| 摘要 |
A wear-resistant roller of a conveyor is provided to more stably transfer objects on the conveyor by forming an external diameter of a central part of the roller greater than an external diameter of an edge thereof for maintaining a top plane of the conveyor horizontally in spite of sagging of the central part of the roller. A wear-resistant roller of a conveyor includes a shaft(2), bearing members(6), a shaft fixing body(5), a pipe(3), a cover, an external material(4), and a wear-resistant material. The bearing members are mounted on both sides of the shaft. The shaft fixing body is mounted on the bearing members. The pipe is mounted on the shaft fixing body. The cover is made of rubber or synthetic resin and is inserted outside the bearing member and the shaft fixing body for protecting the bearing member from dust or foreign substance. The external material is a disk or a ring in shape and inserted in an external circumference of the pipe. The wear-resistant material is arranged on a central part of roller.
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