slew drive bearing for heavy pallet transporter,container carrier,crane,solar tracker and new energy field cranes bearing slew drive is a new kind of slew products.it consists of worm,sleing ting,housing,motor and so on.Because the core part is slewing ring,so slew drive can bearing axial,radial loading and titling moment at the same time.Compare with the traditional slew products,NFB slew drive ...