The gear boxes for cranes are strictly designed in accordance to IS 3177 and IS 4460. The gear box casings are fabricated out of steel confirming to IS 2062-Gr B. The gear box casings are stress relieved after fabrication. The gear boxes are of spur/helical design. We can offer you gear boxes having input/ output shafts at right angles with the use of helical gears. The hardness of gears is 180-210 BHN and that of pinions 200 - 260 BHN. Suitable breathing hole, oil level indicator, drain plug and inspection window with cover is provided for all gear boxes.