An Internal Spur Gear, similar to an external spur gear, has a cylindrical pitch surface with teeth that are parallel to the axis. However, with an Internal Spur Gear, the teeth are formed on the inner surface of a cylinder. The mating part for an Internal Spur Gear will be an external spur gear.
| Arrow Gear Company | |
|---|---|
| Product Category | Gears |
| Product Name | Internal Spur Gears |
| Gear Type | Spur; Internal |