NON-METAL SPROCKET
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, the high torque sprocket further includes a textile reinforcement embedded in the continuous toothed structure outer surface, and the textile reinforcement is selected from nylon, cotton, aramid, PTFE, and mixtures thereof.
1 . A high torque sprocket comprising a body defining an outer periphery and a hub section defining an inner surface for engaging a bushing, 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 polymer material.
2 . The high torque sprocket of claim 1 further comprising a flange disposed on a side of the body immediately adjacent the continuous toothed structure.
3 . The high torque sprocket of claim 2 further comprising a textile reinforcement embedded in a surface of the flange immediately adjacent the continuous toothed structure.
4 . The high torque sprocket of claim 1 further comprising a textile reinforcement embedded in the continuous toothed structure outer surface.
5 . The high torque sprocket of claim 4 , wherein the textile reinforcement is selected from nylon, cotton, aramid, PTFE, carbon cordage and mixtures thereof.
6 . The high torque sprocket of claim 1 , wherein the hub section inner surface is a tapered shape.
7 . The high torque sprocket of claim 6 , wherein the hub section inner surface is adapted to engage a conventional QD bushing or a taper-lock bushing.
8 . The high torque sprocket of claim 1 , wherein the castable polymer material is a polyurethane or epoxy material.
9 . The high torque sprocket of claim 1 , wherein the body is devoid of any metal structure.
10 . The high torque sprocket of claim 9 , wherein the body defines ports comprising threaded inserts disposed therein.
11 . The high torque sprocket of claim 1 , wherein the continuous toothed structure is formed of steel or the castable polymer material.
12 . The high torque sprocket of claim 1 as used as a synchronous sprocket, gear sprocket, pulley or coupling.
13 . A high torque sprocket comprising a body defining an outer periphery and a hub section defining an inner surface for engaging a bushing, and a belt engaging structure disposed on the outer periphery of the body, wherein the hub section inner surface is a tapered shape, and wherein the body is formed of a castable polymer material and devoid of any metal structure.
14 . The high torque sprocket of claim 13 , wherein a textile reinforcement is embedded in the body adjacent the hub section inner surface.
15 . The high torque sprocket of claim 13 further comprising a flange disposed on a side of the body immediately adjacent the belt engaging structure.
16 . The high torque sprocket of claim 15 further comprising a textile reinforcement embedded in a surface of the flange immediately adjacent the belt engaging structure.
17 . The high torque sprocket of claim 13 further comprising a textile reinforcement embedded in the belt engaging structure outer surface.
18 . The high torque sprocket of claim 17 , wherein the textile reinforcement is selected from nylon, cotton, aramid, PTFE, carbon cordage and mixtures thereof.
19 . The high torque sprocket of claim 13 , wherein the hub section inner surface is adapted to engage a conventional QD bushing or a taper-lock bushing.
20 . The high torque sprocket of claim 13 , wherein the castable polymer material is a polyurethane or epoxy material.
21 . The high torque sprocket of claim 13 as used for engaging a v-belt, poly v-belt, micro v-belt, or synchronous belt.
22 . A high torque sprocket comprising a body defining an outer periphery and a hub section for engaging a bushing, 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, and wherein an outer portion of the body is formed of a castable polymer material and an inner portion of the body is formed of steel.
23 . The high torque sprocket of claim 22 , wherein the castable polymer material is adhered to the inner portion of the body using a precoating.
24 . The high torque sprocket of claim 22 , wherein the castable polymer material is cast onto the inner portion of the body.