Choosing the right spur gear manufacturers in the USA is critical for ensuring reliable power transmission, long service life, and consistent mechanical performance. With so many suppliers claiming high precision and fast delivery, buyers often struggle with issues such as inconsistent quality, limited customization options, and unclear manufacturing standards. In 2026, U.S. manufacturers continue to raise the bar through advanced CNC machining, strict quality control, and application-specific engineering support.
This list of the Top 10 Spur Gear Manufacturers in the USA highlights trusted companies known for precision spur gears, custom manufacturing capabilities, and proven industry experience. Whether you are sourcing spur gears for industrial machinery, automation systems, or OEM applications, these manufacturers offer dependable solutions tailored to your requirements. Check the list below and ask for a quote from the manufacturer that best fits your project needs.
Top 10 Spur Gear Manufacturers in the USA 2026：
3. Stock Drive Products / Sterling Instrument
4. Tracey Gear & Precision Shaft
1. PIC Design
Main Products: Precision spur gears, gear assemblies, custom gears
About: PIC Design is one of the most respected spur gear manufacturers in the USA, specializing in high-precision motion components. The company is well known for its ability to design and manufacture custom spur gears for demanding applications. Its spur gears are widely used in aerospace, robotics, medical devices, and advanced industrial automation. PIC Design offers gears in a wide range of materials, including alloy steel, stainless steel, brass, and engineered plastics. With a strong focus on tight tolerances and consistent quality, PIC Design supports both prototype and low-to-medium volume production. For OEMs seeking reliable precision spur gears with engineering support, PIC Design remains a top choice in the U.S. market.
2. Arrow Gear Co.
Main Products: Spur gears, bevel gears, helical gears, gearboxes
About: Arrow Gear Co. is a long-established name among spur gear manufacturers in the United States, serving industrial and aerospace customers since 1947. The company produces high-quality spur gears, helical gears, bevel gears, and complete gear assemblies. Arrow Gear is especially recognized for its ability to meet strict AGMA standards and customer-specific requirements. Its spur gears are commonly used in defense systems, heavy machinery, and transportation equipment. By combining advanced CNC gear cutting with in-house inspection capabilities, Arrow Gear ensures consistent performance and durability. For companies looking for a full-service spur gear manufacturer with decades of experience, Arrow Gear is a trusted partner.
3. Stock Drive Products / Sterling Instrument (SDP/SI)
Main Products: Spur gears, helical gears, metric stock gearing, precision components
About: SDP/SI is one of the most widely recognized spur gear manufacturers in the USA, offering an extensive catalog of standard and custom gearing solutions. The company supplies precision spur gears in both inch and metric sizes, making it a preferred source for automation and engineering projects. SDP/SI’s spur gears are commonly used in robotics, packaging equipment, laboratory instruments, and OEM machinery. In addition to stock products, the company provides custom spur gear manufacturing services tailored to specific torque, speed, and space requirements. With strong inventory availability and engineering support, SDP/SI stands out as a reliable supplier for fast-turn spur gear solutions.
4. Tracey Gear & Precision Shaft
Main Products: Internal & external spur gears, precision shafts
About: Tracey Gear & Precision Shaft is a well-established spur gear manufacturer in the USA, with roots dating back to 1945. The company specializes in both internal and external spur gears, produced to precise customer specifications. Tracey Gear serves a broad range of industries, including industrial equipment, automation, and power transmission. Its manufacturing capabilities include hobbing, shaping, and grinding, ensuring excellent accuracy and surface finish. Known for consistent quality and material versatility, Tracey Gear produces spur gears in steel, stainless steel, bronze, and specialty alloys. For OEMs seeking dependable custom spur gears backed by decades of experience, Tracey Gear is a proven choice.
5. HMC Gears
Main Products: Custom spur gears & pinions up to very large diameters
About: HMC Gears is a leading heavy-duty spur gear manufacturer in the USA, specializing in large-diameter and high-load gear solutions. Based in Indiana, the company is known for producing custom spur gears and pinions for demanding industrial applications. HMC Gears serves industries such as mining, steel production, energy, and material handling. Its spur gears are engineered to withstand extreme torque, shock loads, and harsh operating environments. With advanced machining, heat treatment, and inspection capabilities, HMC ensures compliance with AGMA quality standards. For customers requiring large, robust industrial spur gears, HMC Gears remains a top-tier U.S. manufacturer.
6. Atlas Gear Company
Main Products: Internal and external spur gears, AGMA-rated gears
About: Atlas Gear Company is a precision-focused spur gear manufacturer in the United States, delivering high-quality gearing solutions for OEMs and industrial users. The company produces both internal and external spur gears, manufactured using hobbing, shaping, shaving, and grinding processes. Atlas Gear supports a wide range of sizes and materials, including alloy steel and stainless steel. Its spur gears are commonly used in industrial machinery, automation systems, and mechanical power transmission. With strong engineering support and strict quality control, Atlas Gear is well positioned to handle both standard and custom spur gear projects. The company’s reliability makes it a preferred supplier in the U.S. gear market.
7. Lampin Corporation
Main Products: Spur gear drives, right-angle gear drives, assemblies
About: Lampin Corporation is a specialized spur gear manufacturer in the USA, focusing on precision mechanical components and gear drives. The company produces spur gear drives, gear assemblies, and custom motion solutions for high-tech industries. Lampin’s spur gears are frequently used in aerospace, semiconductor manufacturing, and scientific equipment. Known for compact designs and high precision, Lampin emphasizes performance in space-constrained and accuracy-critical applications. The company combines precision machining with assembly expertise, offering value-added solutions beyond standalone gears. For customers seeking high-performance precision spur gears and integrated assemblies, Lampin Corporation is a strong U.S. manufacturing partner.
8. Van Zeeland Manufacturing
Main Products: Custom stainless steel & precision spur gears
About: Van Zeeland Manufacturing is a respected custom spur gear manufacturer in the USA, known for flexibility and material expertise. The company specializes in made-to-order spur gears, particularly in stainless steel and specialty alloys. Van Zeeland serves customers across industrial machinery, food processing, and equipment manufacturing sectors. Its spur gears are produced with a focus on accuracy, durability, and application-specific requirements. With CNC gear cutting and precision inspection, the company supports both prototype and production orders. For businesses requiring non-standard designs or corrosion-resistant spur gears, Van Zeeland Manufacturing offers reliable custom solutions backed by U.S. production.
9. Diversified Specialties
Main Products: Custom spur gears, precision gear cutting
About: Diversified Specialties is a niche spur gear manufacturer in the United States, focusing on precision and custom gear cutting services. The company manufactures spur gears using modern CNC hobbing and grinding equipment to achieve tight tolerances. Diversified Specialties serves industrial OEMs, automation manufacturers, and specialty equipment builders. Its strength lies in low-to-medium volume production and application-specific designs. By emphasizing quality control and responsive customer service, the company helps clients achieve reliable power transmission performance. For projects that require tailored custom spur gears rather than mass-produced components, Diversified Specialties is a dependable U.S. supplier.
10. Gearmakers USA
Main Products: Spur gears, helical gears, worm gears, spline gears
About: Gearmakers USA is a full-service spur gear manufacturer in the USA, offering custom solutions for industrial and OEM customers. The company produces spur gears, helical gears, worm gears, and splines, supporting a wide range of applications. Gearmakers USA provides design assistance, material sourcing, machining, and finishing under one roof. Its spur gears are commonly used in industrial equipment, power transmission systems, and mechanical assemblies. With a focus on flexibility and engineering collaboration, the company supports both replacement and new-design projects. For customers seeking a responsive and experienced spur gear manufacturer, Gearmakers USA remains a solid U.S. option.
Sanmin Gears
Main Products: Miniature Gears, Sprockets, Remote Control Car Gears, CNC Machined Precision Parts
About: Sanmin Gears is a professional gear and timing belt manufacturer in China, specializing in the production of spur gears, timing belts, timing belt pulleys, and bevel gears. With nearly 20 years of manufacturing and export experience, the company provides reliable power transmission solutions for global industrial markets. Sanmin Gears serves industries such as industrial automation, packaging equipment, 3D printers, electric actuators, and logistics systems. Equipped with advanced CNC gear hobbing and grinding machines, the company supports both standard products and custom gear manufacturing based on drawings or samples. Known for competitive pricing, stable quality, and flexible OEM/ODM services, Sanmin Gears has become a trusted supplier for customers across North America, Europe, and Southeast Asia.
Conclusion
Selecting the right spur gear manufacturers is a key decision that directly affects product reliability, operating efficiency, and long-term maintenance costs. The manufacturers featured in this list represent the best of the U.S. market in 2026, offering precision machining, stable quality control, and strong engineering capabilities.
Across these top spur gear manufacturers, several shared strengths stand out: advanced CNC production, strict adherence to AGMA standards, flexible custom spur gear solutions, and proven experience serving industries such as industrial automation, power transmission, packaging, and OEM machinery. These companies understand that modern buyers value not only gear accuracy, but also responsive support, consistent lead times, and cost-effective solutions.
Why Sanmin Gears Stands Out
While many U.S. manufacturers excel in precision and reliability, Sanmin Gears offers a compelling alternative for buyers seeking a balance of quality, customization, and competitive pricing. With nearly 20 years of experience in spur gears and power transmission components, Sanmin Gears supports a wide range of applications, from automation equipment to 3D printers and packaging systems. Its strong OEM/ODM capabilities, advanced CNC gear processing, and global export experience make it a trusted partner for international sourcing.
For businesses that require flexible order quantities, fast customization, and dependable performance, Sanmin Gears is a manufacturer worth serious consideration.
Compare suppliers, evaluate your project requirements, and don’t hesitate to check specifications and ask for a quote from Sanmin Gears or any manufacturer on this list to find the best fit for your application.
