Carrier roller and conveyor belt device

The embodiment of the utility model discloses a carrier roller and conveyor belt equipment. The carrier roller comprises a roller cylinder, a roller shaft, a labyrinth seal assembly, an end bearing component, a middle bearing component, an end bearing seat and a middle bearing seat, a shaft hole extending in the axial direction is formed in the roller, the roller shaft penetrates through the shaft hole, the two end bearing seats are arranged at the two ends in the shaft hole respectively, the middle bearing seat is arranged in the middle in the shaft hole, and the middle bearing component is installed in the middle bearing seat. Each end bearing seat is provided with an installation cavity, an inner side opening and an outer side opening, the inner side opening and the outer side opening are communicated with the installation cavity, the multiple end bearing components are installed in the installation cavities of the end bearing seats respectively, the roller shaft can penetrate through the inner side openin