Steel Internal Gears

KHK USA Inc., a factory-owned distributor of the KHK® brand of metric gears, is pleased to announce the availability of its Steel Internal Gears (SI), expanding its line of precision gear solutions for demanding industrial applications.

Manufactured from S45C carbon steel, KHK SI internal gears are designed to deliver exceptional strength and durability.  With a precision grade of JIS N8, these gears ensure smooth and reliable operation, making them an excellent choice for planetary gear drives, robotics, automation equipment, and other high-performance machinery.

The SI internal gears are offered in a wide range of modules from 0.5 to 3, and tooth counts from 50 to 200, allowing engineers and designers to select the optimal size for their specific requirements. Their internal gear design enables compact power transmission solutions and is fully compatible with any spur gear of the same module, providing flexibility and ease of integration into new or existing assemblies.

These steel internal gears are commonly used in planetary gear drives, robotics, precision machinery, and other industrial equipment that require compact, high-torque transmission. Product specifications include modules, number of teeth, pitch diameter, face width, outer diameter, and a standard pressure angle of 20 degrees.