Needle Roller Bearing - Silent NRB for Automotive Electrical Components
NSK has developed a silent needle roller bearing that reduces noise by a third of that of conventional products. This innovation is perfect for electrical components mounted in vehicles with extremely quiet interiors while driving under the power of an electric motor, such as electric vehicles (EV) and hybrid vehicles (HEV).
NSK Europe - http://www.nskeurope.com
The ends of the needle rollers used in automotive electric components are crowned (i.e. given a curved arc) to make the bearings able to withstand a heavy load.
Improved roundness of the roller crowning compared to the conventional product through developing a high-precision machining method.
The noise level (sound pressure) generated by the bearing was reduced to one third of that of the conventional product.
The product will help create more silent, comfortable vehicle interiors in EVs, HEVs, and luxury cars where a very quiet ride is required.