SE12A slew gear for daul axis or one axis solar tracker with solar panels from 31-45square meters. SE12A slew gear for daul axis or one axis solar tracker with solar panels from 31-45square meters .Slew drive/slew gear a kind of tansmission part .It's made up of a worm gear, a slewing bearing, housing and an electric or hydraulic motor,it can be bear axial, radial loading,titling moment at the ...