New Product: NSK LCube II Tapered Roller Bearings for EV Drives

NSK Ltd. has developed a new “NSK LCube II” tapered roller bearing for use in electric vehicle (EV) drivetrain systems.

A special process is applied to the surface of each roller, greatly increasing durability and resistance to galling under very low (thin) lubrication conditions. Using less lubricant and low viscosity lubricant contributes to higher fuel economy (reduced fuel/electricity consumption). NSK is targeting 4 billion yen in sales by 2030.

Amid growing environmental concerns, consumers and businesses around the world are demanding better fuel economy from motor vehicles, leading to the rapid development of electric vehicles.

To improve fuel economy, there has been a move towards using less lubricant and/or low viscosity lubricant in transmission systems. As a result, the tapered roller bearings of transmissions are subjected to increasingly severe lubrication conditions, which increases the risk of depletion of the lubricating oil film (lean lubrication conditions), damage to the surface and bearing seizure.

High-efficiency transmission systems are considered essential to improving fuel economy, so NSK set out to develop a high-reliability bearing capable of overcoming these obstacles.

NSK LCube II helps improve the efficiency and reliability of electric vehicles.


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