... for continous duty 2:Varied motor combination,mounting position 3:CE,ISO certifications 4:Parallel hollow gearbox Model 37 47 ... for reference. (Parallel gearbox) Generall introduction: The HFseries gearbox, are novel transmission device and composed of Y series motor, helical gear, ... seal device . 6:Varied options of the mounting position ,motor combination. 7:with small volume , helical gear achieve ...