A lightweight high capacity industrial caster which has three major parts, an upper assembly, a lower assembly, and a roller assembly. The upper assembly includes an upper plate with a first top surface and first bottom surface, the first bottom surface having a circular upper race groove within the
A lightweight high capacity industrial caster which has three major parts, an upper assembly, a lower assembly, and a roller assembly. The upper assembly includes an upper plate with a first top surface and first bottom surface, the first bottom surface having a circular upper race groove within the plane of the upper plate, a kingpin having a top end and a bottom end, connected to the upper plate on the top end and extending downwardly away from the first bottom surface, the kingpin centered with respect to the circular upper race groove and an upper race insert carried in the upper race groove. The lower assembly includes a lower plate with a second top surface and second bottom surface, the second top surface having a circular lower race groove within the plane of the lower plate, a hole in the lower plate at the center of the circular lower race groove through which the kingpin extends, a lower race insert carried in the lower race groove, a first set of bearings carried in the lower race insert. Finally, the roller assembly includes two roller support members extending downwardly away from the second bottom surface, and a roller structure attached to the two roller support members and is adapted to rotate.
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A lightweight high capacity industrial caster which has three major parts, an upper assembly, a lower assembly, and a roller assembly. The upper assembly includes an upper plate with a first top surface and first bottom surface, the first bottom surface having a circular upper race groove within the
A lightweight high capacity industrial caster which has three major parts, an upper assembly, a lower assembly, and a roller assembly. The upper assembly includes an upper plate with a first top surface and first bottom surface, the first bottom surface having a circular upper race groove within the plane of the upper plate, a kingpin having a top end and a bottom end, connected to the upper plate on the top end and extending downwardly away from the first bottom surface, the kingpin centered with respect to the circular upper race groove and an upper race insert carried in the upper race groove. The lower assembly includes a lower plate with a second top surface and second bottom surface, the second top surface having a circular lower race groove within the plane of the lower plate, a hole in the lower plate at the center of the circular lower race groove through which the kingpin extends, a lower race insert carried in the lower race groove, a first set of bearings carried in the lower race insert. Finally, the roller assembly includes two roller support members extending downwardly away from the second bottom surface, and a roller structure attached to the two roller support members and is adapted to rotate. the mattress, said receiving member being attached to said lower surface of said top sheet, said receiving member including a front panel, pair of side panels and a lower panel such that a pouch is defined having an opening facing said second edge, said front panel extends along a portion of said first edge between said third and fourth edges, said front panel having a length less than a length of said first edge such that said first edge extends beyond each of said side panels, said receiving member comprising a cloth material; and a pair of elastic members being attached to each of a pair of edges of said receiving member at junctures of said side panels and said lower panel, a first one of said elastic members extending along a portion of an edge of said lower panel and a first one of said side panels of said receiving member and a second one of said elastic members extending along a portion of the edge of said lower panel and an edge of a second one of said side panels of said receiving member for extending over lower edges of the mattress.
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