One pinion drives the axis (the "grasp") when the second pinion is "preloaded" to get rid of the backlash (the "slave"). The preload is made electronically that has a Distinctive motor controller; these systems may also be build to generate collectively during cycle instances when backlash is not really vital. https://caidenrutro.bloggactivo.com/32020400/a-simple-key-for-gearbox-cvt-unveiled