In gear design, the backlash is introduced in the design itself (not by tolerances of manufacturing) to allow free meshing of the gears. The backlash in the design can be minimized by reducing the pitch of the gears. For example, If the pitch of a gear is halved the designed backlash can also be halved. Though the reduced pitch also reduces the torque capacity of the gear. Similarly, is it possible to reduce the pitch of the lead screw to reduce the backlash in the design?