초록 ▼

A conveyor roller wheel assembly comprising a roller member rotatably mounted on a hub member, as by means of a plain journal bearing or by rolling elements such as ball or roller bearings, between inner and outer seal flanges on the hub member, the hub member having a portion of reduced diameter be

A conveyor roller wheel assembly comprising a roller member rotatably mounted on a hub member, as by means of a plain journal bearing or by rolling elements such as ball or roller bearings, between inner and outer seal flanges on the hub member, the hub member having a portion of reduced diameter between its ends and a lubrication passageway extending from an end face of the hub member and communicating with its reduced diameter portion through a surface thereof. Facing side surfaces of the roller member and seal flanges are shaped to define annular labyrinth seal passageways therearound of restricted cross section and of tortuous configuration radially of the conveyor wheel. One or more of the wheel assembly members may be constituted of moldings of sintered powered metal.

대표청구항 ▼

A self-contained unitary conveyor roller wheel assembly comprising a hub member having an outturned seal flange at one end, an inner cap seal flange member mounted on the other end of said hub member and extending radially outward therefrom, and a roller member rotatably supported on said hub member

A self-contained unitary conveyor roller wheel assembly comprising a hub member having an outturned seal flange at one end, an inner cap seal flange member mounted on the other end of said hub member and extending radially outward therefrom, and a roller member rotatably supported on said hub member between the said flanges, each of said members being constituted by a molded body of sintered powder metal, interengaging means on and locking said hub and cap seal flange members together in predetermined fixed axial relation against both axial and rotative movement relative to one another and in fixed axial relation to said roller member as a unitary assembly therewith, said hub member having at least a portion of its axial extent of reduced outside diameter between its ends forming at least in part an annular passageway therearound, and said hub member further having a lubrication bore extending in a straight line from an end face thereof to and communicating with said passageway through a surface of said reduced diameter portion.