Timing belts, also referred to as gear belts or synchronous belts, drive precision equipment with a pattern of teeth that mate to timing belt pulleys or idlers. Different shapes and patterns of teeth offer different torque, flexibility, and sound levels. Belt material offers differing levels of flexibility and resistance to heat, abrasion, oils, and ozone exposure. Timing belts should pair with a compatible pulley or idler series, and must match the pitch and width of the belt. They transmit power to equipment that requires exact position control such as 3D printers and robotic arms.