Roller ne muhimmin sassa na belt conveyor, da iri da yawa, da yawan adadin. Yana da kashi 35% na jimlar farashin mai jigilar belt, yana samar da fiye da kashi 70% na juriya, don haka ingancin roller yana da mahimmanci. Matsayin roller ne goyon bayan conveyor belt da kayan nauyi. Roller aiki dole ne mai sassauci da amintacce. Rage friction na conveyor belt da roller, yana taka muhimmiyar rawa a rayuwar conveyor belt, wanda ya kai sama da 25% na jimlar farashin conveyor. Kodayake roller yana da ƙaramin sashi a cikin conveyor belt, tsarin ba shi da rikitarwa, ƙirƙirar ingancin roller ba shi da sauƙi. Roller ne muhimmin sassa na belt conveyor, da iri da yawa, da yawan adadin. Yana da kashi 35% na jimlar farashin mai jigilar belt, yana samar da fiye da kashi 70% na juriya, don haka ingancin roller yana da mahimmanci. Matsayin roller ne goyon bayan conveyor belt da kayan nauyi. Roller aiki dole ne mai sassauci da amintacce. Rage friction na conveyor belt da roller, yana taka muhimmiyar rawa a rayuwar conveyor belt, wanda ya kai sama da 25% na jimlar farashin conveyor. Kodayake roller yana da ƙaramin sashi a cikin conveyor belt, tsarin ba shi da rikitarwa, ƙirƙirar ingancin roller ba shi da sauƙi. Akwai wadannan ka'idoji don hukunta mai kyau da mummunan roller: radial bugun adadin roller; Rolling sassauci; Axial motsi yawa.