Traditionally metric means a measurement method based on meter, but when used in sentences as metric gears, it means the sizes of gears are based on the pitch (size) in the unit called module (m). When the unit of Module is used, the pitch can be computed as the multiple of π. For example, if the module is 2, the pitch is 6.2832mm, and if the module is 3, the pitch is 9.4248mm. The mo... (read more)

What makes a gear RoHS or REACH compliant
under U.S. and EU regulations? (read more)

To design gears, it is necessary to have technical knowledge of gears as a mechanical element. This is true even when using already designed standard gears.
Among the required knowledge are various formulas for caluculating gear strengths and sizes, knowledge regarding the gear types and specialized vocabulary, gear train's speed ratios and rotational directions, teeth forms and tee... (read more)

KHK USA has relaunched its website to introduce new products, modernize the user interface, and offer additional functionality (read more)

KHK USA Inc. is Factory Direct with our manufacturer in Japan and offers a 3 Day Factory Shipment (without paying customs charges) for just a flat $25.00 expedite fee. (read more)

To design gears, it is necessary to have technical knowledge of gears as mechanical element. This is true even when using already designed standard gears.

Among the required knowledge are various formulas for calculating gear strengths and sizes, knowledge regarding the gear types and specialized vocabulary, gear train's speed ratios and rotational directions, teeth forms and teet... (read more)

KHK Gears (Kohara Gear Industry) is a leading manufacturer of stock gears in JAPAN handling production and distribution of a large variety of stock gears.

While many gear manufacturers make gears only after receiving orders, our strength is having stock for quick delivery. By offering secondary operations on stock gears you have the convenience of being able to buy even one piece... (read more)

We introduce many gear applications on this page. In order to effectively use gears in mechanical designs, it is necessary to have ideas and experiences besides having the knowledge of strength and size calculations and understanding of mechanical drawings. (read more)

Please click here to access the FREE Gear Calculation Software and FREE Gear Drafting Software programs created by Kohara Gear Industry (KHK). With a few known parameters, these programs will help you design the best gear geometry for your unique application. Please contact us at 516-248-3850, to discuss the production of your design. (read more)

Upload your detailed drawing, 3D model, or description (read more)

KHK USA Inc offers 200 styles of stock gearing products with over 26,000 unique configurations available. KHK's product offering includes metric spur gears, metric helical gears, metric internal ring gears, straight and helical metric gear racks, metric circular pitch (CP) racks and pinions, straight, spiral, zerol & hypoid tooth metric bevel gears, straight, spiral, & zerol toot... (read more)