| 摘要 |
A belt conveyor roller includes a main shaft (2a); a pair of rolling bearings (3) mounted next to the ends of the main shaft (2a); a cylindrical tubular body (4), surrounding the main shaft (2a) and incorporating, inside each opposite end, a cylindrical tubular sleeve (5), having a smaller diameter and being seated on the external path of the respective rolling bearing (3); and a sealing element (50) concentrically disposed in relation to the main shaft (2a), at each end of the latter that is external to a respective rolling bearing (3), wherein an external edge (51a) is attached to the cylindrical sleeve (5), and wherein an internal free edge (52b) is in permanent contact with the surface of a shaft end portion with reduced diameter.
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