Planetary Gear Set Trainer

The ring gear (the outer most gear), 3 planet gears (green gears) that are housed by a carrier assembly (white color) and a sun gear (the yellow gear in the center of the gear set). The Planetary Gear Set Trainer is a simple planetary gear assembly that consists of 3 primary components. It allows 7 different operational modes.

Main Features:
Easy student visualization of planetary operation.
Seven operational modes can be demonstrated.
Sun, ring gear and carrier can be held, driven or allowed to react.
Optimal size for classroom.
Table top portability. 

Dimensions: Height: 29 Width: 22.5 Depth: 7.1 (73.7 x 57.1 x 18.1 cm)
Weight: 20 lb (9 kg).