Internal gears are spur gears with teeth on the inside of the gear as opposed to on the outside. They rotate in the same direction as the driving gear (a spur gear of the same module), turning it. They frequently serve as a component of a planetary gear configuration, in which a driving gear (typically, the sun gear) rotates planet gears inside of an internal gear (also known here as an annular gear).
Types Of Planetary Gear Systems
The diagram above illustrates the three types of planetary gear systems. There can be numerous variations in speed ratios and rotational directions created depending on the configurations of which shafts are used as input and output.
Our inch and metric internal gears are available in stainless steel, aluminum, and brass. They are offered in pitches ranging from 96 to 24 and modules 0.5 to 3.
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You May Also Need:
Shafts
Bearings
Couplings
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gears |
| Product Number | S1E62Z-072A080 |
| Product Name | 72DP, 80 Teeth, 20° Pressure Angle, AGMA Q10, 2024-T4 Aluminum Anodized finish internal gear |
| Gear Type | Internal; Rack |
| Number of Teeth | 80 |
| Pressure Angle | 20° |
| Material | Aluminum; 2024-T4 Aluminum |
