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Machined from 6061 aluminum, this 8mm Super Torque pitch pulley features 72 precisely machined teeth, a diameter of just under 7-1/4 inches, and a length of 4-1/2 inches.
Key features: Material: Lightweight, 6061 aluminum. Design: 72-tooth configuration for optimal torque transfer. Finish: Sulfuric anodized for corrosion and wear resistance. Custom Machining: Precision bore face holes enhance functionality. Built for durability and precision, this pulley is ideal for applications like conveyor systems, delivering reliable performance in demanding environments.
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Our in-house capabilities are a perfect example of how we can machine complete. This particular system is made from 4340 steel that’s normalized and nitrided for maximum hardness, having a 2MP pitch with 13 teeth and 4-1/2” long.
Unlike the usual method of cutting rack teeth with a dedicated tool, we milled these in-house—take a look at the program in the photo! This part is headed to a major defense company, showcasing the precision and quality we bring to every project. Designed for durability, it features 4 threaded ports (two 7/16-24 and two 1/2-20) connected by a central thru-hole to aid in oil and grease retention. The milled circles provide O-ring sealing surfaces, preventing leaks in or out. Machined using our CNC 5-axis mill—we think it came out great!
Let us know what projects you want HM to machine for you.  Made from durable 1117 steel, it features a 40 chain pitch, 8.75” diameter, and a 62mm bore. With two .640” holes running through its length, this sprocket is built for handling large chain-driven systems, perfect for heavy-duty applications!
 It's made of 4340 steel and measures 8.4” tall and 7” in diameter. Once this part has been through our CNC lathe and mill, it will be laser etched and plated with zinc to give it a shiny golden finish.
HM manufactured these small intricate timing pulleys with 30 teeth, a keyway and two screw holes.9/19/2023  One of the two screw holes is drilled through the keyway itself. Our MECO machine allows us to craft multiple variations of keyways to customers specifications. Pairing our CNC MECO with our various CNC machines provides the capabilities to create pieces to the highest quality standards.
 Shown here is what we start with to the final product. For this specific project, these pieces start off by being heat treated before coming to our CNC lathe to be profiled. It then is sent to our CNC mill and CNC hobber before a final heat treating process. Once the splines are completed, they are thoroughly checked by our quality department using our CMM machine.
 Pictured are 5mm HTD 1215 steel pulleys 7/8" in diameter. We start the production of these pulleys by utilizing our CNC lathe, followed by our CNC hobbing division. Once those two processes are completed, it gets flanged and plated.
 This piece contains 40 teeth, milled thru holes and a 1/2 inch keyway. Our state of the art capabilities allowed us to completely manufacture this pulley in house with our CNC 15” lathe, CNC broaching, CNC mill, and CNC hobber.
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AuthorPresident & CEO at HM Manufacturing, Inc. Board of Directors at National Association of Manufacturers (NAM), Chair at Technology & Manufacturing Association (TMA), Board of Directors at mHUB, Click to visit LinkedIn Archives
June 2026
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Wauconda IL 60084 Phone: (847) 487-8700 Fax: (847) 487-8707 |
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