Nissei Corporation

Internal gearCustom-order gear

Internal gear


This gear has internal teeth which engage with a cylindrical gear.
It enables to design a compact device by sharing the burden among two or more planetary gears.

Catalog download

*Note that you have to enter the customer information for download.


Gear size Module 0.5 to 3
External diameter Up to about φ300 mm
Overall length Up to about 200 mm

*In some cases, we can provide a product exceeding these dimensions, so for details, contact us.

Click here to contact us

Air driver

Internal gear
Examples used

  • Air driver
  • Reducer

Click here for other custom-order gears(Gears based on customer specifications)

  • Spiral bevel gear
  • Zerol bevel gear
  • Hypoid gear
  • HRH gear
  • Spur gear
  • Helical gear

Contact us

Contact us from the Web site