Machined nylon gears are typically used in applications that handle more torque and power. Typical applications for nylon gearing are conveyor systems, packaging equipment, and industrial automation.
Many times, nylon is used as a gear material in order to reduce the noise of a metal gear train or to reduce vibration. Nylon gears can also be introduced as a failsafe in a complex drivetrain.
These plastics are subject to greater dimensional instabilities, due to their larger coefficient of thermal expansion and moisture absorption.