A Spur Gear is typically toothed wheels that mesh with one another, allowing for the transfer of rotation and torque between the shafts. Helical Gear is a type of Gear with angled teeth that allows gradual and smooth engagement with other gears. Its primary function is to transfer power from the driveshafts to the fuel injection pump, which then pressurizes fuel and delivers it to the engine's combustion chambers and ensures that the fuel injection pump is properly timed with the engine's rotation.Attributes:•Provided with smooth surface finishing reduces wear and tear of the Gears.• Manufactured from steel offers high ductility and strength. Applications:A Spur Gear acts as a critical component used in the fuel injection pump for fuel transfer.