Hub mounting device
AssigneeRoller Bearing Company of America, Inc.
InventorWerner Hartl
Life of this patent
Estimating the term…
Abstract
A device for coupling a shaft and the hub of a machine element such as a pulley or gear for joint rotation, includes annular outer and inner wedges each of which has angularly spaced longitudinal slots, and ribs aligned with the slots. The wedges telescope so that the ribs of one wedge extend into the slots of the other, aligning longitudinal bores of the ribs to receive fastening elements such as screws. The fastening elements thus impart relative axial movement to the wedges to expand the same radially into gripping engagement with the shaft and hub.
Claims11
A radially expandable device for mounting a hub of a machine element having a mounting opening, upon a shaft extending through said opening, said device being interposed between the shaft and said element within the opening and comprising:
- (a) an annular outer wedge having a circumferential series of first slots and including a series of internal ribs aligned with the respective slots, said wedge having an outer surface bearing against the surface of said opening;
- (b) an annular inner wedge having a circumferential series of second slots receiving the internal ribs and including a series of external ribs aligned with the second slots and receivable by the first slots, the internal and external ribs having bores aligning with each other when the several ribs are received within their associated slots, the inner wedge having an inner surface bearing against the shaft and a tapered outer surface in slidable engagement with the tapered inner surface of the outer wedge;
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- (c) fastener means extending through the aligned bores of the ribs and adapted to move the wedges relative to each other in an axial direction and thereby expand the same radially into gripping engagement with the shaft and said element.
A radially expandable device for mounting a hub upon a shaft, comprising:
- (a) outer and inner wedges bearing against the hub and shaft respectively and having slidably contacting, tapered surfaces, each wedge having circumferentially spaced slots and having ribs aligned with the slots, the ribs of one wedge extending within the slots of the other wedge in alignment with the ribs of said other wedge;
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- (b) fastening elements extending through the aligned ribs for relatively axially shifting the wedges in a direction to radially expand the same into gripping engagement with the hub and shaft.
Dependencies are inferred from the claim text.