The pin-feed hole is open at the center or both ends excluding example 5 (please refer to steel belt 25). The pin is installed in outer of the belt pulley. The pin of the belt pulley is hung on the hole of the belt. This is sprocket pulley. The steel belt is wrapped around sprocket pulley. The steel belt is transported while being continuously inserted the pin with the rotation of the belt pulley.
Title: Steel Belt (26)