This month marks the 45th anniversary of HM! As we reflect on the last 45 years, we’d like to extend our sincerest gratitude to our customers, employees and our community. The continual evolution and success of our family business is driven by your support. #familybusiness

⚙Product Spotlight ⚙ This part is one of the smallest gears we’ve ever manufactured at just .400" long and .600" in diameter. Made from pre-hardened 4140 steel at 28-34 HRC, this 20DP, 10-tooth gear features two precisely ground hubs held to within .0005" to ensure accuracy during hobbing. It’s another example of how we deliver high-precision components no matter the scale. For more information on our capabilities or products, visit our website or drop us a message! #PrecisionEngineering #HMManufacturing #QualityMatters #InHouseEngineering #FutureBuilt #PrecisionMatters #PackingInnovation #SmartManufacturing

Precision that takes off ✈✈✈ These aerospace spline coupling may be just over half an inch in diameter, but their complexity tells a much bigger story. Machined from heat treated H11 tool steel, each part features precision wire-cut internal splines and a clean electropolished finish to remove EDM recast. Despite their size, these components pack a serious level of complexity and are a great example of the tight tolerances and high standards we deliver every day. For more information on our capabilities or products, visit our website or drop us a message! #AerospaceComponents #PrecisionMachining #HMManufacturing #EngineeringExcellence #PrecisionEngineering #MadeAtHM #FlightReady #MachiningTheFuture

Our engineering intern Elliot is back with more insights from his summer at HM. He shared some of his thoughts in this 1-minute interview about what he’s learned so far and what he’s excited to take on next here. From hands-on projects to team collaboration, he’s gaining real-world experience that is shaping his future in engineering. Check out the full interview below! 👇 #EngineeringIntern #InternSpotlight #LifeAtHM #HandsOnLearning #HMManufacturing #EngineeringTheFuture

Another precision part in progress-- machined from 17-4 stainless steel and heat treated to Condition H1075 featuring an internal spline, this one’s a perfect fit in more ways than one. After heat treat, this part goes through passivation and MPI to ensure strength and integrity. Designed to fit with an external spline this one also features a cut slot to allow it to flex and clamp tightly to the mating component. Mostly mill work, except for the spline itself, which we shape in-house, our capabilities really shine through. For more information on our capabilities or products, visit our website or drop us a message! #InHouseEngineering #MadeinUSA #AmericanManufacturing #HMManufacturing #FutureBuilt #QualityMatters #PrecisionEngineering #AerospaceEngineering #FlightReady

Two gears, one mission: precision in every step. This 13-8PH stainless steel part starts with a normalizing process to reduce the risk of distorting later on. We then turn the net shape, leaving two hubs oversized. The finer 64DP gear teeth are shaped first due to tool clearance limits, followed by hobbing the larger 48DP gear. After initial shaping, the part is core hardened to 34 HRC. Then we turn the hubs for final size before sending it for a nitriding treatment. For more information on our capabilities or products, visit our website or drop us a message! #PrecisionGears #DualGearDesign #HMManufacturing #AerospaceMachining #FutureAviation #BuiltForFlight #MadeInUSA #EngineeringToPerform

Three anodized aluminum timing belt pulleys, all machined from 6061 and finished with 2MP 60-tooth profiles, made for precision and performance. Each one features a unique design and functionality, but all were precision-cut and anodized to combine lightweight performance with visual impact. ⚙ Black anodized with hubs, keyway, set screw hole, and 7 tapped holes ⚙ Red anodized with 4 mounting slots ⚙ Black anodized straight bore, clean fit and finish Need custom timing belt pulleys with both performance and style? Visit hmmanufacturing.com or send us a message to get started. #CustomGears #PrecisionEngineering #RedAnodize #BlackAnodize #HMManufacturing #BuiltForAssembly #CNCMachining #AluminumGears #AmericanMade #QualityMatters

This one is as functional as it is visually appealing 🎀 Made from 4340 steel, this aerospace coupling is thru hardened and nitrided for maximum surface toughness. The hexagonal bore aligns perfectly with the dual V-cut geometry, while four .256" holes and two .300" slots allow for secure mounting to the assembly. A refined design with precision in every cut. For more information on our capabilities or products, visit our website or drop us a message! #PrecisionEngineering #HMManufacturing #MadeInUSA #FlightReady #FutureBuilt #AerospacePrecision #AmericanManufacturing #QualityMatters

Need bushings? We make those too. From custom runs to repeat orders, we’re your go-to source for precision components- all under one roof. Proudly machined in the USA, this custom QD-SH bushing is being made in-house--faster and built to fit. Machined from 1215 steel with a 22mm bore and 6-point face mounting, it’s a versatile part used in a wide variety of assemblies. Contact us today or visit our website to see how we can help with your next project! #CustomBushings #PrecisionMachining #MadeInUSA #IndustrialBushings #EngineeringComponents #HMManufacturing #BuiltToPerform #AdaptableSolutions #FormMeetsFunction

Welcome Lexi, our business development intern! Lexi is a rising senior at Lake Zurich High School and joined HM Manufacturing through a high school internship program. With a passion for data and math, she took on a creative role this summer—designing marketing content, writing captions, and creating social media posts. In her time here, Lexi has built skills in branding, content strategy, and digital communication. She has also gained insight into how business and manufacturing combine. Outside of school, Lexi enjoys traveling, playing piano, golfing, and crocheting. After graduation, Lexi plans to pursue a degree in data science or applied math. We’re excited to see where her talents take her next! #HMManufacturing #BusinessDevelopment #Classof2026 #InternAppreciation #LifeAtHM #Marketing #FutureBusinessLeaders #SummerInternship #CareerInspiration

⚙Product Spotlight⚙ This 74-Tooth Pulley is precisely designed with a 2mm PowerGrip pitch tooth profile. This product features a M27 thread through its center. This pulley measures just under 2" in diameter and is about 5/8" long. Crafted from high-quality aluminum, it's the go-to timing belt pulley for the packing industry. Precision built. Performance guaranteed. For more information on our capabilities or products, visit our website or drop us a message! #PrecisionEngineering #HMManufacturing #QualityMatters #InHouseEngineering #FutureBuilt #PrecisionMatters #PackingInnovation #SmartManufacturing

Precision you can see! At nearly 42" long and weighing around 140 lbs, this is one of the largest shafts we’ve produced. Made from heat-treated 17-4 stainless steel (H1025), it features multiple stepped diameters, a custom cut 16/32DP spline, and precision 4.325-12 threads. Designed for high-load applications, this shaft showcases our advanced capabilities in hard turning, threading, and spline milling 🛠⚙ For more information on our capabilities or products, visit our website or drop us a message! #PrecisionEngineering #HMManufacturing #QualityMatters #BuiltToLast #InHouseEngineering #AmericanMade #PrecisionMatters #CraftedForPerformance #FutureBuilt #MachiningTheFuture #AmericanManufacturing

Built for the future of flight, this 15-5PH steel component is precision-machined entirely in house. To ensure aerospace-grade quality, this part undergoes Magnetic Particle Inspections to detect even the smallest material flaws. The next generation of air mobility has arrived ✈ For more information on our capabilities or products, visit our website or drop us a message! #MadeinUSA #AmericanManufacturing #PrecisionEngineering #HMManufacturing #QualityMatters #InHouseEngineering #AerospaceEngineering #AmericanMade #CraftedForPerformance #FutureBuilt #MachiningTheFuture #FlightReady #PrecisionMatters #BuiltToLast #AerospacePrecision

This stainless-steel roller shaft features precision-cut grooves across its face to assist in food processing applications. Part of a 3-piece assembly, it’s made from 304 stainless steel and includes a unique internal dye detection system--green dye is sealed inside and released if the part fractures during use, helping ensure food safety. One end is fitted with a stainless plug, while the other is driven by a stainless pulley. Machined with pride. Manufactured in the USA. For more information on our capabilities or products, visit our website or drop us a message! #AmericanManufacturing #MadeinUSA #PrecisionEngineering #HMManufacturing #InHouseEngineering #AmericanMade #CraftedForPerformance #FutureBuilt #MachiningTheFuture #PrecisionMatters #BuiltToLast

Say hello to our newest intern, Elliot! Elliot is joining us as an engineering intern and is heading into his senior year at the University of Illinois Urbana-Champaign. Majoring in Systems Engineering, he’s excited to dive into hands-on projects and learn more about the manufacturing world. We documented his first week at HM Manufacturing as he explored the shop floor, engaged with the team through thoughtful questions, and began gaining insight into our operations. We’re looking forward to seeing how he grows with us this summer! #HMManufacturing #ManufacturingCareers #Classof2026 #EngineeringTheFuture #InternAppreciation #EngineeringStudent #SystemsEngineering #FutureEngineering #WeekInTheLife #LifeAtHM #NextGenEngineers

Precision meets performance! This steel timing belt pulley measures just over 1" in diameter and 1.5" in length, this 17-tooth pulley features an AT5 pitch tooth profile. The tapped holes and wire burned slot in the hub allow this to clamp securely onto a shaft. Machined entirely in-house using a CNC lathe, CNC mill, CNC gear hobber, wire EDM, and finished with zinc plating. Engineered to exceed your expectations 🛠 For more information on our capabilities or products, visit our website or drop us a message! #MadeinUSA #AmericanManufacturing #PrecisionEngineering #HMManufacturing #QualityMatters #InHouseEngineering #AmericanMade

We’re back! Something new is coming August 1st. Our new website is faster, sleeker, and built to match the cutting-edge machining capabilities we’ve added. From advanced automation to expanded production capacity, HM Manufacturing is taking precision and power transmission to the next level. You’ll be able to explore it all--gears, timing belt pulleys, splines, shafts, and sheaves--through a bold, modern design that reflects the quality we deliver. #Manufacturing #WebsiteLaunch #HMManufacturing #FreshLook #CustomManufacturing #BuiltToPerform #Automation #ModernManufacturing

Today, we pause to honor and express our gratitude to the brave men and women who have served in the United States Armed Forces. Your courage, dedication, and sacrifice inspire us all. Thank you for your service, today and every day. #VeteransDay #ThankYouVeterans #HMManufacturing #Gratitude #HonorAndRespect #AmericanMade #USAManufacturing

Earlier this month, we had the pleasure of hosting a visit from AMT at our shop. As the first AMT event following IMTS, this gathering serves as a crucial lead generator for the manufacturing sector. During the visit, we provided participants with a tour of our shop floor and demonstrated our production processes. We also discussed MTForecast, which offers the latest market insights to help build winning sales strategies following the thousands of connections exhibitors made at their booths. By combining global macroeconomic news, sector-specific deep dives, and valuable networking opportunities, attendees can develop agile strategies to navigate changing market conditions, stay ahead of the competition, and drive growth. Participants can choose from Strategy, Opportunity, and Data tracks, focusing on what matters most to their business. Thank you, @amtonline for taking the time to visit us! #HMManufacturing #familybusiness #ManufacturingExcellence #MarketTrends #Collaboration #ManufacturingIndustry #Innovation

Precision in action! ✨ This CNC broaching process cuts a splined bore one tooth at a time. Using a custom insert, the broaching head moves up and down, shaving off just .010” with each pass until we reach the final depth of .150”-.200” per tooth! ⚙️ Though it takes time, this method lets us achieve the deep, clean splines that the customer specified for. 💥 #CNCBroaching #ManufacturingMagic #MachiningProcess #SplineCoupling #HomeMadeManufacturing #PrecisionProducts #Innovation

Otto, our Okuma Robot is back in action! 🤖 💥 At HM, we integrate the latest in automation technology, allowing us to handle large-scale production runs with efficiency and precision. From concept to completion, our advanced capabilities are designed to meet your unique needs. Visit our website hmmanufacturing.com to explore how we can support your next project! #HMmanufacturing #FamilyBusiness #Robotics #Technology #AdvancingManufacturing #MachiningLife #MadeInAmerica