Gears Suppliers in United States

A global Tier-1 supplier of driveline and drivetrain systems, including axles, driveshafts, and differentials. AAM produces high-precision gears and integrated e-drive systems for passenger cars, trucks, and EVs. With IATF 16949 certification, its facilities deliver high-volume components with advanced NVH optimization. AAM’s engineering and global manufacturing make it a key partner for OEMs in traditional and electrified powertrains.

U.S. manufacturer of differential bevel gears, pinions, and shafts for automotive axles and heavy equipment. Great Lakes Industry (GLI) supplies gear sets for Tier-1 axle and transmission producers, specializing in bevel and hypoid gear tooth grinding. IATF 16949-certified, GLI leverages advanced CNC Gleason systems for high-volume production while maintaining fine quality. Markets include automotive axles, agricultural machinery drivelines, and defense vehicle gearboxes. The company’s agile approach, combined with over 30 years of gear expertise, make it a preferred supplier for difficult-to-manufacture bevel gearsets.

High-precision fine-pitch gear manufacturer specializing in miniature gearing for aerospace, medical devices, and performance automotive applications. ABA-PGT (formerly Sterling Instrument’s P.G.T. division) produces instrument-size spur and helical gears, gear racks, and pinion wire with exceptionally tight tolerances. Their Florida facility is ISO 9001 and AS9100 certified, employing proprietary processes to achieve excellent surface finishes and accuracy in small gears. In the automotive realm, ABA-PGT contributes to specialized racing and electric steering gear programs requiring micro-gears.

A family-operated precision gear manufacturer in Wisconsin, serving OEM customers with custom spur, helical, and worm gears since 1975. Precision Gears, Inc. machines steel, bronze, and plastic gears from 0.5” to 16” in diameter in lot sizes from dozens to thousands, for applications including all-terrain vehicles, motorcycles, gearmotors, and appliances. The company is ISO 9001:2015 certified and focuses on continuous improvement and employee expertise. Its modern CNC gear hobbers and thread grinders enable efficient production of tight-tolerance gears at competitive cost for both domestic and international clients.

Family-owned American gear job shop specializing in custom spur, helical, and bevel gears for automotive racing, military, and industrial applications. B&R offers quick-turn manufacturing of precision gears (up to AGMA Q15) in small batches. Known for supporting NASCAR and NHRA teams with high-performance transmission and rear-end gears, the ISO 9001-certified shop combines modern CNC machining with skilled craftsmanship honed since 1974.

U.S. manufacturer of precision custom gears and gear shafts since 1969. Bendon Gear & Machine produces spur, helical, worm, and bevel gears in small-to-medium batches for automotive aftermarket, machinery, and gearboxes. Known for quick turnaround and personal service, Bendon Gear is ISO 9001 certified and employs skilled machinists to fabricate gears up to 36” diameter. It supplies performance car builders and industrial clients with high-quality gearing, including hardened and ground gears made to print.

Midwestern U.S. supplier of production gears and sprockets for automotive and industrial markets. Atlas Gear Company offers high-volume manufacturing of spur, helical, and bevel gears, primarily for powertrain and engine timing applications. Its capabilities include fully automated hobbing, shaping, and gear grinding, supported by an IATF 16949-certified quality system. Atlas Gear’s 50+ years in business and modern Detroit-area facility enable it to serve Tier-1 automotive customers with reliable delivery and competitive cost.

Employee-owned U.S. gear manufacturer with multiple divisions (Nixon Gear, Oliver Gear, and Gear Motions Buffalo). Gear Motions produces precision ground and cut gears – spur, helical, bevel, and worm – for on-road trucks, medical devices, and industrial machinery. Capabilities include carburizing, grinding to AGMA 12+, and assembly. With ~150 employees across facilities in New York, Gear Motions is AS9100 and ISO 9001 certified and known for custom gearing solutions and on-time delivery. It serves as a trusted source for mid-volume OEM gears as well as aftermarket and repair parts, continuously operating since the 1960s.

A U.S. leader in precision gearing for off-highway and industrial vehicles. Columbia Gear (part of Owen Industries) manufactures transmission gears, differential bevel gear sets, and shafts for agriculture, construction, and mining equipment OEMs. Operating from a 250,000 sq.ft. plant in Minnesota, Columbia Gear combines advanced heat treatment and grinding technology to achieve high AGMA quality levels. Certified to IATF 16949 and ISO 14001, it delivers large-volume orders of carburized and ground gears with reliable quality for heavy-duty drivetrains.

Established in 1958, Brelie Gear is a Milwaukee-based custom gear maker offering cut and ground gears in small to mid volumes. It machines spur, helical, bevel and worm gears for machinery, print presses, and specialty vehicles, with a niche in precision ground helical gears for racing and automation. Family-owned and ISO 9001:2015 certified, Brelie’s team and equipment (including Hofler grinders and Barber-Colman hobbers) allow quick turnaround of high-quality gears up to 18” in diameter. Clients appreciate Brelie’s personalized service for replacement and prototype gear needs.

Globally recognized precision gear maker for aerospace, medical, and performance automotive sectors. Forest City Gear is renowned for achieving extremely high quality (AGMA Q15) on fine-pitch gears, gear racks, and splines. Its capabilities include carburized and ground gears as small as 0.5” diameter for helicopter and racing transmissions. With AS9100D and ISO 9001 certifications (and a TS16949 legacy for automotive projects), this family-owned company combines over 65 years of expertise with continuous investment in cutting-edge gear grinders and metrology to deliver perfect results for the most demanding applications.

A custom gear job shop in the Chicago area specializing in emergency breakdown replacements and prototypes. Circle Gear & Machine produces one-off and small batch spur, helical, worm and bevel gears up to 48” in diameter, serving steel mills, racing teams, and industrial users since 1951. The company is known for rapid turnaround (“Rush Gear” service) and comprehensive in-house machining (including shaping, hobbing, CNC milling, and grinding). ISO 9001-certified, Circle Gear tackles complex reverse-engineering of obsolete or high-performance gears with craftsmanship and speed.

A leading U.S. producer of spiral bevel gears, helical gears, and pinions for aerospace, automotive and industrial powertrains since 1947. Arrow Gear’s 140,000 sq.ft. facility near Chicago is AS9100 and ISO/IATF certified, offering complete design-to-build services. In automotive, Arrow Gear supplies high-precision ring & pinion sets and transmission gears for performance and luxury vehicle programs, recognized for outstanding quality and heat-treat expertise.

A third-generation family business in New Jersey specializing in custom gear cutting since 1946. Commercial Gear & Sprocket produces spur gears, helical gears, sprockets, and splined shafts in low-to-medium volumes for trucks, marine, and general machinery. The company’s nimble 40-person team provides quick turnaround on made-to-order gears up to 36” in diameter. With an ISO 9001 quality program, they serve both aftermarket automotive (e.g. vintage car gearsets) and industrial needs, offering personal service and engineering support for tricky gearing problems.

A U.S. manufacturer of precision gears and driveline components for off-highway, automotive, and industrial applications. Schafer Industries specializes in spiral bevel gears, helical gears, and custom axles for agriculture, construction, and recreational vehicles. With IATF 16949 and ISO 9001 certifications, its facilities deliver high-volume, high-quality components. Schafer’s in-house heat treatment and advanced metrology ensure durability and precision for OEM customers.

Long-established gear manufacturer (since 1920) specializing in large custom gearing for industrial and vintage automotive restoration. Franklin Machine & Gear produces spur, helical, bevel gears and sprockets – from a few inches up to 6 feet in diameter – often as one-off or small batch orders. With in-house engineering, welding, and heat treat partners, Franklin can reverse-engineer old gears or create new ones from drawings. Markets range from antique car gearsets to crane and press gears. The company employs an ISO-compliant quality system and prides itself on tackling difficult, oversized gear projects others avoid.

A global power management company producing automotive and industrial components, including differentials, transmissions, and superchargers. Eaton’s Vehicle Group supplies locking and limited-slip differentials, torque control products, and performance gears for OEMs and aftermarket. With IATF 16949 certification, its plants deliver high-volume, precision-engineered driveline solutions, known for durability and innovation in traction and performance applications.

Designer and manufacturer of high-performance gearboxes and gearing solutions for industrial and defense applications, with select automotive crossover (electric drivetrains). Cincinnati Gearing Systems (CGS) provides custom gear drives, parallel shaft and epicyclic gearboxes and loose gearing, leveraging a rich legacy from the “Machine Tool City.” IATF 16949 and ISO 9001 certified, CGS has the engineering and testing facilities to develop quiet, efficient gears meeting automotive NVH demands. It has supplied specialized reduction gears for hybrid buses and electric trucks, applying its precision aerospace gear know-how to new mobility markets.

A global leader in driveline, sealing, and thermal-management technologies. Dana produces axles, driveshafts, differentials, and EV driveline systems for light, commercial, and off-highway vehicles. With over 120 years of expertise, its IATF 16949-certified facilities deliver high-volume, durable components. Dana’s Spicer brand is renowned for rugged axles and gears, serving OEMs and aftermarket with advanced engineering and global supply capabilities.