An internal gear is a hollow gear
with teeth cut on its internal surface. The teeth in such a gear project
inwards instead of outwards from the rim.
Materials Used
There is a variety of materials being used to manufacture internal
gears depending on the end application. Some of the popularly used
materials are :
- Plastic
- Aluminum alloys
- Cast iron
- Stainless steel
The teeth in such gears can either be spur or helical. The internal
teeth have a concave shape with a base thicker than that of an external
gear. The convex shape and a strong base help in making the teeth
stronger and also creating less noise.
Advantages of Internal Gear
- The gears are specially designed to accommodate a wide range of
equipment.
- The gears are cost-effective and ideal for a broad range of
light-duty applications.
- The non-binding tooth design ensures smooth and quiet operation.
Use of Internal Gears
- Light duty applications
- Rollers
- Indexing
Internal Gear
