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Gear design is one of the most critical components in the Mechanical Power Transmission industry. Among all the gear design parameters pressure angle is the most critical parameter, which mainly affects the load carrying capacity of the gear. Generally gears are designed with a symmetric pressure angle for drive and coast side. It means that both flank side of gear are able to have same load carrying capacity. In some applications, such as in wind turbines, the gears experience only uni-directional loading. In such cases, the geometry of the drive side need not be symmetric to the coast side. This allows for the design of gears with asymmetric teeth. Therefore new gear designs are needed because of the increasing performance requirements, such as high load capacity, high endurance, long life, and high speed. These gears provide flexibility to designers due to their non-standard design.

Manual transmissions, dual clutch transmissions and automatic manual transmissions use a synchronizer mechanism to have smooth gear shifting inside the gearbox and good shift feel inside the driver's cabin. Smooth gear shifting is related to the time required to complete the synchronization process inside the gearbox and a good shift feel related to the force required to shift the gear inside the driver's cabin. Moreover, good shift feel depends on efficiency of gear shifter mechanism, driveline vibrations and double bumps. Transmission gear shifting performance is the major concern area for all automotive and commercial sectors of vehicles. Transmission gear shifting performance in synchromesh gearbox depends on the capacity of synchronizer to produce sufficient frictional torque in required synchronization time and shifting force on the lever.

Usually long tractor trailers require bigger turning radius to negotiate any turn. Except for the highways in India, most of the roads are of narrow width and have sharper bends, which do not allow long tractor trailers to navigate through these roads in single attempt sometimes without to and fro movements. In industrial and ghat areas these type of maneuvers, create problems for smooth movement of the traffic, can lead to wastage of time and may damage expensive property around To tackle this problem a new concept has been proposed to split the trailer into two parts, thereby reducing the turning radius of the vehicle.