A belt is a loop of flexible material used to link two or more rotating shafts mechanically, most often parallel. Belts may be used as a source of motion, to transmit power efficiently or to track relative movement. Belts are looped over pulleys and may have a twist between the pulleys, and the shafts need not be parallel. Features. TakeUp Drive Belt. Made with high quality materialSpecifications. Height 0.2 in / 0.51 cm. Width 3.2 in / 8.13 cm. Length 3.1 in / 7.87 cm