A gear drive system comprising: first gear; a second gear meshing with the first gear and comprising: a first peripheral portion; a second peripheral portion circumferentially offset to the first peripheral portion; a third peripheral portion extending circumferentially between the first peripheral portion and the second peripheral portion; a first set of a plurality of gear teeth defined peripherally over the first peripheral portion, each gear tooth of the first set of the plurality of gear teeth having a gear tooth spacing between adjacent gear teeth; and a second set of a plurality of gear teeth defined peripherally over the third peripheral portion, each gear tooth of the second set of the plurality of gear teeth having a gear tooth spacing between adjacent gear teeth, the gear tooth spacing of the first set of the plurality of gear teeth being less than the gear tooth spacing of the second set of the plurality of gear teeth, characterized in that: the first peripheral portion is more resilient than the third peripheral portion, resulting in: a first backlash between the first set of gear teeth and teeth of the intermeshing first gear, and a second backlash between the second set of gear teeth and the teeth of the intermeshing first gear, the first backlash being less than the second backlash. first gear; a second gear meshing with the first gear and comprising: a first peripheral portion; a second peripheral portion circumferentially offset to the first peripheral portion; a third peripheral portion extending circumferentially between the first peripheral portion and the second peripheral portion; a first set of a plurality of gear teeth defined peripherally over the first peripheral portion, each gear tooth of the first set of the plurality of gear teeth having a gear tooth spacing between adjacent gear teeth; and a second set of a plurality of gear teeth defined peripherally over the third peripheral portion, each gear tooth of the second set of the plurality of gear teeth having a gear tooth spacing between adjacent gear teeth, the gear tooth spacing of the first set of the plurality of gear teeth being less than the gear tooth spacing of the second set of the plurality of gear teeth, characterized in that: the first peripheral portion is more resilient than the third peripheral portion, resulting in: a first backlash between the first set of gear teeth and teeth of the intermeshing first gear, and a second backlash between the second set of gear teeth and the teeth of the intermeshing first gear, the first backlash being less than the second backlash. a first peripheral portion; a second peripheral portion circumferentially offset to the first peripheral portion; a third peripheral portion extending circumferentially between the first peripheral portion and the second peripheral portion; a first set of a plurality of gear teeth defined peripherally over the first peripheral portion, each gear tooth of the first set of the plurality of gear teeth having a gear tooth spacing between adjacent gear teeth; and a second set of a plurality of gear teeth defined peripherally over the third peripheral portion, each gear tooth of the second set of the plurality of gear teeth having a gear tooth spacing between adjacent gear teeth, the gear tooth spacing of the first set of the plurality of gear teeth being less than the gear tooth spacing of the second set of the plurality of gear teeth, characterized in that: the first peripheral portion is more resilient than the third peripheral portion, resulting in: a first backlash between the first set of gear teeth and teeth of the intermeshing first gear, and a second backlash between the second set of gear teeth and the teeth of the intermeshing first gear, the first backlash being less than the second backlash. a first backlash between the first set of gear teeth and teeth of the intermeshing first gear, and a second backlash between the second set of gear teeth and the teeth of the intermeshing first gear, the first backlash being less than the second backlash.