NSK has made several developments in tribology and material technology as well as advancements in steel cleanliness to produce a significantly improved steel fatigue life. In addition, further advancements have been made in the heat treatment process which ensures excellent hardness and wear resistance characteristics, all of which enable the latest bearings to deliver improved performance and reliability.
In terms of actual bearing manufacture, the ball bearing raceway surface finish and geometry have been improved, reducing internal friction, which, in turn, reduces power consumption, operating noise levels, heat generation and wear. This is complimented by further improvements to the lubrication and sealing properties of the bearings.