NSK developed electric car gearbox with tapered roller bearing NSK LCube 'Ⅱ'

Japanese seiko corporation, the successful development of electric automobile gearbox with tapered roller bearing NSK LCube 'Ⅱ'. Use in thin oil harsh environment, through special processing of rolling body, this product can improve the durability of the bearing and sintering performance. On this basis, can make contribution to improve the power consumption of electric cars. NSK is expected this product 2030 annual sales target for 4 billion yen. The strengthening of the background of the development in recent years, the fuel consumption control and under the background of the depletion of fossil fuels, improve the vehicle fuel consumption has grown up in global demand, the development of the electric car is going very fast. In the field of transmission, to improve the electric power consumption, mainly for lubricating oil of low viscosity oil and less quantitative. , therefore, to use in the gearbox of the tapered roller bearing is put forward more stringent requirements, at the same time, the oil film bearing surface damage caused by the bad and sintering the solution of the problem has become particularly important. With predictable each big brand manufacturers of electric car development JiaSuHua, in ascending transmission efficiency of this research topic, develop and provide high reliability of the bearing is more integrality. The characteristics of product development, 1) Durability and resistance to sintering in tapered roller rolling surface and the improvement of the performance of the head, the formation of tiny voids can storage, better make contact surface oil film stability, prevent damage and wear surface, compared to the current products can achieve more than 8 times and durability and resistance to sintering. （ 2) Low friction of low-speed domain the new products in the field of oil storage performance at low speed ( State of the oil film can be more easily to form) Optimized, compared to the current products can reduce 10% of the friction.