Planetary gear box has got modular construction and its every single stage consists of one internal gear meshing with three or four planet gears mounted on planet carrier.These also engage with sun gear which is meshing with planet gears and is transmitted out by planet carrier maintain the same direction of rotation. The planet carrier is connected to the output shaft of the gera unit. The design feature employed with the sun gear floating amongst the planet gears together with accurate machining of parts,grants uniform load distribution among the planet gears.
The material used is low carbon nickel chrome and molybdenum alloy steel for gears and high carbon steel for shafts.Casings are made up of graded cast iron or cast steel as necessary to withstand the loads on the output shaft. Planet gears run on needle bearings while deep grove ball bearing or roller bearings are used on drive shafts.
The gear boxes are available either foot mounted or flange mounted construction and drive can be given by pulley/sprocket or coupling with help of solid shaft.Female shafts and flange type are also available to mount the direct electric motor of Flange mounted construction as per IEC standards.
The gear boxes can be offered eigther bevel Or worm & worm wheel at the input to have right angled transmissions wherever orientation & application demands for.
