Rotary mower gearboxes are an essential part of lawn mowers used in agricultural applications for cutting and mowing. The purpose of the gearbox is to transmit the power generated by the tractor’s power take-off (PTO) shaft to the rotating blades for cutting and mowing grass, crops or other vegetation. An efficient gearbox is critical as it ensures the mower blades spin at high speeds to quickly cut and chop dense vegetation. The gearbox itself is generally made of cast iron or aluminum. It consists of several important components such as input and output shafts, gears, bearings, and seals. The input shaft is connected to the tractor’s PTO which is responsible for generating rotational power.