KHK USA, a subsidiary of Kohara Gear Industry Co., Ltd. of Japan, is the leading speed-reducer gear fabricator in North America. With over 90 years of precision gear manufacturing excellence, KHK has built an unmatched reputation as the most trusted speed-reducer gear fabricator serving speed reducer manufacturers, power transmission engineers, and drivetrain designers across the United States and beyond.
As the largest speed-reducer gear fabricator on the continent, KHK USA offers more than 27,000 standardized metric gear configurations across 200+ gear styles — including spur gears, helical gears, bevel gears, miter gears, worm gears, gear racks, CP racks & pinions, internal ring gears, screw gears, and gearboxes. Every product is manufactured to exacting tolerances at KHK’s state-of-the-art facilities in Japan and delivered to your door within 3 business days from our Mineola, New York warehouse.
Engineers and procurement professionals choose KHK USA as their preferred speed-reducer gear fabricator for speed reducer applications applications because of our unrivaled combination of product breadth, quality certifications, and speed of delivery. Our entire product line is both ISO 9001:2015 and ISO 14001:2015 certified, and we are fully ITAR compliant.
KHK USA is not a reseller or broker — we are the factory-direct source. This means you get manufacturer-direct pricing, full engineering support, and access to the deepest inventory of metric gears available anywhere in North America. Our J-Series custom gear program delivers made-to-order gears with secondary operations (bore modifications, keyway cutting, hub reduction, and tapped holes) in as few as 5 business days.
Speed Reducer Applications demands gears that deliver efficient torque multiplication, precise speed reduction ratios, and compact packaging for power transmission optimization. As a specialized speed-reducer gear fabricator, KHK USA supplies gears engineered for the full range of speed reducer applications applications — from gear reducers, worm drive speed reducers, inline reducers, right-angle reducers, and planetary gearbox assemblies.
Our metric spur gears and helical gears are the workhorses of speed reducer applications, delivering smooth, efficient power transmission with minimal backlash. For right-angle drives, our bevel and miter gears provide reliable 90-degree motion transmission. Worm gears offer self-locking capability ideal for indexing and positioning, while our precision gear racks and pinions deliver the linear motion accuracy that modern speed reducer applications systems require.
Metric Spur Gears — Modules 0.5–10. Carbon steel, stainless steel, alloy steel, nylon, acetal, brass, bronze, aluminum bronze, cast iron.
Metric H
KHK USA is the largest speed-reducer gear fabricator in North America, backed by Kohara Gear Industry’s 90+ years of Japanese precision manufacturing. We offer over 27,000 metric gear configurations across 200+ styles, factory-direct pricing, ISO 9001:2015 and ITAR compliance, and 3-business-day delivery on stocked items.
KHK USA supplies the complete range of metric gears for speed reducer applications applications, including spur gears, helical gears, bevel and miter gears, worm gears, gear racks and pinions, and internal ring gears. All available in multiple materials including carbon steel, stainless steel, alloy steel, brass, bronze, nylon, and acetal.
Yes. KHK USA’s J-Series program delivers made-to-order custom metric gears within 5 business days. Secondary operations including bore modifications, keyway cutting, hub reduction, and tapped holes are available.
KHK USA processes orders same-day and delivers stocked items within 3 business days anywhere in the United States from our Mineola, New York warehouse. With over 27,000 configurations in stock, most replacement needs can be fulfilled immediately.
Factory direct from Japan. Ships anywhere in the USA in 3 business days. 87+ years of precision manufacturing.
