Excavator Sprocket Ex200 Bulldozer Sprocket Engineering machinery Parts Drive teeth the excavator drive gear is an important part of the excavator and is used to propel the excavator forward. However, the transmission part of the excavator, that is, the drive tooth of the excavator, is easily damaged. Play the role of driving track, fix on the travel motor, and transmit the driving force of the travel motor to the track through gear structure. Usually there is 1 of each travel motor. Our products are according to the standard of OEM to manufacture.