Chain Sprockets and Gears

At TSE, we can fabricate all types of custom sprocket, gear, or conveyor components to meet your application needs. Which do you need? The first question we ask is which do you need? Sprockets and gears are grooved wheels that operate within a machine, but their functions are different. Gears are generally toothed wheels that connect with the teeth on another gear to transmit movement. Sprockets use their teeth to “bite” into or interact with one or more flexible components, like a chain or conveyor belt.

We can make several types of engineered plastic sprockets, including wire belt, roller chain, waste water and mill. Our expertise also cover keyways, setscrews, and A, B and C hubs.

From just a few to a few thousand, our custom-made machined plastic sprockets and gears are lightweight and won’t rust or corrode. They also lessen noise pollution and can reduce the need for lubricants, and in some cases eliminate them.

Custom Plastic Sprockets and Gears

Looking for profiles, dimensions, and drawings of the components and accessories we offer?
Check out our Engineered Polymers Division (EPD) Catalog to see a complete selection!

Material Choices

Although Sprockets and Gears can be machined out of a number of materials like Nylon, Teflon, and Acetal, the most popular is Duro-Glide® UHMW-PE.

Choose the material you are interested in for a brief overview of its properties. For a complete listing of available products and full physical properties, please see the Physical Properties of Plastics.

Duro-Glide® Plastics Physical Performance Properties

Performance Property ASTM Test Units UHMW-PE
Tensile Strength D638 73°F, psi 4,000-5,5000
Flexural Modulus of Elasticity (73°F, psi) D790 73°F, psi 75,000
Tensile Impact D1822 73°F,ft lb/in² 1,000
Coefficient of linear thermal expansion D696 in/in/°F 7.2×10.5
Deflection temperature @ 264 psi D648 °F
Deflection temperature @ 66 psi D648 °F 158 – 174
Maximum continuous service temp in air °F 160/180
Water absorption immersion (24 hrs) D570 % <.01

Natural Extruded Nylon Physical Performance Properties

Performance Property ASTM Test Units Nylon
Tensile Strength D638 73°F, psi 9,000-12,000
Flexural Modulus of Elasticity D790 73°F, psi 175,000-410,000
Tensile Impact D1822 73°F, ft lb/in² 90-180
Coefficient of linear thermal expansion D696 in/in/°F 5.5×10.5
Deflection temperature @ 264 psi D648 °F 200-450
Deflection temperature @ 66 psi D648 °F 400-460
Maximum continuous service temp in air °F 180-200
Water absorption immersion (24 hrs) D570 % 0.6-1.5

Molded Teflon® Physical Performance Properties

Performance Property ASTM Test Units Teflon®
Tensile Strength D638 73°F, psi 1,500-5,000
Flexural Modulus of Elasticity D790 73°F, psi 90,000-110,000
Tensile Impact D1822 73°F, ft lb/in² 30-200
Coefficient of linear thermal expansion D696 in/in/°F 5.5-7.5×10.5
Deflection temperature @ 264 psi D648 °F 100-140
Deflection temperature @ 66 psi D648 °F
Maximum continuous service temp in air °F 500
Water absorption immersion (24 hrs) D570 % 0.00-0.05

Extruded Acetal Physical Performance Properties

Performance Property ASTM Test Units Acetal
Tensile Strength D638 73°F, psi 8,800-12,000
Flexural Modulus of Elasticity D790 73°F, psi 375,000-550,000
Tensile Impact D1822 73°F, ft lb/in² 40-90
Coefficient of linear thermal expansion D696 in/in/°F 4.2-4.7×10.5
Deflection temperature @ 264 psi D648 °F 230-255
Deflection temperature @ 66 psi D648 °F 316-338
Maximum continuous service temp in air °F 180
Water absorption immersion (24 hrs) D570 % 0.12-0.25

Considerations

Below are some aspects to consider when you are determining your sprocket or gear. You can also download our Sprocket and Gear Buyers Guide to aid in your decision.

Chain Type Set Screws Number of Teeth
Bore Type & Size Split or One-Piece Key Way
Hub Type Nominal Width Outside Diameter
Hub Diameter Pitch and Pitch Diameter Length Through Bore (LTB)

 

Custom Plastic Sprockets and Gears
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