What does a planetary gearbox do?

A planetary gearbox is a gearbox with the input shaft and the output shaft aligned. A planetary gearbox is used to transfer the largest torque in the most compact form (known as torque density).

When it comes to torque and speed, a planetary gear motor is more effective in high speed, high torque applications. As mentioned above, the multiple contact points between the gears of a planetary gear head are the reason for its effectiveness in these conditions.

In the planetary gear system, the axes of the gears are usually parallel to each other and are concentric. Disadvantages include high bearing load, inaccessibility, and design complexity. However, the advantages of planetary gears over parallel axis gears are compact size, higher efficiency, and low noise level.