Patent ID: 8267636

Claim:
A substrate transport apparatus comprising: a first shaftless rotary motor including a first stator and a first rotor, the first stator being linearly distributed and the first rotor being coupled to a first arm; a second shaftless rotary motor including a second stator and a second rotor, the second stator being linearly distributed and the second rotor being coupled to a second arm, the second arm being connected to the first arm; and a first substrate support being coupled to at least one of the first and second arms; wherein the first stator and second stator are configured so that the first and second arms and the first substrate support are inside the stators when the substrate transport apparatus is in a retracted configuration and a motor output at a connection between the first and second shaftless rotary motors and a respective one of the first and second arms is a resultant force disposed peripheral to the first and second arms.