounted on connections (12, 13), with free coaxial rotation, for engaging with teeth (17). A solar facility comprises: the driver tracker (25); driven trackers (26, 27); and connection device(s) (32, 33), rotating driven trackers (26, 27) from driver tracker (25). Trackers (25, 26, 27) comprise two cranks (34), attached to torque structure (1,28). Rotation device (31) comprises toothed wheels (9, 36), attached to torque structure (1, 28) and actuated by slewing drive (2, 30). Connection device (32, 33) comprises transmission structure (38) pivotally connected to cranks (34), and comprising facing profiles (39, 40).