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What are Gears?
Gears are mechanical devices that rotate and transmit power and torque to other rotating elements, typically other gears, through the use of teeth or cogs. There are various types of gears, generally having the same purpose of changing the direction of motion, the speed, and/or the transmitted torque. Change gears are interchangeable gears used on machine tools to change speeds. Gear blanks are semi-finished materials from which gears are manufactured. Gear racks are straight gears that are typically driven by mating pinions. Helical and spur gears are closely related except spur gears have straight teeth while the teeth on helical gears are angled allowing for a higher torque transmission for a given size. Miter, bevel, crown, and hypoid gears are similar in that they have angled faces. Pinion gears are typically the smaller, higher speed elements and are used to drive the other larger, slower gears. Worm gear systems use rotating pinion gears to drive mating gears along their perimeters.
 

Gears Suppliers

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Precipart

Thomas Verified
ico-map Farmingdale, NY Custom Manufacturer* $100 - 249.9 Mil 1950 200-499

Custom manufacturer of precision metric angle gears. Types include spur, helical, worm, cluster, internal, shaft, straight and spiral bevel, face, sector and planetary gears. Stainless steel, carbon steel, bronze, brass, aluminum, Delrin®, nylon and other plastic materials used. Available with 6 mm to 102 mm OD with 14.5 degree to 30 degree pressure angle. Capabilities include CNC milling and turning. Prototype to high volume production offered. Serves the medical device, aerospace and defense and industrial industries. Lean manufacturing capable. ISO 9001 and ISO 13485 (medical standard) certified. Meets AS9100 standards. ITAR registered. Six Sigma and NADCAP certified. RoHS and REACH compliant. On-time delivery.

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Atlanta Gear Works

Thomas Verified
ico-map Dawsonville, GA Service Company*, Custom Manufacturer $5 - 9.9 Mil 1988 10-49

Custom manufacturer of bevel, double helical, hypoid, internal, planetary, pinion, spur, rack and worm gears. Made from alloy steel, carbon steel, stainless steel, aluminum, brass, bronze, ductile/cast iron, nylon, plastic and phenolic. Available up to 96 in. dia. Gear tooth forms include involute and straight. Gear cutting methods such as broaching, hobbing, EDM, milling and shaping provided. Gear forming methods are centrifugal, die and sand casting and forging. Serves the chemical, construction, heavy equipment, nuclear, rubber processing, pulp and paper, wastewater and other industries. 24/7 service available.

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ASCO Sintering Co.

Thomas Verified
ico-map Commerce, CA Custom Manufacturer* $5 - 9.9 Mil 1971 10-49

ISO 9001 certified custom manufacturer of precision powdered metal gears including automotive transmission planetary gears. Made of high impact copper steel and available in 7.7 g/cu. cm density. Capabilities include machining, assembly, warm compacting, tool designing, sintering, process control, heat treatment, vibratory deburring, non-destructive testing and plating. Meets AIAG standards. REACH and RoHS compliant.

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BDI

Thomas Verified
ico-map Locations Distributor* $250 Mil. and over 1935 1000+

Distributor of metallic & non-metallic gears, gear assemblies & gear racks. Rack & pinion gear racks. Gear components include blanks, reducers, splines, sprockets & worms. Helical, bevel, worm, spur, mitre, spiral bevel & change gears.

Brands+

Berg, Browning, Delroyd, Dodge, Gates, KEB, Kistler-Morse, Linn, Lufkin, Martin, P.T. International, Power Plastics, PowerDrive, Radicon, Rexnord, Santasalo, Schneeberger, Sew Eurodrive, Siemens, Sumitomo, Van Zeeland, Voith, Winsmith

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Cleveland Gear Co.

Thomas Verified
ico-map Cleveland, OH Manufacturer*, Service Company $10 - 24.9 Mil 1912 200-499

Custom manufacturer of gears including steel gears, worm gears, tractor & truck gears & special gears. Single, double, triple & quadruple reduction available. 19 Sizes in each type & power range from 5 to 6000 HP available. Output torque up to 4,200,000 in.-lbs. Ratio range from 1.25:1 to 710:1. Accessories available include back stops, torque arm mounting, motor brackets & lubrication system controls. Through hardened & case hardened/ground gearing, heavy duty fabricated steel housings & single/multiple speed designs available.

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Tracey Gear & Precision Shaft

Thomas Verified
ico-map Pawtucket, RI Custom Manufacturer*, Manufacturer $1 - 4.9 Mil 1945 10-49

Manufacturer of standard and custom circular gears made from steel, stainless steel, bronze, aluminum, fiber and nylon. Various types include bevel, angular, cluster, spur, helical, sun, planetary, rack and worm gears. British standard, metric, straight and involute gear tooth forms available. Capabilities include boring, broaching, drilling, turning, forming, knurling, reaming, milling, gear cutting, threading, thread grinding and tapping. Additional services such as heat treating, plating, passivation, anodizing, inspection and coating are provided. Low to medium volume production runs offered. Serves the aerospace, automotive, HVAC, marine, mining, nuclear, semiconductor, packaging and transportation industries. Most items available in stock. Made in the USA.

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American Gear, Inc.

Thomas Verified
ico-map Prophetstown, IL Custom Manufacturer* $1 - 4.9 Mil 1990 10-49

ISO 9001:2008 certified manufacturer of fine to medium pitch small gears. Products include spur gears, helical gears, bevel gears, miter gears, timing pulleys, worm gears, sector gears, segmented gears, screw machine parts, ratchets, sprockets and ladder chain sprockets in standard or metric sizes. Prototypes and assemblies are also available. Gears can be manufactured up to 6 in. dia. with diametric pitches ranging from 12 to 200. Available in all types of machinable materials such as plain carbon, alloy and stainless steels, brass or bronze, aluminum, phenolic, nylon and Delrin®.

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American Precision Gear Co., Inc.

Thomas Verified
ico-map Foster City, CA Custom Manufacturer* $10 - 24.9 Mil 1956 10-49

ISO 9001:2000 certified custom manufacturer of precision special gears. Types include spur, ring, miniature, helical, bevel, face, worm, pinion, pump, backlash, and cluster gears. Made from aluminum, bronze, cast iron, steel, manganese steel, stainless steel, AVC, Delrin®, and nylon. Available in 0.05 to 48 in. sizes with 2 to 250+ pitch diameter and tolerances up to 0.0001 in. CNC grinding, fabrication, honing, broaching, and other secondary services available. Serves aerospace, defense, military, instrumentation, oil and gas, technology, and semiconductor industries. ITAR and JCP registered. Meets ANSI and AGMA standards. Kanban and JIT delivery available.

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Dalton Gear Co.

Thomas Verified
ico-map Minneapolis, MN Manufacturer*, Custom Manufacturer $10 - 24.9 Mil 1955 10-49

Custom manufacturer of overload safety precision gears. Types are bevel and miter, spur, worm, rack, and helical gears. Available in various pitch diameters and faces.

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Allied Sinterings, Inc.

Thomas Verified
ico-map Danbury, CT Custom Manufacturer*, Manufacturer, Service Company $5 - 9.9 Mil 1959 10-49

ISO 9001 certified custom manufacturer of gears including special & powdered metal gears. Materials include stainless steel, copper & nickel steel & brass. Capabilities include milling, machining, heat treating, grinding, drilling, tapping, reaming, plating & copper, oil & plastic impregnation. JIT delivery.

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Omni Gear & Machine Corp.

Thomas Verified
ico-map Joliet, IL Custom Manufacturer*, Manufacturer, Service Company $1 - 4.9 Mil 1988 10-49

Custom manufacturer of spur, helical, cluster, bevel, change, crown, pinion, planetary, rack, timing, worm, and internal gears. Made from steel, stainless steel, carbon steel, aluminum, brass, bronze, ductile iron, gray cast iron, nylon, phenolic, polycarbonate, polyester, and acetal. Available up to 45 degree helix angle. Capabilities include cutting, grinding, and hobbing. Heat treatment methods such as carburizing, flame, induction, and nitriding used. Prototype and low to high volume production runs available. Serves the machine tool, machinery, packaging, converting, paper, pulp, and pump industries.

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Cook-Leitch Inc.

Thomas Verified
ico-map Rocky River, OH Manufacturers' Rep* 1964

Mfr's rep. of helical, sector and multi-level powdered metal gears. Serves the appliance, aerospace, defense, automotive, agricultural, power equipment, hydraulic, electromechanical, sensor and recreation industries. Made in the USA.

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Circle Gear & Machine Co., Inc.

Thomas Verified
ico-map Cicero, IL Custom Manufacturer* $5 - 9.9 Mil 1951 10-49

Full service custom manufacturer of gears. Types of gears include bevel & spiral bevel gears, helical gears, planetary gears, rack/pinion gears, spline gears, sprocket gears, spur gears, worm gears, herringbone (double helical) gears, conventional/external gears & internal gears. Materials used include aluminum, alloy steel, carbon steel, brass, bronze, gray cast iron, ductile iron & stainless steel & non-metals including nylon, plastic, acetal, Delrin®, phenolic, polyester & polycarbonate. Gears come with flat & hex shaft feature. JIT delivery available.

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Machinists, Inc.

Thomas Verified
ico-map Seattle, WA Custom Manufacturer* $10 - 24.9 Mil 1942 200-499

Custom manufacturer of gears and gearboxes. Capable of cutting gears up to 250 in. in diameter and grinding gears to 102 in. Utilizes lathes, cylindrical grinders, and multi-axis verical boring mills. Suitable for the power generation, mining, timber products, wind, construction, oil and gas, steel, marine, and aerospace industries.

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Ascent Precision Gear Corp.

Thomas Verified
ico-map Jasper, FL Manufacturer* Under $1 Mil 1998 1-9

Custom manufacturer of gears made from aluminum, brass, bronze, stainless steel & steel. Types of gears include spur, hubless spur, clamp hub spur, pin hub spur, anti-backlash, compound, helical, spline, worm, pinion, shaft, sector, timing pulley, sprocket & metric gears. Specifications include 1/8 in. to 16 in. gear dia., 32 D.P. to 120 D.P. size, 18 to 300 teeth & 0.2 to 0.8 module. Applications include aircraft, aerospace, defense, automotive, instrumentation, marine, medical, optics & robotic industries. Meets MIL-I-45208A Spec.

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American Crane & Equipment Corp.

Thomas Verified
ico-map Douglassville, PA Manufacturer*, Distributor $25 - 49.9 Mil 1972 100-199

Distributor of pinion, double, ring, lift wheel, spacer sprocket, internal, output, intermediate, high speed cluster, input, drive, face, worm, and load gears. Meets ASME and AWS standards.

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Emco Industrial Plastics, Inc.

Thomas Verified
ico-map Cedar Grove, NJ Distributor*, Custom Manufacturer $10 - 24.9 Mil 1983 50-99

Manufacturer of standard and custom gears made from glass polyester, nylon, Nylatron®, acetal and Vespel® materials. Features include generate low smoke, resistant to flame, wear, arc, corrosion and abrasion. Secondary services such as cutting, welding, forming, milling, bonding, drilling, stamping and prototyping are offered. Gears are also distributed. Serves the food, beverage, OEM, pharmaceutical, medical, aerospace, defense and chemical processing industries. ITAR registered.

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Fairchild Auto-Mated Parts

Thomas Verified
ico-map Winsted, CT Custom Manufacturer* $1 - 4.9 Mil 1944 10-49

Custom manufacturer of gears made from aerospace, cosmetics, dental, laboratory, optical, packaging, pneumatics, pharmaceutical and medical industries. Made from aluminum, beryllium, brass, carbide, copper, Inconel®, Monel®, niobium, acetal, polycarbonate, phenolic, nylon and zinc materials. Available in 0.060 to 4 in. dia. and 20 in. length. Rush and emergency services are available. Prototypes, low to high and short to long run production volumes are offered. AS compliant.

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Wyandotte Industries, Inc.

Thomas Verified
ico-map Wyandotte, MI Custom Manufacturer* $5 - 9.9 Mil 1959 50-99

Custom manufacturer of gears. Alloy steel, aluminum, brass, bronze alloys, carbon steel, copper and stainless steel materials used. Capabilities include screw machining services like boring, deburring, drilling, grinding, knurling, milling, polishing, reaming, and turning. Aerospace, agriculture, construction, automotive, electronic, electrical, medical, military and other industries served. NADCAP, ISO 9001:2008, AS9100, and TS 16949:2009 certified.

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Motion Industries, Inc.

ico-map Locations Distributor* $250 Mil. and over 1946 1000+

Distributor of gears made from acetal, nylon, cast iron, bronze, brass, steel and stainless steel materials. Types include bevel, miter, helical, worm, pinion, spur and change. Gear racks are offered. Available in 14.5 or 20 degrees pressure angle. Features of some gears are fine pitch, internal or external tooth and heat treated. Serves the automotive, chemical, food, beverage, pulp, paper, lumber, wood, cement, iron, steel, rubber, plastic, oil and gas extraction industries. Some gears meet ANSI standards.

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LCS Company

Thomas Verified
ico-map Saint Paul, MN Custom Manufacturer* $5 - 9.9 Mil 1959 10-49

ISO 9001: 2008 certified. Custom manufacturer of gears. Meets Mil-45208 Spec and AS 9001 and AS 9003 standards. Kanban and JIT delivery.

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Wilke Enginuity, Inc.

Thomas Verified
ico-map Hanover, PA Custom Manufacturer*, Manufacturer $5 - 9.9 Mil 1987 10-49

ISO 9001:2015 certified. custom manufacturer of gears. Materials used include acrylics, aluminum, carbon steel, cloth, composites, plastics, rubber, stainless steel, galvanized steel, copper, bronze and wood. Other products fabricated include couplers, crankshafts, flywheels, housings, hubs, castings, assemblies, pins, plates, press brakes, rollers, shafts, spacers and weldments. CNC laser cutting, machining, turning, routing, forming, fabrication and engineering services are available. Services also include bending, milling, turning, honing, sawing, etching, engraving, stamping, grinding, drilling, heat treating, assembly, welding, coating, plating, finishing and prototyping. Kanban delivery.

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Advanced Industrial, Inc.

Thomas Verified
ico-map Mooresville, NC Custom Manufacturer* $5 - 9.9 Mil 1995 10-49

Custom manufacturer of metric and imperial plastic and aluminum gears. Types include spur and rack gears. Works with plastics such as PEEK, acetal, nylon, PTFE, Ertalyte®, polysulfone, Torlon®, Celazole®, polycarbonate, Ultem® and polyimides. Prototype and low to high volume production offered with maximum 5,000 units. Serves the analytical instrumentation, sample preparation, life sciences, marine, food processing and material handling industries.

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Wisconsin Oven Corp.

Thomas Verified
ico-map East Troy, WI Manufacturer*, Distributor $1 - 4.9 Mil 1973 100-199

Distributor of spur gears for aerospace, automotive, finishing, foundry, composite, energy, heat treating, laboratory, military and pharmaceutical industries. Available in 1/2 and 1 in. bore size with 15 or 19 number of tooth. Secondary services such as replacement parts installation and maintenance are also offered.

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Trelleborg Sealing Solutions

Thomas Verified
ico-map Minneapolis, MN Custom Manufacturer*, Manufacturer 1945 1000+

Manufacturer of low friction and wear and damping resistant gears. Made from thermoplastic materials.

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