A hub drive has a tubular housing suspended in a vehicle, and a motor in
one, inboard end of the housing, and a gearbox in the other end. A hub is
driven by the gearbox and is journalled on the housing. A gallery is
defined between the motor and housing to receive lubricant from an
external connector to cool the motor before delivery via a passage to a
rotor of the motor, and thence to the gearbox to lubricate the gearbox.
The drive is dismantleable without removal of the vehicle wheel, from the
open ends of the housing. A gear change mechanism permits minimisation of
the motor while still providing a wide range of torque and speed
capability.