KHK USA specializes in high-temperature racks.

For over 90 years Kohara Gear Industry (KHK) has engaged in the production of high-temperature racks. The dedication to this product has resulted in sourcing world-class equipment and training of personnel in world-class production methods.

High-temperature gears are manufactured from materials and with heat treatments that maintain dimensional stability and mechanical properties at elevated operating temperatures. Alloy steels and special lubricant-compatible surfaces ensure reliable operation.

Kohara Gear Industry is both ISO 9001:2015 and ISO 14001:2015 certified. Every high-temperature rack produced by KHK undergoes rigorous quality control including material analysis, dimensional verification, and performance testing.

With the largest selection of standardized metric gears in North America — over 27,000 configurations — KHK USA’s team of professionals look forward to assisting you with all your high-temperature racks needs.

Understanding Metric Gears

Metric gears use the module system (designated by “m”) to define tooth size, as opposed to the diametral pitch (DP) system common in inch-based gearing. Module equals the pitch diameter divided by the number of teeth, expressed in millimeters. KHK USA provides the most comprehensive selection of stock metric gears in North America, making it easy to source high-temperature racks for any application.

Complete Product Range

In addition to high-temperature racks, KHK USA offers the full range of metric gear products: spur gears, helical gears, internal gears, miter gears, bevel gears, screw gears, inch gears, worm gears, gearboxes, CP racks & pinions, racks, and other products.

Why KHK USA for high-temperature racks

Because we are the largest and best source for high-temperature racks, we provide free resources including How To Select Gears, free gear calculation software, and free gear drafting software.

KHK’s high-temperature racks are available in a wide range of modules from 0.5 to 10, covering fine pitch, medium pitch, and coarse pitch applications.