Video showing a paradoxical and normal gearset Z = 1
Video showing a paradoxical gear set, Z= 1, 2, 3
Video showing a paradoxical and normal gearset, Z = 2
Gear witchcraft!
Two teeth gearset with puzzling behaviour
The paradoxical gear explained
The bad gearset
Involute generation from pulleys and belts
Involute gear mechanical behaviour
Involute and rack
Involute gear animation
Multiteeth gearset
Spur gear train external and internal
Epicyclic gear train (type one)
Video showing a ten teeth helical gear with only one tooth remaining showing the driving path given by the helix, and the driving path given by a small slice of the same gear (so equivalent to a spur gear).