... products.it consists of worm,sleing ting,housing,motor and so on.Because the core part is ... ,NFB slew drive is easy to mount and maintain,and saves more space. Products can be widely ... heavy pallet transporter,container carrier,crane,solar trcker and new energy field. cranes bearing Characteristics of ... between meshing teeth,the mechanism has self-locking and achieve backward self-locking.It means only ...