Pinak industries manufactures an array of mechanical gears. People often looked for constant technological advancement to gauge the progression of a piece of equipment. Mechanical drive is the most noteworthy evolution in last 50 years and putting stuffs in the ground gradually shifted from trenchers to mechanical drive over last several years. Mechanical drives are useful for applications in gearboxes, shafts, pulleys, chains and sprockets to drive the trencher chain. Mechanical gears are useful for providing variable output speed from constant speed power source; provide torque increase for variable speed power source or provide torque increase for variable speed power source as in an automobile. These mechanical drive devices are less costly than competing electrical drives and with much simple control. The only disadvantage of the mechanical drives is that they are not durable and cannot be controlled as precisely as electrical drives. The mechanical drives cannot transmit as much power as electrical drives when variable speed is essential. Mechanical drives are useful for applications in industries like aerospace, mining and heavy industry. These mechanical drives are equipped with the advanced technology that offering more efficiency in operation. The mechanical drives are available with salient features like low-stress, universal mounting, high-strength monobloc casings, high-energy efficiency and low noise level. The monobloc design of the mechanical drives helps in increasing the center distances between the output shaft bearings thereby making the unit able to withstand significantly higher radial loading. Mechanical drives are available with internal spaces and void spaces where residues can be deposited.