Abstract: An electric machine includes a rotor press fit to a knurled section of a shaft. The rotor includes a lamination stack having multiple laminations. Each lamination includes a disc defining a center hole. Slots defined in the disc. Each slot is configured to receive a magnet at least partially defining a magnetic pole of the electric machine. The center hole has a circumference including a number of scallops. Each scallop intrudes into the disc. A stator is disposed radially outward of a rotor.

Abstract: A system and method for presenting a scrollable-list interface comprising defining an ordered set of elements which includes elements classified into at least two layers; rendering a set of first layer elements of the ordered set in a navigable interface, the set of first layer elements ordered according to the ordered set; rendering a condensed indicator element associated with at least one element classified in a second layer in the navigable interface, the condensed indicator element ordered within the set of first layer elements according to the ordered set; receiving a user input to the navigable interface; and augmenting a layered representation of the ordered set in the navigable interface, wherein the layered representation is augmented in accordance with the user input.