Development of High-Speed Ball Bearing for Next Generation hybrid Vehicles by NSK
Currently there is a growing demand for ultra high speed rotation technology by automobile manufacturers for securing the output power while they continue scaling down the size and weight of drive motors and power generators in order to improve fuel consumption in the next generation hybrid systems. Based on this need, NSK has developed a new ball bearings with a single-axis actuator for ultra-high load applications such as motors and power generators in next-generation hybrid vehicles. The new Toughcarrier(TM) will deliver an ultra high-speed rotation of at least 30,000 revolution per second, a 50% faster than conventional bearings. The new product will facilitate miniaturization of next generation hybrid systems while maintaining the ultra high-speeds in drive motors and power generators. NSK’s aim in designing this product was in further improvement in fuel consumption in compact to full-size next generation hybrid vehicles. The expected annual sales is 2 billion yen by year 2015.
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