The housing is made of high quality fine-grain cast Iron as per ASTM A48. The housing is filled with lubrication oil to facilitate the cooling of the gear sets while rotation.
Gears are spiral bevel gears type, available in increasing or decreasing ratios. Gears are made of high strength steel precision machined for quiet and smooth operation and high torque transmission. Gears are designed to AGMA specifications with 1.5 service factor.
Horizontal shaft is solid and the vertical shaft is hollow. Both shafts are designed to operate under high speed and transmit high torque. Shafts are made of high strength hardened steel for maximum performance.
Large capacity thrust bearing are provided to handle wide range of pump equipment and heads of water. SMi RAGD are designed with TWO-WAY thrust bearings to handle the up-thrust and avoid equipment damage.