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US 10,865,868 B2Granted
Non-metal sprocket
AssigneeContiTech Antriebssysteme GmbH
InventorsFrank Feuerborn, Matthew A. Linn
Life of this patent
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AssigneeContiTech Antriebssysteme GmbH
InventorsFrank Feuerborn, Matthew A. Linn
Estimating the term…
A high torque sprocket includes a body defining an outer periphery and a hub section defining an inner surface for engaging a bushing. A continuous toothed structure is disposed on the outer periphery of the body, and a textile reinforcement embedded in the body adjacent the inner surface of the hub section. The body is formed of a castable polymer material. In some cases, one or two optional flanges are disposed on side(s) of the body immediately adjacent the continuous toothed structure, in some aspects, a textile reinforcement may be embedded in a surface of the flange(s) immediately adjacent the continuous toothed structure. In some aspects, ultra-high molecular weight polyethylene (UHMWPE) is incorporated into the castable polymer material mixture in an amount suitable to provide increased durability to the sprocket.
A high torque sprocket comprising a body defining an outer periphery and a recessed hub section defining an inner surface for engaging a bushing comprising a smooth circular outer surface and at least one threaded port for securing with the high torque sprocket, a continuous toothed structure disposed on the outer periphery of the body, and a textile reinforcement embedded in the body adjacent the inner surface of the hub section, wherein the body is formed of a castable polyurethane material, and wherein the castable polyurethane material comprises ultra-high molecular weight powder in an amount of from 1% to 10% by weight of the castable polyurethane material;
A high torque sprocket comprising a body defining an outer periphery and a recessed hub section defining an inner surface for engaging a bushing comprising a smooth circular outer surface and at least one threaded port for securing with the high torque sprocket, and a belt engaging structure disposed on the outer periphery of the body, wherein the hub section inner surface is a tapered shape, wherein the body is formed of a castable polyurethane material and devoid of any metal structure, and wherein the castable polyurethane material comprises ultra-high molecular weight powder in an amount of from 1% to 10% by weight of the castable polyurethane material;
A high torque sprocket comprising a body defining an outer periphery and a recessed hub section for engaging a bushing comprising a smooth circular outer surface and at least one threaded port for securing with the high torque sprocket, a continuous toothed structure disposed on the outer periphery of the body, and a textile reinforcement embedded in the hub section inner surface, wherein the hub section inner surface is a tapered shape, wherein an outer portion of the body is formed of a castable polyurethane material and an inner portion of the body is formed of steel, wherein the castable polyurethane material comprises ultra-high molecular weight powder in an amount of from 1% to 10% by weight of the castable polyurethane material, wherein the castable polyurethane material consists of a liquid which fills a mold and hardens to form the body, and wherein the hub section inner surface is adapted to engage a QD bushing, provided the castable polyurethane material is devoid of fibers.
Dependencies are inferred from the claim text.