in wheel motors our next generation drive technology that places motors in automobile wheels this technology improves automobile safety environmental impact and driving comfort a great deal of motor miniaturization research is taking place but motors with sufficient drive performance have been too large and commercialization has yet to be achieved nskzo hub motors achieve driving performance targets while reducing motor size let's look at how this is accomplished nskzo hub motors use two motors both rotating in the same direction for high gear operations when motor bee's rotation directions switches a one-way clutch stops the planetary carrier switching from high to low gear a hub unit bearing with a built in speed reducer delivers the torque to the wheels using a Sun gear pinion gear and ring gear integrated into the hub unit this transmission mechanism makes it possible for small motors to provide a large amount of drive torque and sufficient maximum speed low gear provides faster acceleration than high gear after starting in low gear the motor switches to high gear and accelerates until it reaches maximum speed use of this transmission improves operating efficiency to increase driving range wheel hub motors can be used independent of vehicle body structure so they can be used with evolving drive types such as a TV TV and SPD nsk is continuing to develop products that contribute to the future of automotive technology you