These heavy-duty constructed 3-shaft gearboxes are made to accommodate CW or CCW rotation of the vacuum pump. They feature bi-rotational angle drive, heavy-duty gears and a 1" or 1.25" output. These gearboxes have a 1:1 ratio.
1" shaft, fits up to HXL4
1-1/4" shaft, fits HXL75- HXL400W